diff options
| -rw-r--r-- | gcc/ChangeLog | 5 | ||||
| -rw-r--r-- | gcc/ginclude/float.h | 7 | ||||
| -rw-r--r-- | gcc/testsuite/ChangeLog | 4 | ||||
| -rw-r--r-- | gcc/testsuite/gcc.dg/cr-decimal-dig-1.c | 14 |
4 files changed, 30 insertions, 0 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index e3ec20e..3b5fc9c 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,5 +1,10 @@ 2016-09-19 Joseph Myers <joseph@codesourcery.com> + * ginclude/float.h [__STDC_WANT_IEC_60559_BFP_EXT__] + (CR_DECIMAL_DIG): New macro. + +2016-09-19 Joseph Myers <joseph@codesourcery.com> + * ginclude/stddef.h (max_align_t) [__i386__]: Add __float128 element. diff --git a/gcc/ginclude/float.h b/gcc/ginclude/float.h index de46a27..421f735 100644 --- a/gcc/ginclude/float.h +++ b/gcc/ginclude/float.h @@ -185,6 +185,13 @@ see the files COPYING3 and COPYING.RUNTIME respectively. If not, see #endif /* C11 */ +#ifdef __STDC_WANT_IEC_60559_BFP_EXT__ +/* Number of decimal digits for which conversions between decimal + character strings and binary formats, in both directions, are + correctly rounded. */ +#define CR_DECIMAL_DIG __UINTMAX_MAX__ +#endif + #ifdef __STDC_WANT_IEC_60559_TYPES_EXT__ /* Constants for _FloatN and _FloatNx types from TS 18661-3. See comments above for their semantics. */ diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog index 741ec97..c825702 100644 --- a/gcc/testsuite/ChangeLog +++ b/gcc/testsuite/ChangeLog @@ -1,5 +1,9 @@ 2016-09-19 Joseph Myers <joseph@codesourcery.com> + * gcc.dg/cr-decimal-dig-1.c: New test. + +2016-09-19 Joseph Myers <joseph@codesourcery.com> + * gcc.dg/float128-align.c, gcc.dg/float128x-align.c, gcc.dg/float16-align.c, gcc.dg/float32-align.c, gcc.dg/float32x-align.c, gcc.dg/float64-align.c, diff --git a/gcc/testsuite/gcc.dg/cr-decimal-dig-1.c b/gcc/testsuite/gcc.dg/cr-decimal-dig-1.c new file mode 100644 index 0000000..2bbc40c --- /dev/null +++ b/gcc/testsuite/gcc.dg/cr-decimal-dig-1.c @@ -0,0 +1,14 @@ +/* Test TS 18661-1 CR_DECIMAL_DIG. */ +/* { dg-do compile } */ +/* { dg-options "-std=c11" } */ + +#define __STDC_WANT_IEC_60559_BFP_EXT__ +#include <float.h> + +#ifndef CR_DECIMAL_DIG +#error "CR_DECIMAL_DIG not defined" +#endif + +#if CR_DECIMAL_DIG < DECIMAL_DIG + 3 +#error "CR_DECIMAL_DIG too small" +#endif |