2 1. A(min(i,j)) now is translated correctly (where A is an array).
3 2. 7 and 8 character variable names are allowed (but elicit a
5 3. LOGICAL*1 is treated as LOGICAL, with just one error message
6 per LOGICAL*1 statement (rather than one per variable declared
7 in that statement). [Note that LOGICAL*1 is not in Fortran 77.]
8 Like f77, f2c now allows the format in a read or write statement
9 to be an integer array.
12 Fixed botch in argument passing of substrings of equivalenced
16 Warn about incorrect code generated when a character-valued
17 function is not declared external and is passed as a parameter
18 (in violation of the Fortran 77 standard) before it is invoked.
28 Complain about overlapping initializations.
31 Warn about names declared EXTERNAL but never referenced;
32 include such names as externs in the generated C (even
33 though most C compilers will discard them).
36 New option -w8 to suppress complaint when COMMON or EQUIVALENCE
37 forces word alignment of a double.
38 Under -A (for ANSI C), ensure that floating constants (terminated
39 by 'f') contain either a decimal point or an exponent field.
40 Repair bugs sometimes encountered with CHAR and ICHAR intrinsic
42 Restore f77's optimizations for copying and comparing character
44 Always assume floating-point valued routines in libF77 return
45 doubles, even under -R.
46 Repair occasional omission of arguments in routines having multiple
48 Repair bugs in computing offsets of character strings involved
50 Don't omit structure qualification when COMMON variables are used
51 as FORMATs or internal files.
54 Warn about variables that appear only in data stmts; don't emit them.
55 Fix bugs in character DATA for noncharacter variables
56 involved in EQUIVALENCE.
57 Treat noncharacter variables initialized (at least partly) with
58 character data as though they were equivalenced -- put out a struct
59 and #define the variables. This eliminates the hideous and nonportable
60 numeric values that were used to initialize such variables.
61 Treat IMPLICIT NONE as IMPLICIT UNDEFINED(A-Z) .
62 Quit when given invalid options.
65 Modified naming scheme for generated intermediate variables;
66 more are recycled, fewer distinct ones used.
67 New option -W nn specifies nn characters/word for Hollerith
68 data initializing non-character variables.
69 Bug fix: x(i:min(i+10,j)) used to elicit "Can't handle opcode 31 yet".
70 Integer expressions of the form (i+const1) - (i+const2), where
71 i is a scalar integer variable, are now simplified to (const1-const2);
72 this leads to simpler translation of some substring expressions.
73 Initialize uninitialized portions of character string arrays to 0
74 rather than to blanks.
77 New option -c to insert comments showing original Fortran source.
78 New option -g to insert line numbers of original Fortran source.
81 ! recognized as in-line comment delimiter (a la Fortran 88).
84 New options to ease coping with systems that want the structs
85 that result from COMMON blocks to be defined just once:
86 -E causes uninitialized COMMON blocks to be declared Extern;
87 if Extern is undefined, f2c.h #defines it to be extern.
88 -ec causes a separate .c file to be emitted for each
89 uninitialized COMMON block: COMMON /ABC/ yields abc_com.c;
90 thus one can compile *_com.c into a library to ensure
91 precisely one definition.
92 -e1c is similar to -ec, except that everything goes into
93 one file, along with comments that give a sed script for
94 splitting the file into the pieces that -ec would give.
95 This is for use with netlib's "execute f2c" service (for which
96 -ec is coerced into -e1c, and the sed script will put everything
97 but the COMMON definitions into f2c_out.c ).
100 Convert "i = i op ..." into "i op= ...;" even when i is a
104 Name integer constants (passed as arguments) c__... rather
109 is translated correctly.
112 Floating-point constants are now kept as strings unless they
113 are involved in constant expressions that get simplified. The
114 floating-point constants kept as strings can have arbitrarily
115 many significant figures and a very large exponent field (as
116 large as long int allows on the machine on which f2c runs).
117 Thus, for example, the body of
120 double precision x(6), pi
121 parameter (pi=3.1415926535897932384626433832795028841972)
124 x(3) = 9287349823749272.7429874923740978492734D-298374
130 now gets translated into
132 x[1] = 3.1415926535897932384626433832795028841972;
133 x[2] = 4.1415926535897931;
134 x[3] = 9.2873498237492727429874923740978492734e-298359;
136 x[5] = (float)4.0005;
139 rather than the former
141 x[1] = 3.1415926535897931;
142 x[2] = 4.1415926535897931;
144 x[4] = (float)0.89000000000000003;
145 x[5] = (float)4.0004999999999997;
148 Recognition of f77 machine-constant intrinsics deleted, i.e.,
149 epbase, epprec, epemin, epemax, eptiny, ephuge, epmrsp.
152 Workarounds for glitches on some Sun systems...
153 libf77: libF77/makefile modified to point out possible need
154 to compile libF77/main.c with -Donexit=on_exit .
155 libi77: libI77/wref.c (and libI77/README) modified so non-ANSI
156 systems can compile with USE_STRLEN defined, which will cause
157 sprintf(b = buf, "%#.*f", d, x);
160 n = sprintf(b = buf, "%#.*f", d, x) + d1;
164 Longer names are now accepted (up to 50 characters); names may
165 contain underscores (in which case they will have two underscores
166 appended, to avoid clashes with library names).
170 1. Allow 3 (or, on Crays, 4) digit exponents under format Ew.d .
171 2. Try to get things right on machines where ints have 16 bits.
174 Supplied missing semicolon in parameterless subroutines that
175 have multiple entry points (all of them parameterless).
178 libf77 and libi77 revised to use types from f2c.h.
179 f2c now types floating-point valued C library routines as "double"
180 rather than "doublereal" (for use with nonstandard C compilers for
181 which "double" is IEEE double extended).
184 f2c.h updated to eliminate #defines rendered unnecessary (and,
185 indeed, dangerous) by change of 26 Nov. to long names possibly
186 containing underscores.
187 libi77 further revised: yesterday's change omitted two tweaks to fmt.h
188 (tweaks which only matter if float and real or double and doublereal are
192 Better error message (than "bad tag") for NAMELIST, which no longer
196 Allow capital letters in hex constants (f77 extension; e.g.,
197 x'a012BCd', X'A012BCD' and x'a012bcd' are all treated as the integer
199 libi77 further revised: lio.c lio.h lread.c wref.c wrtfmt.c tweaked
200 again to allow float and real or double and doublereal to be different.
203 Revised f2c.h -- required for the following...
204 Simpler looking translations for abs, min, max, using #defines in
206 libi77: more corrections to types; additions for NAMELIST.
207 Corrected casts in some I/O calls.
208 Translation of NAMELIST; libi77 must still be revised. Currently
209 libi77 gives you a run-time error message if you attempt NAMELIST I/O.
212 Fixed bug that prevented local integer variables that appear in DATA
213 stmts from being ASSIGNed statement labels.
214 Fillers (for DATA statements initializing EQUIVALENCEd variables and
215 variables in COMMON) typed integer rather than doublereal (for slightly
216 more portability, e.g. to Crays).
217 libi77: missing return values supplied in a few places; some tests
218 reordered for better working on the Cray.
219 libf77: better accuracy for complex divide, complex square root,
220 real mod function (casts to double; double temporaries).
223 Fixed bug that caused needless (albeit harmless) empty lines to be
224 inserted in the C output when a comment line contained trailing blanks.
225 Further tweak to type of fillers: allow doublereal fillers if the
226 struct has doublereal data.
229 Alteration of rule for producing external (C) names from names that
230 contain underscores. Now the external name is always obtained by
231 appending a pair of underscores.
234 C production inhibited after most errors.
237 Fixed bug in headers for subroutines having two or more character
238 strings arguments: the length arguments were reversed.
241 f2c.h libf77 libi77: adjusted so #undefs in f2c.h should not foil
242 compilation of libF77 and libI77.
243 libf77: getenv_ adjusted to work with unsorted environments.
244 libi77: the iostat= specifier should now work right with internal I/O.
247 f2c bugs fixed: In the absence of an err= specifier, the iostat=
248 specifier was generally set wrong. Character strings containing
249 explicit nulls (\0) were truncated at the first null.
250 Unlabeled DO loops recognized; must be terminated by ENDDO.
251 (Don't ask for CYCLE, EXIT, named DO loops, or DO WHILE.)
254 Nested unlabeled DO loops now handled properly; new warning for
255 extraneous text at end of FORMAT.
258 Fixed bug in translating dble(real(...)), dble(sngl(...)), and
259 dble(float(...)), where ... is either of type double complex or
260 is an expression requiring assignment to intermediate variables (e.g.,
261 dble(real(foo(x+1))), where foo is a function and x is a variable).
262 Regard nonblank label fields on continuation lines as an error.
265 New option -C++ yields output that should be understood
269 -a now excludes variables that appear in a namelist from those
270 that it makes automatic. (As before, it also excludes variables
271 that appear in a common, data, equivalence, or save statement.)
272 The syntactically correct Fortran
275 now yields syntactically correct C (even though both the Fortran
276 and C are buggy -- no FORMAT has not been ASSIGNed to i).
279 libi77: routines supporting NAMELIST added. Surrounding quotes
280 made optional when no ambiguity arises in a list or namelist READ
281 of a character-string value.
284 f2c.src made available.
287 New options -P to produce ANSI C or C++ prototypes for procedures
288 defined. Change to -A and -C++: f2c tries to infer prototypes for
289 invoked procedures unless the new -!P option is given. New warning
290 messages for inconsistent calling sequences among procedures within
291 a single file. Most of f2c/src is affected.
292 f2c.h: typedefs for procedure arguments added; netlib's f2c service
293 will insert appropriate typedefs for use with older versions of f2c.h.
296 f2c/src: defs.h exec.c format.c proc.c putpcc.c version.c xsum0.out
297 updated. Castargs and protofile made extern in defs.h; exec.c
298 modified so superfluous else clauses are diagnosed; unused variables
299 omitted from declarations in format.c proc.c putpcc.c .
302 No C emitted for procedures declared external but not referenced.
303 f2c.h: more new types added for use with -P.
304 New feature: f2c accepts as arguments files ending in .p or .P;
305 such files are assumed to be prototype files, such as produced by
306 the -P option. All prototype files are read before any Fortran files
307 and apply globally to all Fortran files. Suitable prototypes help f2c
308 warn about calling-sequence errors and can tell f2c how to type
309 procedures declared external but not explicitly typed; the latter is
310 mainly of interest for users of the -A and -C++ options. (Prototype
311 arguments are not available to netlib's "execute f2c" service.)
312 New option -it tells f2c to try to infer types of untyped external
313 arguments from their use as parameters to prototyped or previously
315 f2c/src: many minor cleanups; most modules changed. Individual
316 files in f2c/src are now in "bundle" format. The former f2c.1 is
317 now f2c.1t; "f2c.1t from f2c" and "f2c.1t from f2c/src" are now the
318 same, as are "f2c.1 from f2c" and "f2c.1 from f2c/src". People who
319 do not obtain a new copy of "all from f2c/src" should at least add
321 after the call on do_init_data(outfile, sortfp) in format_data.c .
324 Cleaner man page wording (thanks to Doug McIlroy).
325 -it now also applies to all untyped EXTERNAL procedures, not just
328 23 Jan. 01:34:00 EST 1990:
329 Bug fixes: under -A and -C++, incorrect C was generated for
330 subroutines having multiple entries but no arguments.
331 Under -A -P, subroutines of no arguments were given prototype
332 calling sequence () rather than (void).
333 Character-valued functions elicited erroneous warning messages
334 about inconsistent calling sequences when referenced by another
335 procedure in the same file.
336 f2c.1t: omit first appearance of libF77.a in FILES section;
337 load order of libraries is -lF77 -lI77, not vice versa (bug
338 introduced in yesterday's edits); define .F macro for those whose
339 -man lacks it. (For a while after yesterday's fixes were posted,
340 f2c.1t was out of date. Sorry!)
342 23 Jan. 9:53:24 EST 1990:
343 Character substring expressions involving function calls having
344 character arguments (including the intrinsic len function) yielded
346 Procedures defined after invocation (in the same file) with
347 conflicting argument types also got an erroneous message about
348 the wrong number of arguments.
350 24 Jan. 11:44:00 EST 1990:
351 Bug fixes: -p omitted #undefs; COMMON block names containing
352 underscores had their C names incorrectly computed; a COMMON block
353 having the name of a previously defined procedure wreaked havoc;
354 if all arguments were .P files, f2c tried reading the second as a
356 New feature: -P emits comments showing COMMON block lengths, so one
357 can get warnings of incompatible COMMON block lengths by having f2c
358 read .P (or .p) files. Now by running f2c twice, first with -P -!c
359 (or -P!c), then with *.P among the arguments, you can be warned of
360 inconsistent COMMON usage, and COMMON blocks having inconsistent
361 lengths will be given the maximum length. (The latter always did
362 happen within each input file; now -P lets you extend this behavior
365 26 Jan. 16:44:00 EST 1990:
366 Option -it made less aggressive: untyped external procedures that
367 are invoked are now typed by the rules of Fortran, rather than by
368 previous use of procedures to which they are passed as arguments
369 before being invoked.
370 Option -P now includes information about references, i.e., called
371 procedures, in the prototype files (in the form of special comments).
372 This allows iterative invocations of f2c to infer more about untyped
373 external names, particularly when multiple Fortran files are involved.
374 As usual, there are some obscure bug fixes:
375 1. Repair of erroneous warning messages about inconsistent number of
376 arguments that arose when a character dummy parameter was discovered
377 to be a function or when multiple entry points involved character
378 variables appearing in a previous entry point.
379 2. Repair of memory fault after error msg about "adjustable character
381 3. Under -U, allow MAIN_ as a subroutine name (in the same file as a
383 4. Change for consistency: a known function invoked as a subroutine,
384 then as a function elicits a warning rather than an error.
386 26 Jan. 22:32:00 EST 1990:
387 Fixed two bugs that resulted in incorrect C for substrings, within
388 the body of a character-valued function, of the function's name, when
389 those substrings were arguments to another function (even implicitly,
390 as in character-string assignment).
392 28 Jan. 18:32:00 EST 1990:
393 libf77, libi77: checksum files added; "make check" looks for
394 transmission errors. NAMELIST read modified to allow $ rather than &
395 to precede a namelist name, to allow $ rather than / to terminate
396 input where the name of another variable would otherwise be expected,
397 and to regard all nonprinting ASCII characters <= ' ' as spaces.
399 29 Jan. 02:11:00 EST 1990:
401 -it option made the default; -!it turns it off. Type information is
402 now updated in a previously missed case.
403 -P option tweaked again; message about when rerunning f2c may change
404 prototypes or declarations made more accurate.
