Re: [patch, fortran, committed] Document COMPLEX*k syntax quirk.

[Brooks Moses <brooks dot moses at codesourcery dot com>]

Brooks Moses wrote:
> -------------------------------------------------------------------
> 2007-02-22  Brooks Moses  <brooks.moses@codesourcery.com>
>
> 	* gfortran.texi (Old-style kind specifications): Document
> 	special handling of old-style kind specifiers for COMPLEX.
> 	* decl.c (gfc_match_old_kind_spec): Documented kind/bytesize
> 	assumptions in comment.
>
> -------------------------------------------------------------------

I forgot the patch; here it is.

- Brooks
Index: gfortran.texi
===================================================================
--- gfortran.texi       (revision 122237)
+++ gfortran.texi       (working copy)
@@ -837,19 +837,21 @@
 @section Old-style kind specifications
 @cindex Kind specifications

-GNU Fortran allows old-style kind specifications in
-declarations. These look like:
+GNU Fortran allows old-style kind specifications in declarations. These
+look like:
 @smallexample
-      TYPESPEC*k x,y,z
+      TYPESPEC*size x,y,z
 @end smallexample
 where @code{TYPESPEC} is a basic type (@code{INTEGER}, @code{REAL},
-etc.), and where @code{k} is a valid kind number for that type. The
-statement then declares @code{x}, @code{y} and @code{z} to be of
-type @code{TYPESPEC} with kind @code{k}. This is equivalent to the
-standard conforming declaration
+etc.), and where @code{size} is a byte count corresponding to a valid
+kind for that type. The statement then declares @code{x}, @code{y} and
+@code{z} to be of type @code{TYPESPEC} with the appropriate kind. This
+is equivalent to the standard conforming declaration
 @smallexample
       TYPESPEC(k) x,y,z
 @end smallexample
+where @code{k} is equal to @code{size} for most types, but is equal to
+@code{size/2} for the @code{COMPLEX} type.

 @node Old-style variable initialization
 @section Old-style variable initialization
Index: decl.c
===================================================================
--- decl.c      (revision 122237)
+++ decl.c      (working copy)
@@ -1373,7 +1373,9 @@
 }


-/* Match an extended-f77 kind specification.  */
+/* Match an extended-f77 kind specification.  This assumes that the kind
+   number is equal to the byte size for non-COMPLEX types, and equal to
+   half of the byte size for COMPLEX.  */

 match
 gfc_match_old_kind_spec (gfc_typespec *ts)