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[Bug c/30013] Multiple flaws in decimal floating-point arithmetic conversions fixed



------- Comment #6 from janis at gcc dot gnu dot org  2007-09-11 01:11 -------
Subject: Bug 30013

Author: janis
Date: Tue Sep 11 01:11:16 2007
New Revision: 128361

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=128361
Log:
gcc/
        PR c/30013
        * config/dfp-bit.c: Don't skip TFmode conversions; move strto*
        declarations to top.
        (DFP_TO_BFP): Use for either XFmode or TFmode.
        (BFP_TO_DFP): Use for either XFmode or TFmode; always use cast
        of BFP_VIA_TYPE.
        * config/dfp-bit.h: Include float.h.
        (LONG_DOUBLE_HAS_XF_MODE, LONG_DOUBLE_HAS_TF_MODE): Define if long
        double is one of these modes, rather than using LIBGCC_HAS_*F_MODE
        which doesn't mean the same thing.
        (BFP_KIND): Use 4 to mean TFmode.
        (BFP_FMT): Specify the number of decimal digits based on the
        number of mantissa digits.
        (BFP_VIA_TYPE): Binary float type to use as cast for sprintf.
        (BFP_TO_DFP, DFP_TO_BFP): Define names for TFmode variants.
        (STR_TO_BFP): Use strtold for XFmode or TFmode.
        (TFtype): Define if TFmode is supported.
        * doc/libgcc.texi (Decimal float library routines): Document
        TF conversion functions.

gcc/testsuite/
        * gcc.dg/dfp/convert-bfp.c: Replace SKIP_LONG_DOUBLE with runtime
        checks for size of long double.
        * gcc.dg/dfp/convert.h: New file.
        * gcc.dg/dfp/convert-bfp-2.c: New test.
        * gcc.dg/dfp/convert-bfp-3.c: Ditto.
        * gcc.dg/dfp/convert-bfp-4.c: Ditto.
        * gcc.dg/dfp/convert-bfp-5.c: Ditto.
        * gcc.dg/dfp/convert-bfp-6.c: Ditto.
        * gcc.dg/dfp/convert-bfp-7.c: Ditto.
        * gcc.dg/dfp/convert-bfp-8.c: Ditto.
        * gcc.dg/dfp/convert-bfp-9.c: Ditto.
        * gcc.dg/dfp/convert-bfp-10.c: Ditto.
        * gcc.dg/dfp/convert-bfp-11.c: Ditto.

Added:
    trunk/gcc/testsuite/gcc.dg/dfp/convert-bfp-10.c
    trunk/gcc/testsuite/gcc.dg/dfp/convert-bfp-11.c
    trunk/gcc/testsuite/gcc.dg/dfp/convert-bfp-2.c
    trunk/gcc/testsuite/gcc.dg/dfp/convert-bfp-3.c
    trunk/gcc/testsuite/gcc.dg/dfp/convert-bfp-4.c
    trunk/gcc/testsuite/gcc.dg/dfp/convert-bfp-5.c
    trunk/gcc/testsuite/gcc.dg/dfp/convert-bfp-6.c
    trunk/gcc/testsuite/gcc.dg/dfp/convert-bfp-7.c
    trunk/gcc/testsuite/gcc.dg/dfp/convert-bfp-8.c
    trunk/gcc/testsuite/gcc.dg/dfp/convert-bfp-9.c
    trunk/gcc/testsuite/gcc.dg/dfp/convert.h
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/config/dfp-bit.c
    trunk/gcc/config/dfp-bit.h
    trunk/gcc/doc/libgcc.texi
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/testsuite/gcc.dg/dfp/convert-bfp.c


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=30013


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