405 New option -Ps implies -P and returns exit status 4 if rerunning
406 f2c -P with prototype inputs might change prototypes or declarations.
407 Now you can execute a crude script like
413 case $? in 4) ;; *) break;; esac
416 to get a file zap.P of the best prototypes f2c can determine for *.f .
418 Jan. 29 07:30:21 EST 1990:
419 Forgot to check for error status when setting return code 4 under -Ps;
420 error status (1, 2, 3, or, for caught signal, 126) now takes precedence.
422 Jan 29 14:17:00 EST 1990:
423 Incorrect handling of
425 repaired -- now treated as
426 open(n,file='filename')
427 (and, under -ext, given an error message).
428 New optional source file memset.c for people whose systems don't
429 provide memset, memcmp, and memcpy; #include <string.h> in mem.c
430 changed to #include "string.h" so BSD people can create a local
431 string.h that simply says #include <strings.h> .
433 Jan 30 10:34:00 EST 1990:
434 Fix erroneous warning at end of definition of a procedure with
435 character arguments when the procedure had previously been called with
436 a numeric argument instead of a character argument. (There were two
437 warnings, the second one incorrectly complaining of a wrong number of
440 Jan 30 16:29:41 EST 1990:
441 Fix case where -P and -Ps erroneously reported another iteration
442 necessary. (Only harm is the extra iteration.)
444 Feb 3 01:40:00 EST 1990:
445 Supply semicolon occasionally omitted under -c .
446 Try to force correct alignment when numeric variables are initialized
447 with character data (a non-standard and non-portable practice). You
448 must use the -W option if your code has such data statements and is
449 meant to run on a machine with other than 4 characters/word; e.g., for
450 code meant to run on a Cray, you would specify -W8 .
451 Allow parentheses around expressions in output lists (in write and
453 Rename source files so their names are <= 12 characters long
454 (so there's room to append .Z and still have <= 14 characters);
455 renamed files: formatdata.c niceprintf.c niceprintf.h safstrncpy.c .
456 f2c material made available by anonymous ftp from research.att.com
459 Feb 3 03:49:00 EST 1990:
460 Repair memory fault that arose from use (in an assignment or
461 call) of a non-argument variable declared CHARACTER*(*).
463 Feb 9 01:35:43 EST 1990:
464 Fix erroneous error msg about bad types in
465 subroutine foo(a,adim)
468 Fix improper passing of character args (and possible memory fault)
469 in the expression part of a computed goto.
470 Fix botched calling sequences in array references involving
471 functions having character args.
472 Fix memory fault caused by invocation of character-valued functions
474 Fix botched calling sequence of a character*1-valued function
475 assigned to a character*1 variable.
476 Fix bug in error msg for inconsistent number of args in prototypes.
477 Allow generation of C output despite inconsistencies in prototypes,
478 but give exit code 8.
479 Simplify include logic (by removing some bogus logic); never
480 prepend "/usr/include/" to file names.
481 Minor cleanups (that should produce no visible change in f2c's
482 behavior) in intr.c parse.h main.c defs.h formatdata.c p1output.c .
484 Feb 10 00:19:38 EST 1990:
485 Insert (integer) casts when floating-point expressions are used
487 Make SAVE stmt (with no variable list) override -a .
488 Minor cleanups: change field to Field in struct Addrblock (for the
489 benefit of buggy C compilers); omit system("/bin/cp ...") in misc.c .
491 Feb 13 00:39:00 EST 1990:
492 Error msg fix in gram.dcl: change "cannot make %s parameter"
493 to "cannot make into parameter".
495 Feb 14 14:02:00 EST 1990:
496 Various cleanups (invisible on systems with 4-byte ints), thanks
497 to Dave Regan: vaxx.c eliminated; %d changed to %ld various places;
498 external names adjusted for the benefit of stupid systems (that ignore
499 case and recognize only 6 significant characters in external names);
500 buffer shortened in xsum.c (e.g. for MS-DOS); fopen modes distinguish
501 text and binary files; several unused functions eliminated; missing
502 arg supplied to an unlikely fatalstr invocation.
504 Thu Feb 15 19:15:53 EST 1990:
505 More cleanups (invisible on systems with 4 byte ints); casts inserted
506 so most complaints from cyntax(1) and lint(1) go away; a few (int)
507 versus (long) casts corrected.
509 Fri Feb 16 19:55:00 EST 1990:
510 Recognize and translate unnamed Fortran 8x do while statements.
511 Fix bug that occasionally caused improper breaking of character
513 New error message for attempts to provide DATA in a type-declaration
516 Sat Feb 17 11:43:00 EST 1990:
517 Fix infinite loop clf -> Fatal -> done -> clf after I/O error.
518 Change "if (addrp->vclass = CLPROC)" to "if (addrp->vclass == CLPROC)"
519 in p1_addr (in p1output.c); this was probably harmless.
520 Move a misplaced } in lex.c (which slowed initkey()).
521 Thanks to Gary Word for pointing these things out.
523 Sun Feb 18 18:07:00 EST 1990:
524 Detect overlapping initializations of arrays and scalar variables
525 in previously missed cases.
526 Treat logical*2 as logical (after issuing a warning).
527 Don't pass string literals to p1_comment().
528 Correct a cast (introduced 16 Feb.) in gram.expr; this matters e.g.
530 Attempt to isolate UNIX-specific things in sysdep.c (a new source
531 file). Unless sysdep.c is compiled with SYSTEM_SORT defined, the
532 intermediate files created for DATA statements are now sorted in-core
533 without invoking system().
535 Tue Feb 20 16:10:35 EST 1990:
536 Move definition of binread and binwrite from init.c to sysdep.c .
537 Recognize Fortran 8x tokens < <= == >= > <> as synonyms for
538 .LT. .LE. .EQ. .GE. .GT. .NE.
539 Minor cleanup in putpcc.c: fully remove simoffset().
540 More discussion of system dependencies added to libI77/README.
542 Tue Feb 20 21:44:07 EST 1990:
543 Minor cleanups for the benefit of EBCDIC machines -- try to remove
544 the assumption that 'a' through 'z' are contiguous. (Thanks again to
545 Gary Word.) Also, change log2 to log_2 (shouldn't be necessary).
547 Wed Feb 21 06:24:56 EST 1990:
548 Fix botch in init.c introduced in previous change; only matters
549 to non-ASCII machines.
551 Thu Feb 22 17:29:12 EST 1990:
552 Allow several entry points to mention the same array. Protect
553 parameter adjustments with if's (for the case that an array is not
554 an argument to all entrypoints).
559 Compute intermediate variables used to evaluate dimension expressions
560 at the right time. Example previously mistranslated:
561 subroutine foo(x,k,m,n)
565 Detect duplicate arguments. (The error msg points to the first
566 executable stmt -- not wonderful, but not worth fixing.)
567 Minor cleanup of min/max computation (sometimes slightly simpler).
569 Sun Feb 25 09:39:01 EST 1990:
570 Minor tweak to multiple entry points: protect parameter adjustments
571 with if's only for (array) args that do not appear in all entry points.
572 Minor tweaks to format.c and io.c (invisible unless your compiler
573 complained at the duplicate #defines of IOSUNIT and IOSFMT or at
574 comparisons of p1gets(...) with NULL).
576 Sun Feb 25 18:40:10 EST 1990:
577 Fix bug introduced Feb. 22: if a subprogram contained DATA and the
578 first executable statement was labeled, then the label got lost.
579 (Just change INEXEC to INDATA in p1output.c; it occurs just once.)
581 Mon Feb 26 17:45:10 EST 1990:
582 Fix bug in handling of " and ' in comments.
584 Wed Mar 28 01:43:06 EST 1990:
586 1. Repair nasty I/O bug: opening two files and closing the first
587 (after possibly reading or writing it), then writing the second caused
588 the last buffer of the second to be lost.
589 2. Formatted reads of logical values treated all letters other than
591 libI77 files changed: err.c rdfmt.c Version.c
592 (Request "libi77 from f2c" -- you can't get these files individually.)
595 Repair nasty bug in translation of
596 ELSE IF (condition involving complicated abs, min, or max)
597 -- auxiliary statements were emitted at the wrong place.
598 Supply semicolon previously omitted from the translation of a label
599 (of a CONTINUE) immediately preceding an ELSE IF or an ELSE. This
600 bug made f2c produce invalid C.
601 Correct a memory fault that occurred (on some machines) when the
602 error message "adjustable dimension on non-argument" should be given.
603 Minor tweaks to remove some harmless warnings by overly chatty C
605 Argument arays having constant dimensions but a variable lower bound
606 (e.g., x(n+1:n+3)) had a * omitted from scalar arguments involved in
607 the array offset computation.
609 Wed Mar 28 18:47:59 EST 1990:
610 libf77: add exit(0) to end of main [return(0) encounters a Cray bug]
612 Sun Apr 1 16:20:58 EDT 1990:
613 Avoid dereferencing null when processing equivalences after an error.
615 Fri Apr 6 08:29:49 EDT 1990:
616 Calls involving alternate return specifiers omitted processing
617 needed for things like min, max, abs, and // (concatenation).
618 INTEGER*2 PARAMETERs were treated as INTEGER*4.
619 Convert some O(n^2) parsing to O(n).
621 Tue Apr 10 20:07:02 EDT 1990:
622 When inconsistent calling sequences involve differing numbers of
623 arguments, report the first differing argument rather than the numbers
625 Fix bug under -a: formatted I/O in which either the unit or the
626 format was a local character variable sometimes resulted in invalid C
627 (a static struct initialized with an automatic component).
628 Improve error message for invalid flag after elided -.
629 Complain when literal table overflows, rather than infinitely
630 looping. (The complaint mentions the new and otherwise undocumented
631 -NL option for specifying a larger literal table.)
632 New option -h for forcing strings to word (or, with -hd, double-word)
633 boundaries where possible.
634 Repair a bug that could cause improper splitting of strings.
635 Fix bug (cast of c to doublereal) in
641 New include file "sysdep.h" has some things from defs.h (and
642 elsewhere) that one may need to modify on some systems.
643 Some large arrays that were previously statically allocated are now
644 dynamically allocated when f2c starts running.
645 f2c/src files changed:
646 README cds.c defs.h f2c.1 f2c.1t format.c formatdata.c init.c
647 io.c lex.c main.c makefile mem.c misc.c names.c niceprintf.c
648 output.c parse_args.c pread.c put.c putpcc.c sysdep.h
651 Wed Apr 11 18:27:12 EDT 1990:
652 Fix bug in argument consistency checking of character, complex, and
653 double complex valued functions. If the same source file contained a
654 definition of such a function with arguments not explicitly typed,
655 then subsequent references to the function might get erroneous
656 warnings of inconsistent calling sequences.
657 Tweaks to sysdep.h for partially ANSI systems.
658 New options -kr and -krd cause f2c to use temporary variables to
659 enforce Fortran evaluation-order rules with pernicious, old-style C
660 compilers that apply the associative law to floating-point operations.
662 Sat Apr 14 15:50:15 EDT 1990:
663 libi77: libI77 adjusted to allow list-directed and namelist I/O
664 of internal files; bug in namelist I/O of logical and character arrays
665 fixed; list input of complex numbers adjusted to permit d or D to
666 denote the start of the exponent field of a component.
667 f2c itself: fix bug in handling complicated lower-bound
668 expressions for character substrings; e.g., min and max did not work
669 right, nor did function invocations involving character arguments.
670 Switch to octal notation, rather than hexadecimal, for nonprinting
671 characters in character and string constants.
672 Fix bug (when neither -A nor -C++ was specified) in typing of
673 external arguments of type complex, double complex, or character:
678 /* Complex */ int (*c) ();
679 (as, indeed, it once did) rather than
682 Sat Apr 14 22:50:39 EDT 1990:
683 libI77/makefile: updated "make check" to omit lio.c
684 lib[FI]77/makefile: trivial change: define CC = cc, reference $(CC).
685 (Request, e.g., "libi77 from f2c" -- you can't ask for individual
686 files from lib[FI]77.)
688 Wed Apr 18 00:56:37 EDT 1990:
689 Move declaration of atof() from defs.h to sysdep.h, where it is
690 now not declared if stdlib.h is included. (NeXT's stdlib.h has a
691 #define atof that otherwise wreaks havoc.)
692 Under -u, provide a more intelligible error message (than "bad tag")
693 for an attempt to define a function without specifying its type.
695 Wed Apr 18 17:26:27 EDT 1990:
696 Recognize \v (vertical tab) in Hollerith as well as quoted strings;
697 add recognition of \r (carriage return).
698 New option -!bs turns off recognition of escapes in character strings
699 (\0, \\, \b, \f, \n, \r, \t, \v).
700 Move to sysdep.c initialization of some arrays whose initialization
701 assumed ASCII; #define Table_size in sysdep.h rather than using
702 hard-coded 256 in allocating arrays of size 1 << (bits/byte).
704 Thu Apr 19 08:13:21 EDT 1990:
705 Warn when escapes would make Hollerith extend beyond statement end.
706 Omit max() definition from misc.c (should be invisible except on
707 systems that erroneously #define max in stdlib.h).
709 Mon Apr 23 22:24:51 EDT 1990:
710 When producing default-style C (no -A or -C++), cast switch
711 expressions to (int).
712 Move "-lF77 -lI77 -lm -lc" to link_msg, defined in sysdep.c .
713 Add #define scrub(x) to sysdep.h, with invocations in format.c and
714 formatdata.c, so that people who have systems like VMS that would
715 otherwise create multiple versions of intermediate files can
716 #define scrub(x) unlink(x)
718 Tue Apr 24 18:28:36 EDT 1990:
719 Pass string lengths once rather than twice to a function of character
720 arguments involved in comparison of character strings of length 1.
722 Fri Apr 27 13:11:52 EDT 1990:
723 Fix bug that made f2c gag on concatenations involving char(...) on
726 Sat Apr 28 23:20:16 EDT 1990:
727 Fix control-stack bug in
729 else if (complicated condition)
732 (where the complicated condition causes assignment to an auxiliary
733 variable, e.g., max(a*b,c)).
735 Mon Apr 30 13:30:10 EDT 1990:
736 Change fillers for DATA with holes from substructures to arrays
737 (in an attempt to make things work right with C compilers that have
738 funny padding rules for substructures, e.g., Sun C compilers).
739 Minor cleanup of exec.c (should not affect generated C).
741 Mon Apr 30 23:13:51 EDT 1990:
742 Fix bug in handling return values of functions having multiple
743 entry points of differing return types.
745 Sat May 5 01:45:18 EDT 1990:
746 Fix type inference bug in
753 Instead of warning of inconsistent calling sequences for goo,
754 f2c was simply making i a real variable; now i is correctly
755 typed as an integer variable, and f2c issues an error message.
756 Adjust error messages issued at end of declarations so they
757 don't blame the first executable statement.
759 Sun May 6 01:29:07 EDT 1990:
760 Fix bug in -P and -Ps: warn when the definition of a subprogram adds
761 information that would change prototypes or previous declarations.
763 Thu May 10 18:09:15 EDT 1990:
764 Fix further obscure bug with (default) -it: inconsistent calling
765 sequences and I/O statements could interact to cause a memory fault.
768 CALL GOO(' Something') ! Forgot integer first arg
770 SUBROUTINE GOO(IUNIT,MSG)
772 WRITE(IUNIT,'(1X,A)') MSG
775 Fri May 11 16:49:11 EDT 1990:
776 Under -!c, do not delete any .c files (when there are errors).
777 Avoid dereferencing 0 when a fatal error occurs while reading
780 Wed May 16 18:24:42 EDT 1990:
781 f2c.ps made available.
783 Mon Jun 4 12:53:08 EDT 1990:
784 Diagnose I/O units of invalid type.
785 Add specific error msg about dummy arguments in common.
787 Wed Jun 13 12:43:17 EDT 1990:
788 Under -A, supply a missing "[1]" for CHARACTER*1 variables that appear
789 both in a DATA statement and in either COMMON or EQUIVALENCE.
791 Mon Jun 18 16:58:31 EDT 1990:
792 Trivial updates to f2c.ps . ("Fortran 8x" --> "Fortran 90"; omit
793 "(draft)" from "(draft) ANSI C".)
795 Tue Jun 19 07:36:32 EDT 1990:
796 Fix incorrect code generated for ELSE IF(expression involving
797 function call passing non-constant substring).
798 Under -h, preserve the property that strings are null-terminated
800 Remove spaces between # and define in lex.c output.c parse.h .
802 Mon Jun 25 07:22:59 EDT 1990:
803 Minor tweak to makefile to reduce unnecessary recompilations.
805 Tue Jun 26 11:49:53 EDT 1990:
806 Fix unintended truncation of some integer constants on machines
807 where casting a long to (int) may change the value. E.g., when f2c
808 ran on machines with 16-bit ints, "i = 99999" was being translated
811 Wed Jun 27 11:05:32 EDT 1990:
812 Arrange for CHARACTER-valued PARAMETERs to honor their length
813 specifications. Allow CHAR(nn) in expressions defining such PARAMETERs.
815 Fri Jul 20 09:17:30 EDT 1990:
816 Avoid dereferencing 0 when a FORMAT statement has no label.
818 Thu Jul 26 11:09:39 EDT 1990:
819 Remarks about VOID and binread,binwrite added to README.
820 Tweaks to parse_args: should be invisible unless your compiler
821 complained at (short)*store.
823 Thu Aug 2 02:07:58 EDT 1990:
824 f2c.ps: change the first line of page 5 from
829 Tue Aug 14 13:21:24 EDT 1990:
830 libi77: libI77 adjusted to treat tabs as spaces in list input.
832 Fri Aug 17 07:24:53 EDT 1990:
833 libi77: libI77 adjusted so a blank='ZERO' clause (upper case Z)
834 in an open of a currently open file works right.
836 Tue Aug 28 01:56:44 EDT 1990:
837 Fix bug in warnings of inconsistent calling sequences: if an
838 argument to a subprogram was never referenced, then a previous
839 invocation of the subprogram (in the same source file) that
840 passed something of the wrong type for that argument did not
841 elicit a warning message.
843 Thu Aug 30 09:46:12 EDT 1990:
844 libi77: prevent embedded blanks in list output of complex values;
845 omit exponent field in list output of values of magnitude between
846 10 and 1e8; prevent writing stdin and reading stdout or stderr;
847 don't close stdin, stdout, or stderr when reopening units 5, 6, 0.
849 Tue Sep 4 12:30:57 EDT 1990:
850 Fix bug in C emitted under -I2 or -i2 for INTEGER*4 FUNCTION.
851 Warn of missing final END even if there are previous errors.
853 Fri Sep 7 13:55:34 EDT 1990:
854 Remark about "make xsum.out" and "make f2c" added to README.
856 Tue Sep 18 23:50:01 EDT 1990:
857 Fix null dereference (and, on some systems, writing of bogus *_com.c
858 files) under -ec or -e1c when a prototype file (*.p or *.P) describes
859 COMMON blocks that do not appear in the Fortran source.
861 Add some #ifdef lines (#ifdef MSDOS, #ifndef MSDOS) to avoid
862 references to stat and fstat on non-UNIX systems.
863 On UNIX systems, add component udev to unit; decide that old
864 and new files are the same iff both the uinode and udev components
866 When an open stmt specifies STATUS='OLD', use stat rather than
867 access (on UNIX systems) to check the existence of the file (in case
868 directories leading to the file have funny permissions and this is
869 a setuid or setgid program).
871 Thu Sep 27 16:04:09 EDT 1990:
872 Supply missing entry for Impldoblock in blksize array of cpexpr
873 (in expr.c). No examples are known where this omission caused trouble.
875 Tue Oct 2 22:58:09 EDT 1990:
876 libf77: test signal(...) == SIG_IGN rather than & 01 in main().
877 libi77: adjust rewind.c so two successive rewinds after a write
878 don't clobber the file.
880 Thu Oct 11 18:00:14 EDT 1990:
881 libi77: minor cleanups: add #include "fcntl.h" to endfile.c, err.c,
882 open.c; adjust g_char in util.c for segmented memories; in f_inqu
883 (inquire.c), define x appropriately when MSDOS is defined.
885 Mon Oct 15 20:02:11 EDT 1990:
886 Add #ifdef MSDOS pointer adjustments to mem.c; treat NAME= as a
887 synonym for FILE= in OPEN statements.
889 Wed Oct 17 16:40:37 EDT 1990:
890 libf77, libi77: minor cleanups: _cleanup() and abort() invocations
891 replaced by invocations of sig_die in main.c; some error messages
892 previously lost in buffers will now appear.
894 Mon Oct 22 16:11:27 EDT 1990:
895 libf77: separate sig_die from main (for folks who don't want to use
897 libi77: minor tweak to comments in README.
899 Fri Nov 2 13:49:35 EST 1990:
900 Use two underscores rather than one in generated temporary variable
901 names to avoid conflict with COMMON names. f2c.ps updated to reflect
902 this change and the NAME= extension introduced 15 Oct.
903 Repair a rare memory fault in io.c .
905 Mon Nov 5 16:43:55 EST 1990:
906 libi77: changes to open.c (and err.c): complain if an open stmt
907 specifies new= and the file already exists (as specified by Fortrans 77
908 and 90); allow file= to be omitted in open stmts and allow
909 status='replace' (Fortran 90 extensions).
911 Fri Nov 30 10:10:14 EST 1990:
912 Adjust malloc.c for unusual systems whose sbrk() can return values
913 not properly aligned for doubles.
914 Arrange for slightly more helpful and less repetitive warnings for
915 non-character variables initialized with character data; these warnings
916 are (still) suppressed by -w66.
918 Fri Nov 30 15:57:59 EST 1990:
919 Minor tweak to README (about changing VOID in f2c.h).
921 Mon Dec 3 07:36:20 EST 1990:
922 Fix spelling of "character" in f2c.1t.
924 Tue Dec 4 09:48:56 EST 1990:
925 Remark about link_msg and libf2c added to f2c/README.
927 Thu Dec 6 08:33:24 EST 1990:
928 Under -U, render label nnn as L_nnn rather than Lnnn.
930 Fri Dec 7 18:05:00 EST 1990:
931 Add more names from f2c.h (e.g. integer, real) to the c_keywords
932 list of names to which an underscore is appended to avoid confusion.
934 Mon Dec 10 19:11:15 EST 1990:
935 Minor tweaks to makefile (./xsum) and README (binread/binwrite).
936 libi77: a few modifications for POSIX systems; meant to be invisible
939 Sun Dec 16 23:03:16 EST 1990:
940 Fix null dereference caused by unusual erroneous input, e.g.
947 (Subroutine foo is illegal because the character statement comes after a
949 Use decimal rather than hex constants in xsum.c (to prevent
950 erroneous warning messages about constant overflow).
952 Mon Dec 17 12:26:40 EST 1990:
953 Fix rare extra underscore in character length parameters passed
954 for multiple entry points.
956 Wed Dec 19 17:19:26 EST 1990:
957 Allow generation of C despite error messages about bad alignment
958 forced by equivalence.
959 Allow variable-length concatenations in I/O statements, such as
960 open(3, file=bletch(1:n) // '.xyz')
962 Fri Dec 28 17:08:30 EST 1990:
963 Fix bug under -p with formats and internal I/O "units" in COMMON,
968 WRITE (*,FMT=F) 'Hello, world!'
971 Tue Jan 15 12:00:24 EST 1991:
972 Fix bug when two equivalence groups are merged, the second with
973 nonzero offset, and the result is then merged into a common block.
975 INTEGER W(3), X(3), Y(3), Z(3)
977 EQUIVALENCE (W(1),X(1)), (X(2),Y(1)), (Z(3),X(1))
978 ***** W WAS GIVEN THE WRONG OFFSET
979 Recognize Fortran 90's optional NML= in NAMELIST READs and WRITEs.
980 (Currently NML= and FMT= are treated as synonyms -- there's no
981 error message if, e.g., NML= specifies a format.)
982 libi77: minor adjustment to allow internal READs from character
983 string constants in read-only memory.
985 Fri Jan 18 22:56:15 EST 1991:
986 Add comment to README about needing to comment out the typedef of
987 size_t in sysdep.h on some systems, e.g. Sun 4.1.
988 Fix misspelling of "statement" in an error message in lex.c
990 Wed Jan 23 00:38:48 EST 1991:
991 Allow hex, octal, and binary constants to have the qualifying letter
992 (z, x, o, or b) either before or after the quoted string containing the
993 digits. For now this change will not be reflected in f2c.ps .
995 Tue Jan 29 16:23:45 EST 1991:
996 Arrange for character-valued statement functions to give results of
997 the right length (that of the statement function's name).
999 Wed Jan 30 07:05:32 EST 1991:
1000 More tweaks for character-valued statement functions: an error
1001 check and an adjustment so a right-hand side of nonconstant length
1002 (e.g., a substring) is handled right.
1004 Wed Jan 30 09:49:36 EST 1991:
1005 Fix p1_head to avoid printing (char *)0 with %s.
1007 Thu Jan 31 13:53:44 EST 1991:
1008 Add a test after the cleanup call generated for I/O statements with
1009 ERR= or END= clauses to catch the unlikely event that the cleanup
1010 routine encounters an error.
1012 Mon Feb 4 08:00:58 EST 1991:
1013 Minor cleanup: omit unneeded jumps and labels from code generated for
1014 some NAMELIST READs and WRITEs with IOSTAT=, ERR=, and/or END=.
1016 Tue Feb 5 01:39:36 EST 1991:
1017 Change Mktemp to mktmp (for the benefit of systems so brain-damaged
1018 that they do not distinguish case in external names -- and that for
1019 some reason want to load mktemp). Try to get xsum0.out right this
1020 time (it somehow didn't get updated on 4 Feb. 1991).
1021 Add note to libi77/README about adjusting the interpretation of
1022 RECL= specifiers in OPENs for direct unformatted I/O.
1024 Thu Feb 7 17:24:42 EST 1991:
1025 New option -r casts values of REAL functions, including intrinsics,
1026 to REAL. This only matters for unportable code like
1029 if (r .eq. asin(1.)) ...
1030 [The behavior of such code varies with the Fortran compiler used --
1031 and sometimes is affected by compiler options.] For now, the man page
1032 at the end of f2c.ps is the only part of f2c.ps that reflects this new
1035 Fri Feb 8 18:12:51 EST 1991:
1036 Cast pointer differences passed as arguments to the appropriate type.
1037 This matters, e.g., with MSDOS compilers that yield a long pointer
1038 difference but have int == short.
1039 Disallow nonpositive dimensions.
1041 Fri Feb 15 12:24:15 EST 1991:
1042 Change %d to %ld in sprintf call in putpower in putpcc.c.
1043 Free more memory (e.g. allowing translation of larger Fortran
1044 files under MS-DOS).
1045 Recognize READ (character expression) and WRITE (character expression)
1046 as formatted I/O with the format given by the character expression.
1047 Update year in Notice.
1049 Sat Feb 16 00:42:32 EST 1991:
1050 Recant recognizing WRITE(character expression) as formatted output
1051 -- Fortran 77 is not symmetric in its syntax for READ and WRITE.
1053 Mon Mar 4 15:19:42 EST 1991:
1054 Fix bug in passing the real part of a complex argument to an intrinsic
1055 function. Omit unneeded parentheses in nested calls to intrinsics.
1057 subroutine foo(x, y)
1059 x = exp(sin(real(y))) + exp(imag(y))
1062 Fri Mar 8 15:05:42 EST 1991:
1063 Fix a comment in expr.c; omit safstrncpy.c (which had bugs in
1064 cases not used by f2c).
1066 Wed Mar 13 02:27:23 EST 1991:
1067 Initialize firstmemblock->next in mem_init in mem.c . [On most
1068 systems it was fortuituously 0, but with System V, -lmalloc could
1069 trip on this missed initialization.]
1071 Wed Mar 13 11:47:42 EST 1991:
1072 Fix a reference to freed memory.
1074 Wed Mar 27 00:42:19 EST 1991:
1075 Fix a memory fault caused by such illegal Fortran as
1078 logical foo ! declaration among executables
1079 foo=.false. ! used to suffer memory fault
1082 Fri Apr 5 08:30:31 EST 1991:
1083 Fix loss of % in some format expressions, e.g.
1085 Fix botch introduced 27 March 1991 that caused subroutines with
1086 multiple entry points to have extraneous declarations of ret_val.
1088 Fri Apr 5 12:44:02 EST 1991
1089 Try again to omit extraneous ret_val declarations -- this morning's
1090 fix was sometimes wrong.
1092 Mon Apr 8 13:47:06 EDT 1991:
1093 Arrange for s_rnge to have the right prototype under -A -C .
1095 Wed Apr 17 13:36:03 EDT 1991:
1096 New fatal error message for apparent invocation of a recursive
1099 Thu Apr 25 15:13:37 EDT 1991:
1100 F2c and libi77 adjusted so NAMELIST works with -i2. (I forgot
1101 about -i2 when adding NAMELIST.) This required a change to f2c.h
1102 (that only affects NAMELIST I/O under -i2.) Man-page description of
1103 -i2 adjusted to reflect that -i2 stores array lengths in short ints.
1105 Fri Apr 26 02:54:41 EDT 1991:
1106 Libi77: fix some bugs in NAMELIST reading of multi-dimensional arrays
1109 Thu May 9 02:13:51 EDT 1991:
1110 Omit a trailing space in expr.c (could cause a false xsum value if
1111 a mailer drops the trailing blank).
1113 Thu May 16 13:14:59 EDT 1991:
1114 Libi77: increase LEFBL in lio.h to overcome a NeXT bug.
1115 Tweak for compilers that recognize "nested" comments: inside comments,
1116 turn /* into /+ (as well as */ into +/).
1118 Sat May 25 11:44:25 EDT 1991:
1119 libf77: s_rnge: declare line long int rather than int.
1121 Fri May 31 07:51:50 EDT 1991:
1122 libf77: system_: officially return status.
1124 Mon Jun 17 16:52:53 EDT 1991:
1125 Minor tweaks: omit unnecessary declaration of strcmp (that caused
1126 trouble on a system where strcmp was a macro) from misc.c; add
1127 SHELL = /bin/sh to makefiles.
1128 Fix a dereference of null when a CHARACTER*(*) declaration appears
1129 (illegally) after DATA. Complain only once per subroutine about
1130 declarations appearing after DATA.
1132 Mon Jul 1 00:28:13 EDT 1991:
1133 Add test and error message for illegal use of subroutine names, e.g.
1138 Mon Jul 8 21:49:20 EDT 1991:
1139 Issue a warning about things like
1142 (which is treated as i = ichar('a')). [It might be nice to treat 'abc'
1143 as an integer initialized (in a DATA statement) with 'abc', but
1144 other matters have higher priority.]
1151 (which assumes ASCII).
1153 Fri Jul 12 07:41:30 EDT 1991:
1154 Note added to README about erroneous definitions of __STDC__ .
1156 Sat Jul 13 13:38:54 EDT 1991:
1157 Fix bugs in double type convesions of complex values, e.g.
1158 sngl(real(...)) or dble(real(...)) (where ... is complex).
1160 Mon Jul 15 13:21:42 EDT 1991:
1161 Fix bug introduced 8 July 1991 that caused erroneous warnings
1162 "ichar([first char. of] char. string) assumed for conversion to numeric"
1163 when a subroutine had an array of character strings as an argument.
1165 Wed Aug 28 01:12:17 EDT 1991:
1166 Omit an unused function in format.c, an unused variable in proc.c .
1167 Under -r8, promote complex to double complex (as the man page claims).
1169 Fri Aug 30 17:19:17 EDT 1991:
1170 f2c.ps updated: slightly expand description of intrinsics and,or,xor,
1171 not; add mention of intrinsics lshift, rshift; add note about f2c
1172 accepting Fortran 90 inline comments (starting with !); update Cobalt
1175 Tue Sep 17 07:17:33 EDT 1991:
1176 libI77: err.c and open.c modified to use modes "rb" and "wb"
1177 when (f)opening unformatted files; README updated to point out
1178 that it may be necessary to change these modes to "r" and "w"
1179 on some non-ANSI systems.
1181 Tue Oct 15 10:25:49 EDT 1991:
1182 Minor tweaks that make some PC compilers happier: insert some
1183 casts, add args to signal functions.
1184 Change -g to emit uncommented #line lines -- and to emit more of them;
1185 update fc, f2c.1, f2c.1t, f2c.ps to reflect this.
1186 Change uchar to Uchar in xsum.c .
1187 Bring gram.c up to date.
1189 Thu Oct 17 09:22:05 EDT 1991:
1190 libi77: README, fio.h, sue.c, uio.c changed so the length field
1191 in unformatted sequential records has type long rather than int
1192 (unless UIOLEN_int is #defined). This is for systems where sizeof(int)
1193 can vary, depending on the compiler or compiler options.
1195 Thu Oct 17 13:42:59 EDT 1991:
1196 libi77: inquire.c: when MSDOS is defined, don't strcmp units[i].ufnm
1199 Fri Oct 18 15:16:00 EDT 1991:
1200 Correct xsum0.out in "all from f2c/src" (somehow botched on 15 Oct.).
1202 Tue Oct 22 18:12:56 EDT 1991:
1203 Fix memory fault when a character*(*) argument is used (illegally)
1204 as a dummy variable in the definition of a statement function. (The
1205 memory fault occurred when the statement function was invoked.)
1206 Complain about implicit character*(*).
1208 Thu Nov 14 08:50:42 EST 1991:
1209 libi77: change uint to Uint in fmt.h, rdfmt.c, wrtfmt.c; this change
1210 should be invisible unless you're running a brain-damaged system.
1212 Mon Nov 25 19:04:40 EST 1991:
1213 libi77: correct botches introduced 17 Oct. 1991 and 14 Nov. 1991
1214 (change uint to Uint in lwrite.c; other changes that only matter if
1215 sizeof(int) != sizeof(long)).
1216 Add a more meaningful error message when bailing out due to an attempt
1217 to invoke a COMMON variable as a function.
1219 Sun Dec 1 19:29:24 EST 1991:
1220 libi77: uio.c: add test for read failure (seq. unformatted reads);
1221 adjust an error return from EOF to off end of record.
1223 Tue Dec 10 17:42:28 EST 1991:
1224 Add tests to prevent memory faults with bad uses of character*(*).
1226 Thu Dec 12 11:24:41 EST 1991:
1227 libi77: fix bug with internal list input that caused the last
1228 character of each record to be ignored; adjust error message in
1229 internal formatted input from "end-of-file" to "off end of record"
1230 if the format specifies more characters than the record contains.
1232 Wed Dec 18 17:48:11 EST 1991:
1233 Fix bug in translating nonsensical ichar invocations involving
1235 Fix bug in passing intrinsics lle, llt, lge, lgt as arguments;
1236 hl_le was being passed rather than l_le, etc.
1237 libf77: adjust length parameters from long to ftnlen, for
1238 compiling with f2c_i2 defined.
1240 Sat Dec 21 15:30:57 EST 1991:
1241 Allow DO nnn ... to end with an END DO statement labelled nnn.
1243 Tue Dec 31 13:53:47 EST 1991:
1244 Fix bug in handling dimension a(n**3,2) -- pow_ii was called
1246 Fix bug in translating
1249 write(abc,'(i10)') 123
1251 (omitted declaration and initialiation of abc_dim1).
1252 Complain about dimension expressions of such invalid types
1253 as complex and logical.
1255 Fri Jan 17 11:54:20 EST 1992:
1256 Diagnose some illegal uses of main program name (rather than
1258 libi77: (1) In list and namelist input, treat "r* ," and "r*,"
1259 alike (where r is a positive integer constant), and fix a bug in
1260 handling null values following items with repeat counts (e.g.,
1261 2*1,,3). (2) For namelist reading of a numeric array, allow a new
1262 name-value subsequence to terminate the current one (as though the
1263 current one ended with the right number of null values).
1264 (3) [lio.h, lwrite.c]: omit insignificant zeros in list and namelist
1265 output. (Compile with -DOld_list_output to get the old behavior.)
1267 Sat Jan 18 15:58:01 EST 1992:
1268 libi77: make list output consistent with F format by printing .1
1269 rather than 0.1 (introduced yesterday).
1271 Wed Jan 22 08:32:43 EST 1992:
1272 libi77: add comment to README pointing out preconnection of
1273 Fortran units 5, 6, 0 to stdin, stdout, stderr (respectively).
1275 Mon Feb 3 11:57:53 EST 1992:
1276 libi77: fix namelist read bug that caused the character following
1277 a comma to be ignored.
1279 Fri Feb 28 01:04:26 EST 1992:
1280 libf77: fix buggy z_sqrt.c (double precision square root), which
1281 misbehaved for arguments in the southwest quadrant.
1283 Thu Mar 19 15:05:18 EST 1992:
1284 Fix bug (introduced 17 Jan 1992) in handling multiple entry points
1285 of differing types (with implicitly typed entries appearing after
1286 the first executable statement).
1287 Fix memory fault in the following illegal Fortran:
1288 double precision foo(i)
1289 * illegal: above should be "double precision function foo(i)"
1293 Note about ANSI_Libraries (relevant, e.g., to IRIX 4.0.1 and AIX)
1295 Abort zero divides during constant simplification.
1297 Sat Mar 21 01:27:09 EST 1992:
1298 Tweak ckalloc (misc.c) for systems where malloc(0) = 0; this matters
1299 for subroutines with multiple entry points but no arguments.
1300 Add "struct memblock;" to init.c (irrelevant to most compilers).
1302 Wed Mar 25 13:31:05 EST 1992:
1303 Fix bug with IMPLICIT INTEGER*4(...): under -i2 or -I2, the *4 was
1306 Tue May 5 09:53:55 EDT 1992:
1307 Tweaks to README; e.g., ANSI_LIbraries changed to ANSI_Libraries .
1309 Wed May 6 23:49:07 EDT 1992
1310 Under -A and -C++, have subroutines return 0 (even if they have
1312 Adjust libi77 (rsne.c and lread.c) for systems where ungetc is
1313 a macro. Tweak lib[FI]77/makefile to use unique intermediate file
1314 names (for parallel makes).
1316 Tue May 19 09:03:05 EDT 1992:
1317 Adjust libI77 to make err= work with internal list and formatted I/O.
1319 Sat May 23 18:17:42 EDT 1992:
1320 Under -A and -C++, supply "return 0;" after the code generated for
1321 a STOP statement -- the C compiler doesn't know that s_stop won't
1323 New (mutually exclusive) options:
1324 -f treats all input lines as free-format lines,
1325 honoring text that appears after column 72
1326 and not padding lines shorter than 72 characters
1327 with blanks (which matters if a character string
1328 is continued across 2 or more lines).
1329 -72 treats text appearing after column 72 as an error.
1331 Sun May 24 09:45:37 EDT 1992:
1332 Tweak description of -f in f2c.1 and f2c.1t; update f2c.ps .
1334 Fri May 29 01:17:15 EDT 1992:
1335 Complain about externals used as variables. Example
1338 a = a*b ! illegal use of b; perhaps should be b()
1341 Mon Jun 15 11:15:27 EDT 1992:
1342 Fix bug in handling namelists with names that have underscores.
1344 Sat Jun 27 17:30:59 EDT 1992:
1345 Under -A and -C++, end Main program aliases with "return 0;".
1346 Under -A and -C++, use .P files and usage in previous subprograms
1347 in the current file to give prototypes for functions declared EXTERNAL
1349 Fix memory fault under -d1 -P .
1350 Under -A and -C++, cast arguments to the right types in calling
1351 a function that has been defined in the current file or in a .P file.
1352 Fix bug in handling multi-dimensional arrays with array references
1353 in their leading dimensions.
1354 Fix bug in the intrinsic cmplx function when the first argument
1355 involves an expression for which f2c generates temporary variables,
1356 e.g. cmplx(abs(real(a)),1.) .
1358 Sat Jul 18 07:36:58 EDT 1992:
1359 Fix buglet with -e1c (invisible on most systems) temporary file
1360 f2c_functions was unlinked before being closed.
1361 libf77: fix bugs in evaluating m**n for integer n < 0 and m an
1362 integer different from 1 or a real or double precision 0.
1363 Catch SIGTRAP (to print "Trace trap" before aborting). Programs
1364 that previously erroneously computed 1 for 0**-1 may now fault.
1365 Relevant routines: main.c pow_di.c pow_hh.c pow_ii.c pow_ri.c .
1367 Sat Jul 18 08:40:10 EDT 1992:
1368 libi77: allow namelist input to end with & (e.g. &end).
1370 Thu Jul 23 00:14:43 EDT 1992
1371 Append two underscores rather than one to C keywords used as
1372 local variables to avoid conflicts with similarly named COMMON blocks.
1374 Thu Jul 23 11:20:55 EDT 1992:
1375 libf77, libi77 updated to assume ANSI prototypes unless KR_headers
1377 libi77 now recognizes a Z format item as in Fortran 90;
1378 the implementation assumes 8-bit bytes and botches character strings
1379 on little-endian machines (by printing their bytes from right to
1380 left): expect this bug to persist; fixing it would require a
1381 change to the I/O calling sequences.
1383 Tue Jul 28 15:18:33 EDT 1992:
1384 libi77: insert missed "#ifdef KR_headers" lines around getnum
1385 header in rsne.c. Version not updated.
1387 NOTE: "index from f2c" now ends with current timestamps of files in
1388 "all from f2c/src", sorted by time. To bring your source up to date,
1389 obtain source files with a timestamp later than the time shown in your
1392 Fri Aug 14 08:07:09 EDT 1992:
1393 libi77: tweak wrt_E in wref.c to avoid signing NaNs.
1395 Sun Aug 23 19:05:22 EDT 1992:
1396 fc: supply : after O in getopt invocation (for -O1 -O2 -O3).
1398 Mon Aug 24 18:37:59 EDT 1992:
1399 Recant above tweak to fc: getopt is dumber than I thought;
1400 it's necessary to say -O 1 (etc.).
1401 libF77/README: add comments about ABORT, ERF, DERF, ERFC, DERFC,
1402 GETARG, GETENV, IARGC, SIGNAL, and SYSTEM.
1404 Tue Oct 27 01:57:42 EST 1992:
1406 1. Fix botched indirection in signal_.c.
1407 2. Supply missing l_eof = 0 assignment to s_rsne() in rsne.c (so
1408 end-of-file on other files won't confuse namelist reads of external
1410 3. Prepend f__ to external names that are only of internal
1411 interest to lib[FI]77.
1413 Thu Oct 29 12:37:18 EST 1992:
1414 libf77: Fix botch in signal_.c when KR_headers is #defined;
1415 add CFLAGS to makefile.
1416 libi77: trivial change to makefile for consistency with
1419 Wed Feb 3 02:05:16 EST 1993:
1420 Recognize types INTEGER*1, LOGICAL*1, LOGICAL*2, INTEGER*8.
1421 INTEGER*8 is not well tested and will only work reasonably on
1422 systems where int = 4 bytes, long = 8 bytes; on such systems,
1423 you'll have to modify f2c.h appropriately, changing integer
1424 from long to int and adding typedef long longint. You'll also
1425 have to compile libI77 with Allow_TYQUAD #defined and adjust
1426 libF77/makefile to compile pow_qq.c. In the f2c source, changes
1427 for INTEGER*8 are delimited by #ifdef TYQUAD ... #endif. You
1428 can omit the INTEGER*8 changes by compiling with NO_TYQUAD
1429 #defined. Otherwise, the new command-line option -!i8
1430 disables recognition of INTEGER*8.
1431 libf77: add pow_qq.c
1432 libi77: add #ifdef Allow_TYQUAD stuff. Changes for INTEGER*1,
1433 LOGICAL*1, and LOGICAL*2 came last 23 July 1992. Fix bug in
1434 backspace (that only bit when the last character of the second
1435 or subsequent buffer read was the previous newline). Guard
1436 against L_tmpnam being too small in endfile.c. For MSDOS,
1437 close and reopen files when copying to truncate. Lengthen
1438 LINTW (buffer size in lwrite.c).
1439 Add \ to the end of #define lines that get broken.
1440 Fix bug in handling NAMELIST of items in EQUIVALENCE.
1441 Under -h (or -hd), convert Hollerith to integer in general expressions
1442 (e.g., assignments), not just when they're passed as arguments, and
1443 blank-pad rather than 0-pad the Hollerith to a multiple of
1444 sizeof(integer) or sizeof(doublereal).
1445 Add command-line option -s, which instructs f2c preserve multi-
1446 dimensional subscripts (by emitting and using appropriate #defines).
1447 Fix glitch (with default type inferences) in examples like
1452 This gave two warning messages:
1453 Warning on line 4 of y.f: inconsistent calling sequences for foo:
1454 here 1, previously 2 args and string lengths.
1455 Warning on line 4 of y.f: inconsistent calling sequences for foo:
1456 here 2, previously 1 args and string lengths.
1457 Now the second Warning is suppressed.
1458 Complain about all inconsistent arguments, not just the first.
1459 Switch to automatic creation of "all from f2c/src". For folks
1460 getting f2c source via ftp, this means f2c/src/all.Z is now an
1461 empty file rather than a bundle.
1462 Separate -P and -A: -P no longer implies -A.
1464 Thu Feb 4 00:32:20 EST 1993:
1465 Fix some glitches (introduced yesterday) with -h .
1467 Fri Feb 5 01:40:38 EST 1993:
1468 Fix bug in types conveyed for namelists (introduced 3 Feb. 1993).
1470 Fri Feb 5 21:26:43 EST 1993:
1471 libi77: tweaks to NAMELIST and open (after comments by Harold
1473 1. Reading a ? instead of &name (the start of a namelist) causes
1474 the namelist being sought to be written to stdout (unit 6);
1475 to omit this feature, compile rsne.c with -DNo_Namelist_Questions.
1476 2. Reading the wrong namelist name now leads to an error message
1477 and an attempt to skip input until the right namelist name is found;
1478 to omit this feature, compile rsne.c with -DNo_Bad_Namelist_Skip.
1479 3. Namelist writes now insert newlines before each variable; to omit
1480 this feature, compile xwsne.c with -DNo_Extra_Namelist_Newlines.
1481 4. For OPEN of sequential files, ACCESS='APPEND' (or
1482 access='anything else starting with "A" or "a"') causes the file to
1483 be positioned at end-of-file, so a write will append to the file.
1484 (This is nonstandard, but does not require modifying data
1487 Mon Feb 8 14:40:37 EST 1993:
1488 Increase number of continuation lines allowed from 19 to 99,
1489 and allow changing this limit with -NC (e.g. -NC200 for 200 lines).
1490 Treat control-Z (at the beginning of a line) as end-of-file: see
1491 the new penultimate paragraph of README.
1492 Fix a rarely seen glitch that could make an error messages to say
1495 Tue Feb 9 02:05:40 EST 1993
1496 libi77: change some #ifdef MSDOS lines to #ifdef NON_UNIX_STDIO,
1497 and, in err.c under NON_UNIX_STDIO, avoid close(creat(name,0666))
1498 when the unit has another file descriptor for name.
1500 Tue Feb 9 17:12:49 EST 1993
1501 libi77: more tweaks for NON_UNIX_STDIO: use stdio routines
1502 rather than open, close, creat, seek, fdopen (except for f__isdev).
1504 Fri Feb 12 15:49:33 EST 1993
1505 Update src/gram.c (which was forgotten in the recent updates).
1506 Most folks regenerate it anyway (wity yacc or bison).
1508 Thu Mar 4 17:07:38 EST 1993
1509 Increase default max labels in computed gotos and alternate returns
1510 to 257, and allow -Nl1234 to specify this number.
1511 Tweak put.c to check p->tag == TADDR in realpart() and imagpart().
1512 Adjust fc script to allow .r (RATFOR) files and -C (check subscripts).
1513 Avoid declaring strchr in niceprintf.c under -DANSI_Libraries .
1514 gram.c updated again.
1515 libi77: err.c, open.c: take declaration of fdopen from rawio.h.
1517 Sat Mar 6 07:09:11 EST 1993
1518 libi77: uio.c: adjust off-end-of-record test for sequential
1519 unformatted reads to respond to err= rather than end= .
1521 Sat Mar 6 16:12:47 EST 1993
1522 Treat scalar arguments of the form (v) and v+0, where v is a variable,
1523 as expressions: assign to a temporary variable, and pass the latter.
1526 Mon Mar 8 09:35:38 EST 1993
1527 "f2c.h from f2c" updated to add types logical1 and integer1 for
1528 LOGICAL*1 and INTEGER*1. ("f2c.h from f2c" is supposed to be the
1529 same as "f2c.h from f2c/src", which was updated 3 Feb. 1993.)
1531 Mon Mar 8 17:57:55 EST 1993
1532 Fix rarely seen bug that could cause strange casts in function
1533 invocations (revealed by an example with msdos/f2c.exe).
1534 msdos/f2cx.exe.Z and msdos/f2c.exe.Z updated (ftp access only).
1536 Fri Mar 12 12:37:01 EST 1993
1537 Fix bug with -s in handling subscripts involving min, max, and
1538 complicated expressions requiring temporaries.
1539 Fix bug in handling COMMONs that need padding by a char array.
1540 msdos/f2cx.exe.Z and msdos/f2c.exe.Z updated (ftp access only).
1542 Fri Mar 12 17:16:16 EST 1993
1543 libf77, libi77: updated for compiling under C++.
1545 Mon Mar 15 16:21:37 EST 1993
1546 libi77: more minor tweaks (for -DKR_headers); Version.c not changed.
1548 Thu Mar 18 12:37:30 EST 1993
1549 Flag -r (for discarding carriage-returns on systems that end lines
1550 with carriage-return/newline pairs, e.g. PCs) added to xsum, and
1551 xsum.c converted to ANSI/ISO syntax (with K&R syntax available with
1552 -DKR_headers). [When time permits, the f2c source will undergo a
1553 similar conversion.]
1554 libi77: tweaks to #includes in endfile.c, err.c, open.c, rawio.h;
1555 Version.c not changed.
1556 f2c.ps updated (to pick up revision of 2 Feb. 1993 to f2c.1).
1558 Fri Mar 19 09:19:26 EST 1993
1559 libi77: add (char *) casts to malloc and realloc invocations
1560 in err.c, open.c; Version.c not changed.
1562 Tue Mar 30 07:17:15 EST 1993
1563 Fix bug introduced 6 March 1993: possible memory corruption when
1564 loops in data statements involve constant subscripts, as in
1565 DATA (GUNIT(1,I),I=0,14)/15*-1/
1567 Tue Mar 30 16:17:42 EST 1993
1568 Fix bug with -s: (floating-point array item)*(complex item)
1569 generates an _subscr() reference for the floating-point array,
1570 but a #define for the _subscr() was omitted.
1572 Tue Apr 6 12:11:22 EDT 1993
1573 libi77: adjust error returns for formatted inputs to flush the current
1574 input line when err= is specified. To restore the old behavior (input
1575 left mid-line), either adjust the #definition of errfl in fio.h or omit
1576 the invocation of f__doend in err__fl (in err.c).
1578 Tue Apr 6 13:30:04 EDT 1993
1583 which now passes a copy of i, rather than i itself.
1585 Sat Apr 17 11:41:02 EDT 1993
1586 Adjust appending of underscores to conform with f2c.ps ("A Fortran
1587 to C Converter"): names that conflict with C keywords or f2c type
1588 names now have just one underscore appended (rather than two); add
1589 "integer1", "logical1", "longint" to the keyword list.
1590 Append underscores to names that appear in EQUIVALENCE and are
1591 component names in a structure declared in f2c.h, thus avoiding a
1592 problem caused by the #defines emitted for equivalences. Example:
1595 a = 1 ! a.i went awry because of #define i
1599 Adjust line-breaking logic to avoid splitting very long constants
1600 (and names). Example:
1601 ! The next line starts with tab and thus is a free-format line.
1602 a=.012345689012345689012345689012345689012345689012345689012345689012345689
1604 Omit extraneous "return 0;" from entry stubs emitted for multiple
1605 entry points of type character, complex, or double complex.
1607 Sat Apr 17 14:35:05 EDT 1993
1608 Fix bug (introduced 4 Feb.) in separating -P from -A that kept f2c
1609 from re-reading a .P file written without -A or -C++ describing a
1610 routine with an external argument. [See the just-added note about
1611 separating -P from -A in the changes above for 3 Feb. 1993.]
1612 Fix bug (type UNKNOWN for V in the example below) revealed by
1620 Sun Apr 18 19:55:26 EDT 1993
1621 Fix wrong calling sequence for mem() in yesterday's addition to
1624 Wed Apr 21 17:39:46 EDT 1993
1632 20 ASSIGN 10 TO L2 ! Bug here because 10 had been assigned
1633 ! to another label, then defined.
1637 Fri Apr 23 18:38:50 EDT 1993
1638 Fix bug with -h revealed in
1641 WRITE(FOO,'(I6)') 2 ! struct icilist io___3 botched
1644 Tue Apr 27 16:08:28 EDT 1993
1645 Tweak to makefile: remove "size f2c".
1647 Tue May 4 23:48:20 EDT 1993
1648 libf77: tweak signal_ line of f2ch.add .
1650 Tue Jun 1 13:47:13 EDT 1993
1651 Fix bug introduced 3 Feb. 1993 in handling multiple entry
1652 points with differing return types -- the postfix array in proc.c
1653 needed a new entry for integer*8 (which resulted in wrong
1654 Multitype suffixes for non-integral types).
1655 For (default) K&R C, generate VOID rather than int functions for
1656 functions of Fortran type character, complex, and double complex.
1657 msdos/f2cx.exe.Z and msdos/f2c.exe.Z updated (ftp access only).
1659 Tue Jun 1 23:11:15 EDT 1993
1660 f2c.h: add Multitype component g and commented type longint.
1661 proc.c: omit "return 0;" from stubs for complex and double complex
1662 entries (when entries have multiple types); add test to avoid memory
1663 fault with illegal combinations of entry types.
1665 Mon Jun 7 12:00:47 EDT 1993
1669 data m(1)/1/, m(2)/2/ ! one too many initializers
1671 msdos/f2cx.exe.Z and msdos/f2c.exe.Z updated (ftp access only).
1673 Fri Jun 18 13:55:51 EDT 1993
1674 libi77: change type of signal_ in f2ch.add; change type of il in
1675 union Uint from long to integer (for machines like the DEC Alpha,
1676 where integer should be the same as int). Version.c not changed.
1677 Tweak gram.dcl and gram.head: add semicolons after some rules that
1678 lacked them, and remove an extraneous semicolon. These changes are
1679 completely transparent to our local yacc programs, but apparently
1680 matter on some VMS systems.
1682 Wed Jun 23 01:02:56 EDT 1993
1683 Update "fc" shell script, and bring f2c.1 and f2c.1t up to date:
1684 they're meant to be linked with (i.e., the same as) src/f2c.1 and
1685 src/f2c.1t . [In the last update of f2c.1* (2 Feb. 1993), only
1686 src/f2c.1 and src/f2c.1t got changed -- a mistake.]
1688 Wed Jun 23 09:04:31 EDT 1993
1689 libi77: fix bug in format reversions for internal writes.
1691 character*60 lines(2)
1692 write(lines,"('n =',i3,2(' more text',i3))") 3, 4, 5, 6
1693 write(*,*) 'lines(1) = ', lines(1)
1694 write(*,*) 'lines(2) = ', lines(2)
1696 gave an error message that began "iio: off end of record", rather
1697 than giving the correct output:
1699 lines(1) = n = 3 more text 4 more text 5
1700 lines(2) = more text 6 more text
1702 Thu Aug 5 11:31:14 EDT 1993
1703 libi77: lread.c: fix bug in handling repetition counts for logical
1704 data (during list or namelist input). Change struct f__syl to
1705 struct syl (for buggy compilers).
1707 Sat Aug 7 16:05:30 EDT 1993
1708 libi77: lread.c (again): fix bug in namelist reading of incomplete
1710 Fix minor calling-sequence errors in format.c, output.c, putpcc.c:
1711 should be invisible.
1713 Mon Aug 9 09:12:38 EDT 1993
1714 Fix erroneous cast under -A in translating
1715 character*(*) function getc()
1716 getc(2:3)=' ' !wrong cast in first arg to s_copy
1718 libi77: lread.c: fix bug in namelist reading of an incomplete array
1719 of numeric data followed by another namelist item whose name starts
1720 with 'd', 'D', 'e', or 'E'.
1722 Fri Aug 20 13:22:10 EDT 1993
1723 Fix bug in do while revealed by
1724 subroutine skdig (line, i)
1725 character line*(*), ch*1
1728 isdigit(ch) = ch.ge.'0' .and. ch.le.'9'
1729 do while (isdigit(line(i:i))) ! ch__1[0] was set before
1730 ! "while(...) {...}"
1735 Fri Aug 27 08:22:54 EDT 1993
1736 Add #ifdefs to avoid declaring atol when it is a macro; version.c
1739 Wed Sep 8 12:24:26 EDT 1993
1740 libi77: open.c: protect #include "sys/..." with
1741 #ifndef NON_UNIX_STDIO; Version date not changed.
1743 Thu Sep 9 08:51:21 EDT 1993
1744 Adjust "include" to interpret file names relative to the directory
1745 of the file that contains the "include".
1747 Fri Sep 24 00:56:12 EDT 1993
1748 Fix offset error resulting from repeating the same equivalence
1749 statement twice. Example:
1751 equivalence (a(2), b(2))
1752 equivalence (a(2), b(2))
1754 Increase MAXTOKENLEN (to roughly the largest allowed by ANSI C).
1756 Mon Sep 27 08:55:09 EDT 1993
1757 libi77: endfile.c: protect #include "sys/types.h" with
1758 #ifndef NON_UNIX_STDIO; Version.c not changed.
1760 Fri Oct 15 15:37:26 EDT 1993
1761 Fix rarely seen parsing bug illustrated by
1762 subroutine foo(xabcdefghij)
1763 character*(*) xabcdefghij
1764 IF (xabcdefghij.NE.'##') GOTO 40
1766 in which the spacing in the IF line is crucial.
1768 Thu Oct 21 13:55:11 EDT 1993
1769 Give more meaningful error message (then "unexpected character in
1770 cds") when constant simplification leads to Infinity or NaN.
1772 Wed Nov 10 15:01:05 EST 1993
1773 libi77: backspace.c: adjust, under -DMSDOS, to cope with MSDOS
1774 text files, as handled by some popular PC C compilers. Beware:
1775 the (defective) libraries associated with these compilers assume lines
1776 end with \r\n (conventional MS-DOS text files) -- and ftell (and
1777 hence the current implementation of backspace) screws up if lines with
1780 Thu Nov 18 09:37:47 EST 1993
1781 Give a better error (than "control stack empty") for an extraneous
1785 Update comments about ftp in "readme from f2c".
1787 Sun Nov 28 17:26:50 EST 1993
1788 Change format of time stamp in version.c to yyyymmdd.
1789 Sort parameter adjustments (or complain of impossible dependencies)
1790 so that dummy arguments are referenced only after being adjusted.
1793 integer a(2) ! a must be adjusted before b
1794 double precision b(a(1),a(2))
1797 Adjust structs for initialized common blocks and equivalence classes
1798 to omit the trailing struct component added to force alignment when
1799 padding already forces the desired alignment. Example:
1809 } z_ = { {0}, {'a', ' ', ' ', ' '} };
1815 } z_ = { {0}, {'a', ' ', ' ', ' '}, (float)0. };
1817 Wed Dec 8 16:24:43 EST 1993
1818 Adjust lex.c to recognize # nnn "filename" lines emitted by cpp;
1819 this affects the file names and line numbers in error messages and
1820 the #line lines emitted under -g.
1821 Under -g, arrange for a file that starts with an executable
1822 statement to have the first #line line indicate line 1, rather
1823 than the line number of the END statement ending the main program.
1824 Adjust fc script to run files ending in .F through /lib/cpp.
1825 Fix bug ("Impossible tag 2") in
1826 if (t .eq. (0,2)) write(*,*) 'Bug!'
1828 libi77: iio.c: adjust internal formatted reads to treat short records
1829 as though padded with blanks (rather than causing an "off end of record"
1832 Wed Dec 15 15:19:15 EST 1993
1833 fc: adjusted for .F files to pass -D and -I options to cpp.
1835 Fri Dec 17 20:03:38 EST 1993
1836 Fix botch introduced 28 Nov. 1993 in vax.c; change "version of"
1839 Tue Jan 4 15:39:52 EST 1994
1840 msdos/f2cx.exe.Z and msdos/f2c.exe.Z updated (ftp access only).
1842 Wed Jan 19 08:55:19 EST 1994
1845 parameter (Nx = 10, Ny = 20)
1846 parameter (Nz = max(Nx, Ny))
1850 rather than complaining "Declaration error for c: adjustable dimension
1851 on non-argument". The necessary changes cause some hitherto unfolded
1852 constant expressions to be folded.
1853 Accept BYTE as a synonym for INTEGER*1.
1855 Thu Jan 27 08:57:40 EST 1994
1856 Fix botch in changes of 19 Jan. 1994 that broke entry points with
1857 multi-dimensional array arguments that did not appear in the subprogram
1858 argument list and whose leading dimensions depend on arguments.
1860 Mon Feb 7 09:24:30 EST 1994
1861 Remove artifact in "fc" script that caused -O to be ignored:
1863 < # lcc ignores -O...
1865 > CFLAGS="$CFLAGS $O"
1867 Sun Feb 20 17:04:58 EST 1994
1868 Fix bugs reading .P files for routines with arguments of type
1869 INTEGER*1, INTEGER*8, LOGICAL*2.
1870 Fix glitch in reporting inconsistent arguments for routines involving
1871 character arguments: "arg n" had n too large by the number of
1872 character arguments.
1874 Tue Feb 22 20:50:08 EST 1994
1875 Trivial changes to data.c format.c main.c niceprintf.c output.h and
1876 sysdep.h (consistency improvements).
1877 libI77: lread.c: check for NULL return from realloc.
1879 Fri Feb 25 23:56:08 EST 1994
1880 output.c, sysdep.h: arrange for -DUSE_DTOA to use dtoa.c and g_fmt.c
1881 for correctly rounded decimal values on IEEE-arithmetic machines
1882 (plus machines with VAX and IBM-mainframe arithmetic). These
1883 routines are available from netlib's fp directory.
1884 msdos/f2cx.exe.Z and msdos/f2c.exe.Z updated (ftp access only); the
1885 former uses -DUSE_DTOA to keep 12 from printing as 12.000000000000001.
1886 vax.c: fix wrong arguments to badtag and frchain introduced
1888 Source for f2c converted to ANSI/ISO format, with the K&R format
1889 available by compilation with -DKR_headers .
1890 Arrange for (double precision expression) relop (single precision
1891 constant) to retain the single-precision nature of the constant.
1896 Mon Feb 28 11:40:24 EST 1994
1897 README updated to reflect a modification just made to netlib's
1903 > $(CC) -c $(CFLAGS) -DMALLOC=ckalloc -DIEEE... dtoa.c
1905 > (without the initial tab) to the makefile, where IEEE... is one of
1906 > IEEE_MC68k, IEEE_8087, VAX, or IBM, depending on your machine's
1907 > arithmetic. See the comments near the start of dtoa.c.
1910 Sat Mar 5 09:41:52 EST 1994
1911 Complain about functions with the name of a previously declared
1912 common block (which is illegal).
1913 New option -d specifies the directory for output .c and .P files;
1914 f2c.1 and f2c.1t updated. The former undocumented debug option -dnnn
1917 Thu Mar 10 10:21:44 EST 1994
1918 libf77: add #undef min and #undef max lines to s_paus.c s_stop.c
1919 and system_.c; Version.c not changed.
1920 libi77: add -DPad_UDread lines to uio.c and explanation to README:
1921 Some buggy Fortran programs use unformatted direct I/O to write
1922 an incomplete record and later read more from that record than
1923 they have written. For records other than the last, the unwritten
1924 portion of the record reads as binary zeros. The last record is
1925 a special case: attempting to read more from it than was written
1926 gives end-of-file -- which may help one find a bug. Some other
1927 Fortran I/O libraries treat the last record no differently than
1928 others and thus give no help in finding the bug of reading more
1929 than was written. If you wish to have this behavior, compile
1930 uio.c with -DPad_UDread .
1931 Version.c not changed.
1933 Tue Mar 29 17:27:54 EST 1994
1934 Adjust make_param so dimensions involving min, max, and other
1935 complicated constant expressions do not provoke error messages
1936 about adjustable dimensions on non-arguments.
1937 Fix botch introduced 19 Jan 1994: "adjustable dimension on non-
1938 argument" messages could cause some things to be freed twice.
1940 Tue May 10 07:55:12 EDT 1994
1941 Trivial changes to exec.c, p1output.c, parse_args.c, proc.c,
1942 and putpcc.c: change arguments from
1946 for consistency with defs.h. For most compilers, this makes no
1949 Thu Jun 2 12:18:18 EDT 1994
1950 Fix bug in handling FORMAT statements that have adjacent character
1951 (or Hollerith) strings: an extraneous \002 appeared between the
1953 libf77: under -DNO_ONEXIT, arrange for f_exit to be called just
1954 once; previously, upon abnormal termination (including stop statements),
1955 it was called twice.
1957 Mon Jun 6 15:52:57 EDT 1994
1958 libf77: Avoid references to SIGABRT and SIGIOT if neither is defined;
1959 Version.c not changed.
1960 libi77: Add cast to definition of errfl() in fio.h; this only matters
1961 on systems with sizeof(int) < sizeof(long). Under -DNON_UNIX_STDIO,
1962 use binary mode for direct formatted files (to avoid any confusion
1963 connected with \n characters).
1965 Fri Jun 10 16:47:31 EDT 1994
1966 Fix bug under -A in handling unreferenced (and undeclared)
1967 external arguments in subroutines with multiple entry points. Example:
1968 subroutine m(fcn,futil)
1971 entry mintio(i1) ! (D_fp)0 rather than (U_fp)0 for futil
1974 Wed Jun 15 10:38:14 EDT 1994
1975 Allow char(constant expression) function in parameter declarations.
1976 (This was probably broken in the changes of 29 March 1994.)
1978 Fri Jul 1 23:54:00 EDT 1994
1979 Minor adjustments to makefile (rule for f2c.1 commented out) and
1980 sysdep.h (#undef KR_headers if __STDC__ is #defined, and base test
1981 for ANSI_Libraries and ANSI_Prototypes on KR_headers rather than
1982 __STDC__); version.c touched but not changed.
1983 libi77: adjust fp.h so local.h is only needed under -DV10;
1984 Version.c not changed.
1986 Tue Jul 5 03:05:46 EDT 1994
1987 Fix segmentation fault in
1988 subroutine foo(a,b,k)
1990 double precision a(k,1) ! sequence error: must precede data
1993 libi77: Fix bug (introduced 6 June 1994?) in reopening files under
1995 Fix some error messages caused by illegal Fortran. Examples:
1997 x(i) = 0 !Missing declaration for array x
1998 call f(x) !Said Impossible storage class 8 in routine mkaddr
1999 end !Now says invalid use of statement function x
2001 f = g !No declaration for g; by default it's a real variable
2002 call g !Said invalid class code 2 for function g
2003 end !Now says g cannot be called
2005 intrinsic foo !Invalid intrinsic name
2006 a = foo(b) !Said intrcall: bad intrgroup 0
2007 end !Now just complains about line 1
2009 Tue Jul 5 11:14:26 EDT 1994
2010 Fix glitch in handling erroneous statement function declarations.
2012 a(j(i) - i) = a(j(i) - i) + 1 ! bad statement function
2013 call foo(a(3)) ! Said Impossible type 0 in routine mktmpn
2014 end ! Now warns that i and j are not used
2016 Wed Jul 6 17:31:25 EDT 1994
2017 Tweak test for statement functions that (illegally) call themselves;
2018 f2c will now proceed to check for other errors, rather than bailing
2019 out at the first recursive statement function reference.
2020 Warn about but retain divisions by 0 (instead of calling them
2021 "compiler errors" and quiting). On IEEE machines, this permits
2022 double precision nan, ninf, pinf
2026 write(*,*) 'nan, pinf, ninf = ', nan, pinf, ninf
2029 nan, pinf, ninf = NaN Infinity -Infinity
2030 libi77: wref.c: protect with #ifdef GOOD_SPRINTF_EXPONENT an
2031 optimization that requires exponents to have 2 digits when 2 digits
2032 suffice. lwrite.c wsfe.c (list and formatted external output):
2033 omit ' ' carriage-control when compiled with -DOMIT_BLANK_CC .
2034 Off-by-one bug fixed in character count for list output of character
2035 strings. Omit '.' in list-directed printing of Nan, Infinity.
2037 Mon Jul 11 13:05:33 EDT 1994
2040 Tue Jul 12 10:24:42 EDT 1994
2041 libi77: wrtfmt.c: under G11.4, write 0. as " .0000 " rather
2044 Thu Jul 14 17:55:46 EDT 1994
2045 Fix glitch in changes of 6 July 1994 that could cause erroneous
2046 "division by zero" warnings (or worse). Example:
2049 a = a / y ! erroneous warning of division by zero
2052 Mon Aug 1 16:45:17 EDT 1994
2053 libi77: lread.c rsne.c: for benefit of systems with a buggy stdio.h,
2054 declare ungetc when neither KR_headers nor ungetc is #defined.
2055 Version.c not changed.
2057 Wed Aug 3 01:53:00 EDT 1994
2058 libi77: lwrite.c (list output): do not insert a newline when
2059 appending an oversize item to an empty line.
2061 Mon Aug 8 00:51:01 EDT 1994
2062 Fix bug (introduced 3 Feb. 1993) that, under -i2, kept LOGICAL*2
2063 variables from appearing in INQUIRE statements. Under -I2, allow
2064 LOGICAL*4 variables to appear in INQUIRE. Fix intrinsic function
2065 LEN so it returns a short value under -i2, a long value otherwise.
2066 exec.c: fix obscure memory fault possible with bizarre (and highly
2067 erroneous) DO-loop syntax.
2069 Fri Aug 12 10:45:57 EDT 1994
2070 libi77: fix glitch that kept ERR= (in list- or format-directed input)
2071 from working after a NAMELIST READ.
2073 Thu Aug 25 13:58:26 EDT 1994
2074 Suppress -s when -C is specified.
2075 Give full pathname (netlib@research.att.com) for netlib in readme and
2078 Wed Sep 7 22:13:20 EDT 1994
2079 libi77: typesize.c: adjust to allow types LOGICAL*1, LOGICAL*2,
2080 INTEGER*1, and (under -DAllow_TYQUAD) INTEGER*8 in NAMELISTs.
2082 Fri Sep 16 17:50:18 EDT 1994
2083 Change name adjustment for reserved words: instead of just appending
2084 "_" (a single underscore), append "_a_" to local variable names to avoid
2085 trouble when a common block is named a reserved word and the same
2086 reserved word is also a local variable name. Example:
2087 common /const/ a,b,c
2089 equivalence (const(1),a)
2092 Arrange for ichar() to treat characters as unsigned.
2093 libf77: s_cmp.c: treat characters as unsigned in comparisons.
2094 These changes for unsignedness only matter for strings that contain
2095 non-ASCII characters. Now ichar() should always be >= 0.
2097 Sat Sep 17 11:19:32 EDT 1994
2098 fc: set rc=$? before exit (to get exit code right in trap code).
2100 Mon Sep 19 17:49:43 EDT 1994
2101 libf77: s_paus.c: flush stderr after PAUSE; add #ifdef MSDOS stuff.
2102 libi77: README: point out general need for -DMSDOS under MS-DOS.
2104 Tue Sep 20 11:42:30 EDT 1994
2105 Fix bug in comparing identically named common blocks, in which
2106 all components have the same names and types, but at least one is
2107 dimensioned (1) and the other is not dimensioned. Example:
2110 a=1. !!! translated correctly to ab_1.a = (float)1.;
2114 a(1)=2. !!! translated erroneously to ab_1.a[0] = (float)2.
2117 Tue Sep 27 23:47:34 EDT 1994
2118 Fix bug introduced 16 Sept. 1994: don't add _a_ to C keywords
2119 used as external names. In fact, return to earlier behavior of
2120 appending __ to C keywords unless they are used as external names,
2121 in which case they get just one underscore appended.
2122 Adjust constant handling so integer and logical PARAMETERs retain
2123 type information, particularly under -I2. Example:
2133 PARAMETER (L=.FALSE., L1=.FALSE., L2=.FALSE., L4=.FALSE.)
2134 PARAMETER (I=0,I1=0,I2=0,I4=0)
2135 CALL DUMMY(I, I1, I2, I4, L, L1, L2, L4)
2137 f2c.1t: Change f\^2c to f2c (omit half-narrow space) in line following
2138 ".SH NAME" for benefit of systems that cannot cope with troff commands
2141 Wed Sep 28 12:45:19 EDT 1994
2142 libf77: s_cmp.c fix glitch in -DKR_headers version introduced
2145 Thu Oct 6 09:46:53 EDT 1994
2146 libi77: util.c: omit f__mvgbt (which is never used).
2147 f2c.h: change "long" to "long int" to facilitate the adjustments
2148 by means of sed described above. Comment out unused typedef of Long.
2150 Fri Oct 21 18:02:24 EDT 1994
2151 libf77: add s_catow.c and adjust README to point out that changing
2152 "s_cat.o" to "s_catow.o" in the makefile will permit the target of a
2153 concatenation to appear on its right-hand side (contrary to the
2154 Fortran 77 Standard and at the cost of some run-time efficiency).
2156 Wed Nov 2 00:03:58 EST 1994
2157 Adjust -g output to contain only one #line line per statement,
2158 inserting \ before the \n ending lines broken because of their
2159 length [this insertion was recanted 10 Dec. 1994]. This change
2160 accommodates an idiocy in the ANSI/ISO C standard, which leaves
2161 undefined the behavior of #line lines that occur within the arguments
2164 Wed Nov 2 14:44:27 EST 1994
2165 libi77: under compilation with -DALWAYS_FLUSH, flush buffers at
2166 the end of each write statement, and test (via the return from
2167 fflush) for write failures, which can be caught with an ERR=
2168 specifier in the write statement. This extra flushing slows
2169 execution, but can abort execution or alter the flow of control
2170 when a disk fills up.
2171 f2c/src/io.c: Add ERR= test to e_wsle invocation (end of
2172 list-directed external output) to catch write failures when libI77
2173 is compiled with -DALWAYS_FLUSH.
2175 Thu Nov 3 10:59:13 EST 1994
2176 Fix bug in handling dimensions involving certain intrinsic
2177 functions of constant expressions: the expressions, rather than
2178 pointers to them, were passed. Example:
2179 subroutine subtest(n,x)
2180 real x(2**n,n) ! pow_ii(2,n) was called; now it's pow_ii(&c__2,n)
2184 Tue Nov 8 23:56:30 EST 1994
2185 malloc.c: remove assumption that only malloc calls sbrk. This
2186 appears to make malloc.c useful on RS6000 systems.
2188 Sun Nov 13 13:09:38 EST 1994
2189 Turn off constant folding of integers used in floating-point
2190 expressions, so the assignment in
2193 x = x*1000000*500000
2196 *x = *x * 1000000 * 500000;
2200 Sat Dec 10 16:31:40 EST 1994
2201 Supply a better error message (than "Impossible type 14") for
2205 Under -g, convey name of included files to #line lines.
2206 Recant insertion of \ introduced (under -g) 2 Nov. 1994.
2208 Thu Dec 15 14:33:55 EST 1994
2209 New command-line option -Idir specifies directories in which to
2210 look for non-absolute include files (after looking in the directory
2211 of the current input file). There can be several -Idir options, each
2212 specifying one directory. All -Idir options are considered, from
2213 left to right, until a suitably named file is found. The -I2 and -I4
2214 command-line options have precedence, so directories named 2 or 4
2215 must be spelled by some circumlocation, such as -I./2 .
2216 f2c.ps updated to mention the new -Idir option, correct a typo,
2217 and bring the man page at the end up to date.
2218 lex.c: fix bug in reading line numbers in #line lines.
2219 fc updated to pass -Idir options to f2c.
2221 Thu Dec 29 09:48:03 EST 1994
2222 Fix bug (e.g., addressing fault) in diagnosing inconsistency in
2223 the type of function eta in the following example:
2225 double complex foo,c1,c2
2226 double precision eta
2230 double complex eta,c1,c2
2234 Mon Jan 2 13:27:26 EST 1995
2235 Retain casts for SNGL (or FLOAT) that were erroneously optimized
2238 double precision a,b
2239 a = float(b) ! now rendered as *a = (real) (*b);
2241 Use float (rather than double) temporaries in certain expressions
2242 of type complex. Example: the temporary for sngl(b) in
2245 a = sngl(b) - (3.,4.)
2246 is now of type float.
2248 Fri Jan 6 00:00:27 EST 1995
2249 Adjust intrinsic function cmplx to act as dcmplx (returning
2250 double complex rather than complex) if either of its args is of
2251 type double precision. The double temporaries used prior to 2 Jan.
2252 1995 previously gave it this same behavior.
2254 Thu Jan 12 12:31:35 EST 1995
2255 Adjust -krd to use double temporaries in some calculations of
2257 libf77: pow_[dhiqrz][hiq].c: adjust x**i to work on machines
2258 that sign-extend right shifts when i is the most negative integer.
2260 Wed Jan 25 00:14:42 EST 1995
2261 Fix memory fault in handling overlapping initializations in
2264 double precision d(3)
2267 equivalence (d(3),r(1)), (d(1),v(1))
2268 data v/'abcdef', 'ghijkl', 'mnopqr', 'stuvwx'/
2271 names.c: add "far", "huge", "near" to c_keywords (causing them
2272 to have __ appended when used as local variables).
2273 libf77: add s_copyow.c, an alternative to s_copy.c for handling
2274 (illegal) character assignments where the right- and left-hand
2275 sides overlap, as in a(2:4) = a(1
\1a:3).
2277 Thu Jan 26 14:21:19 EST 1995
2278 libf77: roll s_catow.c and s_copyow.c into s_cat.c and s_copy.c,
2279 respectively, allowing the left-hand side of a character assignment
2280 to appear on its right-hand side unless s_cat.c and s_copy.c are
2281 compiled with -DNO_OVERWRITE (which is a bit more efficient).
2282 Fortran 77 forbids the left-hand side from participating in the
2283 right-hand side (of a character assignment), but Fortran 90 allows it.
2284 libi77: wref.c: fix glitch in printing the exponent of 0 when
2285 GOOD_SPRINTF_EXPONENT is not #defined.
2287 Fri Jan 27 12:25:41 EST 1995
2288 Under -C++ -ec (or -C++ -e1c), surround struct declarations with
2296 (This isn't needed with cfront, but apparently is necessary with
2297 some other C++ compilers.)
2298 libf77: minor tweak to s_copy.c: copy forward whenever possible
2299 (for better cache behavior).
2301 Wed Feb 1 10:26:12 EST 1995
2302 Complain about parameter statements that assign values to dummy
2308 Sat Feb 4 20:22:02 EST 1995
2309 fc: omit "lib=/lib/num/lib.lo".
2311 Wed Feb 8 08:41:14 EST 1995
2312 Minor changes to exec.c, putpcc.c to avoid "bad tag" or "error
2313 in frexpr" with certain invalid Fortran.
2315 Sat Feb 11 08:57:39 EST 1995
2316 Complain about integer overflows, both in simplifying integer
2317 expressions, and in converting integers from decimal to binary.
2318 Fix a memory fault in putcx1() associated with invalid input.
2320 Thu Feb 23 11:20:59 EST 1995
2321 Omit MAXTOKENLEN; realloc token if necessary (to handle very long
2324 Fri Feb 24 11:02:00 EST 1995
2325 libi77: iio.c: z_getc: insert (unsigned char *) to allow internal
2326 reading of characters with high-bit set (on machines that sign-extend
2329 Tue Mar 14 18:22:42 EST 1995
2330 Fix glitch (in io.c) in handling 0-length strings in format
2333 10 format(' ab','','cd')
2334 libi77: lread.c and rsfe.c: adjust s_rsle and s_rsfe to check for
2335 end-of-file (to prevent infinite loops with empty read statements).
2337 Wed Mar 22 10:01:46 EST 1995
2338 f2c.ps: adjust discussion of -P on p. 7 to reflect a change made
2339 3 Feb. 1993: -P no longer implies -A.
2341 Fri Apr 21 18:35:00 EDT 1995
2342 fc script: remove absolute paths (since PATH specifies only standard
2343 places). On most systems, it's still necessary to adjust the PATH
2344 assignment at the start of fc to fit the local conventions.
2346 Fri May 26 10:03:17 EDT 1995
2347 fc script: add recognition of -P and .P files.
2348 libi77: iio.c: z_wnew: fix bug in handling T format items in internal
2349 writes whose last item is written to an earlier position than some
2352 Wed May 31 11:39:48 EDT 1995
2353 libf77: added subroutine exit(rc) (with integer return code rc),
2354 which works like a stop statement but supplies rc as the program's
2357 Fri Jun 2 11:56:50 EDT 1995
2362 This now elicits two error messages; the second ("too many
2363 initializers"), though not desirable, seems hard to eliminate
2364 without considerable hassle.
2366 Mon Jul 17 23:24:20 EDT 1995
2367 Fix botch in simplifying constants in certain complex
2368 expressions. Example:
2371 double precision s, M, P
2372 parameter ( M = 100.d0, P = 2.d0 )
2373 z = M * M / s * dcmplx (1.d0, P/M)
2374 *** The imaginary part of z was miscomputed ***
2376 Under -ext, complain about nonintegral dimensions.
2378 Fri Jul 21 11:18:36 EDT 1995
2379 Fix glitch on line 159 of init.c: change
2380 "(shortlogical *)0)",
2382 "(shortlogical *)0",
2383 This affects multiple entry points when some but not all have
2384 arguments of type logical*2.
2385 libi77: adjust lwrite.c, wref.c, wrtfmt.c so compiling with
2386 -DWANT_LEAD_0 causes formatted writes of floating-point numbers of
2387 magnitude < 1 to have an explicit 0 before the decimal point (if the
2388 field-width permits it). Note that the Fortran 77 Standard leaves it
2389 up to the implementation whether to supply these superfluous zeros.
2391 Tue Aug 1 09:25:56 EDT 1995
2392 Permit real (or double precision) parameters in dimension expressions.
2394 Mon Aug 7 08:04:00 EDT 1995
2395 Append "_eqv" rather than just "_" to names that appear in
2396 EQUIVALENCE statements as well as structs in f2c.h (to avoid a
2397 conflict when these names also name common blocks).
2399 Tue Aug 8 12:49:02 EDT 1995
2400 Modify yesterday's change: merge st_fields with c_keywords, to
2401 cope with equivalences introduced to permit initializing numeric
2402 variables with character data. DATA statements causing these
2403 equivalences can appear after executable statements, so the only
2404 safe course is to rename all local variable with names in the
2405 former st_fields list. This has the unfortunate side effect that
2406 the common local variable "i" will henceforth be renamed "i__".
2408 Wed Aug 30 00:19:32 EDT 1995
2409 libf77: add F77_aloc, now used in s_cat and system_ (to allocate
2410 memory and check for failure in so doing).
2411 libi77: improve MSDOS logic in backspace.c.
2413 Wed Sep 6 09:06:19 EDT 1995
2414 libf77: Fix return type of system_ (integer) under -DKR_headers.
2415 libi77: Move some f_init calls around for people who do not use
2416 libF77's main(); now open and namelist read statements that are the
2417 first I/O statements executed should work right in that context.
2418 Adjust namelist input to treat a subscripted name whose subscripts do
2419 not involve colons similarly to the name without a subscript: accept
2420 several values, stored in successive elements starting at the
2421 indicated subscript. Adjust namelist output to quote character
2422 strings (avoiding confusion with arrays of character strings).
2424 Thu Sep 7 00:36:04 EDT 1995
2425 Fix glitch in integer*8 exponentiation function: it's pow_qq, not
2427 libi77: fix some bugs with -DAllow_TYQUAD (for integer*8); when
2428 looking for the &name that starts NAMELIST input, treat lines whose
2429 first nonblank character is something other than &, $, or ? as
2430 comment lines (i.e., ignore them), unless rsne.c is compiled with
2431 -DNo_Namelist_Comments.
2433 Thu Sep 7 09:05:40 EDT 1995
2434 libi77: rdfmt.c: one more tweak for -DAllow_TYQUAD.
2436 Tue Sep 19 00:03:02 EDT 1995
2437 Adjust handling of floating-point subscript bounds (a questionable
2438 f2c extension) so subscripts in the generated C are of integral type.
2439 Move #define of roundup to proc.c (where its use is commented out);
2440 version.c left at 19950918.
2442 Wed Sep 20 17:24:19 EDT 1995
2443 Fix bug in handling ichar() under -h.
2445 Thu Oct 5 07:52:56 EDT 1995
2446 libi77: wrtfmt.c: fix bug with t editing (f__cursor was not always
2449 Tue Oct 10 10:47:54 EDT 1995
2450 Under -ext, warn about X**-Y and X**+Y. Following the original f77,
2451 f2c treats these as X**(-Y) and X**(+Y), respectively. (They are not
2452 allowed by the official Fortran 77 Standard.) Some Fortran compilers
2453 give a bizarre interpretation to larger contexts, making multiplication
2454 noncommutative: they treat X**-Y*Z as X**(-Y*Z) rather than X**(-Y)*Z,
2455 which, following the rules of Fortran 77, is the same as (X**(-Y))*Z.
2457 Wed Oct 11 13:27:05 EDT 1995
2458 libi77: move defs of f__hiwater, f__svic, f__icptr from wrtfmt.c
2459 to err.c. This should work around a problem with buggy loaders and
2460 sometimes leads to smaller executable programs.
2462 Sat Oct 21 23:54:22 EDT 1995
2463 Under -h, fix bug in the treatment of ichar('0') in arithmetic
2465 Demote to -dneg (a new command-line option not mentioned in the
2466 man page) imitation of the original f77's treatment of unary minus
2467 applied to a REAL operand (yielding a DOUBLE PRECISION result).
2468 Previously this imitation (which was present for debugging) occurred
2469 under (the default) -!R. It is still suppressed by -R.
2471 Tue Nov 7 23:52:57 EST 1995
2472 Adjust assigned GOTOs to honor SAVE declarations.
2473 Add comments about ranlib to lib[FI]77/README and makefile.
2475 Tue Dec 19 22:54:06 EST 1995
2476 libf77: s_cat.c: fix bug when 2nd or later arg overlaps lhs.
2478 Tue Jan 2 17:54:00 EST 1996
2479 libi77: rdfmt.c: move #include "ctype.h" up before "stdlib.h"; no
2480 change to Version.c.
2482 Sun Feb 25 22:20:20 EST 1996
2483 Adjust expr.c to permit raising the integer constants 1 and -1 to
2484 negative constant integral powers.
2485 Avoid faulting when -T and -d are not followed by a directory name
2486 (immediately, without intervening spaces).
2488 Wed Feb 28 12:49:01 EST 1996
2489 Fix a glitch in handling complex parameters assigned a "wrong" type.
2492 parameter(z = (0d0,0d0))
2493 data d/z/ ! elicited "non-constant initializer"
2497 Thu Feb 29 00:53:12 EST 1996
2498 Fix bug in handling character parameters assigned a char() value.
2502 parameter(esc = char(27))
2504 data (b(i:i),i=1,2)/esc,'a'/
2505 data (c(i:i),i=1,2)/esc,'b'/ ! memory fault
2509 Fri Mar 1 23:44:51 EST 1996
2510 Fix glitch in evaluating .EQ. and .NE. when both operands are
2511 logical constants (.TRUE. or .FALSE.).
2513 Fri Mar 15 17:29:54 EST 1996
2514 libi77: lread.c, rsfe.c: honor END= in READ stmts with empty iolist.
2516 Tue Mar 19 23:08:32 EST 1996
2517 lex.c: arrange for a "statement" consisting of a single short bogus
2518 keyword to elicit an error message showing the whole keyword. The
2519 error message formerly omitted the last letter of the bad keyword.
2520 libf77: s_cat.c: supply missing break after overlap detection.
2522 Mon May 13 23:35:26 EDT 1996
2523 Recognize Fortran 90's /= as a synonym for .NE.. (<> remains a
2525 Emit an empty int function of no arguments to supply an external
2526 name to named block data subprograms (so they can be called somewhere
2527 to force them to be loaded from a library).
2528 Fix bug (memory fault) in handling the following illegal Fortran:
2532 Treat cdabs, cdcos, cdexp, cdlog, cdsin, and cdsqrt as synonyms for
2533 the double complex intrinsics zabs, zcos, zexp, zlog, zsin, and zsqrt,
2534 respectively, unless -cd is specified.
2535 Recognize the Fortran 90 bit-manipulation intrinsics btest, iand,
2536 ibclr, ibits, ibset, ieor, ior, ishft, and ishftc, unless -i90 is
2537 specified. Note that iand, ieor, and ior are thus now synonyms for
2538 "and", "xor", and "or", respectively.
2539 Add three macros (bit_test, bit_clear, bit_set) to f2c.h for use
2540 with btest, ibclr, and ibset, respectively. Add new functions
2541 [lq]bit_bits, [lq]bit_shift, and [lq]_bit_cshift to libF77 for
2542 use with ibits, ishft, and ishftc, respectively.
2543 Add integer function ftell(unit) (returning -1 on error) and
2544 subroutine fseek(unit, offset, whence, *) to libI77 (with branch to
2547 Tue May 14 23:21:12 EDT 1996
2548 Fix glitch (possible memory fault, or worse) in handling multiple
2549 entry points with names over 28 characters long.
2551 Mon Jun 10 01:20:16 EDT 1996
2552 Update netlib E-mail and ftp addresses in f2c/readme and
2553 f2c/src/readme (which are different files) -- to reflect the upcoming
2555 libf77: trivial tweaks to F77_aloc.c and system_.c; Version.c not
2557 libi77: Adjust rsli.c and lread.c so internal list input with too
2558 few items in the input string will honor end= .
2560 Mon Jun 10 22:59:57 EDT 1996
2561 Add Bits_per_Byte to sysdep.h and adjust definition of Table_size
2562 to depend on Bits_per_Byte (forcing Table_size to be a power of 2); in
2563 lex.c, change "comstart[c & 0xfff]" to "comstart[c & (Table_size-1)]"
2564 to avoid an out-of-range subscript on end-of-file.
2566 Wed Jun 12 00:24:28 EDT 1996
2567 Fix bug in output.c (dereferencing a freed pointer) revealed in
2568 print * !np in out_call in output.c clobbered by free
2569 end !during out_expr.
2571 Wed Jun 19 08:12:47 EDT 1996
2572 f2c.h: add types uinteger, ulongint (for libF77); add qbit_clear
2573 and qbit_set macros (in a commented-out section) for integer*8.
2574 For integer*8, use qbit_clear and qbit_set for ibclr and ibset.
2575 libf77: add casts to unsigned in [lq]bitshft.c.
2577 Thu Jun 20 13:30:43 EDT 1996
2578 Complain at character*(*) in common (rather than faulting).
2579 Fix bug in recognizing hex constants that start with "16#" (e.g.,
2580 16#1234abcd, which is a synonym for z'1234abcd').
2581 Fix bugs in constant folding of expressions involving btest, ibclr,
2583 Fix bug in constant folding of rshift(16#80000000, -31) (on a 32-bit
2584 machine; more generally, the bug was in constant folding of
2585 rshift(ibset(0,NBITS-1), 1-NBITS) when f2c runs on a machine with
2586 long ints having NBITS bits.
2588 Mon Jun 24 07:58:53 EDT 1996
2589 Adjust struct Literal and newlabel() function to accommodate huge
2590 source files (with more than 32767 newlabel() invocations).
2591 Omit .c file when the .f file has a missing final end statement.
2593 Wed Jun 26 14:00:02 EDT 1996
2594 libi77: Add discussion of MXUNIT (highest allowed Fortran unit number)
2597 Fri Jun 28 14:16:11 EDT 1996
2598 Fix glitch with -onetrip: the temporary variable used for nonconstant
2599 initial loop variable values was recycled too soon. Example:
2601 call foo(i+1) ! temp for j+1 was reused here
2605 Tue Jul 2 16:11:27 EDT 1996
2606 formatdata.c: add a 0 to the end of the basetype array (for TYBLANK)
2607 (an omission that was harmless on most machines).
2608 expr.c: fix a dereference of NULL that was only possible with buggy
2610 subroutine $sub(s) ! the '$' is erroneous
2615 Sat Jul 6 00:44:56 EDT 1996
2616 Fix glitch in the intrinsic "real" function when applied to a
2617 complex (or double complex) variable and passed as an argument to
2618 some intrinsic functions. Example:
2622 Fix glitch (only visible if you do not use f2c's malloc and the
2623 malloc you do use is defective in the sense that malloc(0) returns 0)
2624 in handling include files that end with another include (perhaps
2625 followed by comments).
2626 Fix glitch with character*(*) arguments named "h" and "i" when
2627 the body of the subroutine invokes the intrinsic LEN function.
2628 Arrange that after a previous "f2c -P foo.f" has produced foo.P,
2629 running "f2c foo.P foo.f" will produce valid C when foo.f contains
2634 Specifically, the length argument in "call sub" is now suppressed.
2635 With or without foo.P, it is also now suppressed when the order of
2636 subprograms in file foo.f is reversed:
2641 Adjust copyright notices to reflect AT&T breakup.
2643 Wed Jul 10 09:25:49 EDT 1996
2644 Fix bug (possible memory fault) in handling erroneously placed
2645 and inconsistent declarations. Example that faulted:
2651 integer m(2) ! should be before data
2653 Fix bug (possible fault) in handling illegal "if" constructions.
2654 Example (that faulted):
2656 if (i) then ! bug: i is integer, not logical
2657 else if (j) then ! bug: j is integer, not logical
2660 Fix glitch with character*(*) argument named "ret_len" to a
2661 character*(*) function.
2663 Wed Jul 10 23:04:16 EDT 1996
2664 Fix more glitches in the intrinsic "real" function when applied to a
2665 complex (or double complex) variable and passed as an argument to
2666 some intrinsic functions. Example:
2668 r = sqrt(real(conjg(a))) + sqrt(real(a*b))
2671 Thu Jul 11 17:27:16 EDT 1996
2672 Fix a memory fault associated with complicated, illegal input.
2676 call foo(a) ! inconsistent with subsequent def and call
2683 Wed Jul 17 19:18:28 EDT 1996
2684 Fix yet another case of intrinsic "real" applied to a complex
2687 x = sqrt(real(a(2))) ! gave error message about bad tag
2690 Mon Aug 26 11:28:57 EDT 1996
2691 Tweak sysdep.c for non-Unix systems in which process ID's can be
2694 Tue Aug 27 08:31:32 EDT 1996
2695 Adjust the ishft intrinsic to use unsigned right shifts. (Previously,
2696 a negative constant second operand resulted in a possibly signed shift.)
2698 Thu Sep 12 14:04:07 EDT 1996
2699 equiv.c: fix glitch with -DKR_headers.
2700 libi77: fmtlib.c: fix bug in printing the most negative integer.
2702 Fri Sep 13 08:54:40 EDT 1996
2703 Diagnose some illegal appearances of substring notation.
2705 Tue Sep 17 17:48:09 EDT 1996
2706 Fix fault in handling some complex parameters. Example:
2709 parameter(b = (0,1))
2710 a = b ! f2c faulted here
2713 Thu Sep 26 07:47:10 EDT 1996
2714 libi77: fmt.h: for formatted writes of negative integer*1 values,
2715 make ic signed on ANSI systems. If formatted writes of integer*1
2716 values trouble you when using a K&R C compiler, switch to an ANSI
2717 compiler or use a compiler flag that makes characters signed.
2719 Tue Oct 1 14:41:36 EDT 1996
2720 Give a better error message when dummy arguments appear in data
2723 Thu Oct 17 13:37:22 EDT 1996
2724 Fix bug in typechecking arguments to character and complex (or
2725 double complex) functions; the bug could cause length arguments
2726 for character arguments to be omitted on invocations appearing
2727 textually after the first invocation. For example, in
2731 call goo(zot(c), zot(c))
2733 the length was omitted from the second invocation of zot, and
2734 there was an erroneous error message about inconsistent calling
2737 Wed Dec 4 13:59:14 EST 1996
2739 subroutine test(cdum,rdum)
2741 rdum=cos(real(cdum)) ! "Unexpected tag 3 in opconv_fudge"
2743 Fix glitch in parsing "DO 10 D0 = 1, 10".
2744 Fix glitch in parsing
2746 real*8 x ! erroneous "incompatible type" message
2750 Mon Dec 9 23:15:02 EST 1996
2751 Fix glitch in parameter adjustments for arrays whose lower
2752 bound depends on a scalar argument. Example:
2753 subroutine bug(p,z,m,n)
2755 double precision p(z(m):z(m) + n) ! p_offset botched
2756 call foo(p(0), p(n))
2758 libi77: complain about non-positive rec= in direct read and write
2760 libf77: trivial adjustments; Version.c not changed.
2762 Wed Feb 12 00:18:03 EST 1997
2763 output.c: fix (seldom problematic) glitch in out_call: put parens
2764 around the ... in a test of the form "if (q->tag == TADDR && ...)".
2765 vax.c: fix bug revealed in the "psi_offset =" assignment in the
2767 subroutine foo(psi,m)
2770 double precision psi(z(m):z(m) + 10)
2771 call foo(m+1, psi(0),psi(10))
2774 Mon Feb 24 23:44:54 EST 1997
2775 For consistency with f2c's current treatment of adjacent character
2776 strings in FORMAT statements, recognize a Hollerith string following
2777 a string (and merge adjacent strings in FORMAT statements).
2779 Wed Feb 26 13:41:11 EST 1997
2780 New libf2c.zip, a combination of the libf77 and libi77 bundles (and
2781 available only by ftp).
2782 libf77: adjust functions with a complex output argument to permit
2783 aliasing it with input arguments. (For now, at least, this is just
2784 for possible benefit of g77.)
2785 libi77: tweak to ftell_.c for systems with strange definitions of
2788 Tue Apr 8 20:57:08 EDT 1997
2789 libf77: [cz]_div.c: tweaks invisible on most systems (that may
2790 improve things slightly with optimized compilation on systems that use
2791 gratuitous extra precision).
2792 libi77: fmt.c: adjust to complain at missing numbers in formats
2793 (but still treat missing ".nnn" as ".0").
2795 Fri Apr 11 14:05:57 EDT 1997
2796 libi77: err.c: attempt to make stderr line buffered rather than
2797 fully buffered. (Buffering is needed for format items T and TR.)
2799 Thu Apr 17 22:42:43 EDT 1997
2800 libf77: add F77_aloc.o to makefile (and makefile.u in libf2c.zip).
2802 Fri Apr 25 19:32:09 EDT 1997
2803 libf77: add [de]time_.c (which may give trouble on some systems).
2805 Tue May 27 09:18:52 EDT 1997
2806 libi77: ftell_.c: fix typo that caused the third argument to be
2807 treated as 2 on some systems.
2809 Mon Jun 9 00:04:37 EDT 1997
2810 libi77 (and libf2c.zip): adjust include order in err.c lread.c wref.c
2811 rdfmt.c to include fmt.h (etc.) after system includes. Version.c not
2814 Mon Jul 21 16:04:54 EDT 1997
2815 proc.c: fix glitch in logic for "nonpositive dimension" message.
2816 libi77: inquire.c: always include string.h (for possible use with
2817 -DNON_UNIX_STDIO); Version.c not changed.
2819 Thu Jul 24 17:11:23 EDT 1997
2820 Tweak "Notice" to reflect the AT&T breakup -- we missed it when
2821 updating the copyright notices in the source files last summer.
2822 Adjust src/makefile so malloc.o is not used by default, but can
2823 be specified with "make MALLOC=malloc.o".
2824 Add comments to src/README about the "CRAY" T3E.
2826 Tue Aug 5 14:53:25 EDT 1997
2827 Add definition of calloc to malloc.c; this makes f2c's malloc
2828 work on some systems where trouble hitherto arose because references
2829 to calloc brought in the system's malloc. (On sensible systems,
2830 calloc is defined separately from malloc. To avoid confusion on
2831 other systems, f2c/malloc.c now defines calloc.)
2832 libi77: lread.c: adjust to accord with a change to the Fortran 8X
2833 draft (in 1990 or 1991) that rescinded permission to elide quote marks
2834 in namelist input of character data; to get the old behavior, compile
2835 with F8X_NML_ELIDE_QUOTES #defined. wrtfmt.o: wrt_G: tweak to print
2836 the right number of 0's for zero under G format.
2838 Sat Aug 16 05:45:32 EDT 1997
2839 libi77: iio.c: fix bug in internal writes to an array of character
2840 strings that sometimes caused one more array element than required by
2841 the format to be blank-filled. Example: format(1x).
2843 Wed Sep 17 00:39:29 EDT 1997
2844 libi77: fmt.[ch] rdfmt.c wrtfmt.c: tweak struct syl for machines
2845 with 64-bit pointers and 32-bit ints that did not 64-bit align
2846 struct syl (e.g., Linux on the DEC Alpha). This change should be
2847 invisible on other machines.
2849 Sun Sep 21 22:05:19 EDT 1997
2850 libf77: [de]time_.c (Unix systems only): change return type to double.