diff options
Diffstat (limited to 'gcc/ginclude/float.h')
| -rw-r--r-- | gcc/ginclude/float.h | 39 |
1 files changed, 39 insertions, 0 deletions
diff --git a/gcc/ginclude/float.h b/gcc/ginclude/float.h index 9969f1c..5c472c5 100644 --- a/gcc/ginclude/float.h +++ b/gcc/ginclude/float.h @@ -157,6 +157,45 @@ see the files COPYING3 and COPYING.RUNTIME respectively. If not, see #endif /* C99 */ +#if defined (__STDC_VERSION__) && __STDC_VERSION__ > 199901L +/* Versions of DECIMAL_DIG for each floating-point type. */ +#undef FLT_DECIMAL_DIG +#undef DBL_DECIMAL_DIG +#undef LDBL_DECIMAL_DIG +#define FLT_DECIMAL_DIG __FLT_DECIMAL_DIG__ +#define DBL_DECIMAL_DIG __DBL_DECIMAL_DIG__ +#define LDBL_DECIMAL_DIG __DECIMAL_DIG__ + +/* Whether types support subnormal numbers. */ +#undef FLT_HAS_SUBNORM +#undef DBL_HAS_SUBNORM +#undef LDBL_HAS_SUBNORM +#define FLT_HAS_SUBNORM __FLT_HAS_DENORM__ +#define DBL_HAS_SUBNORM __DBL_HAS_DENORM__ +#define LDBL_HAS_SUBNORM __LDBL_HAS_DENORM__ + +/* Minimum positive values, including subnormals. */ +#undef FLT_TRUE_MIN +#undef DBL_TRUE_MIN +#undef LDBL_TRUE_MIN +#if __FLT_HAS_DENORM__ +#define FLT_TRUE_MIN __FLT_DENORM_MIN__ +#else +#define FLT_TRUE_MIN __FLT_MIN__ +#endif +#if __DBL_HAS_DENORM__ +#define DBL_TRUE_MIN __DBL_DENORM_MIN__ +#else +#define DBL_TRUE_MIN __DBL_MIN__ +#endif +#if __LDBL_HAS_DENORM__ +#define LDBL_TRUE_MIN __LDBL_DENORM_MIN__ +#else +#define LDBL_TRUE_MIN __LDBL_MIN__ +#endif + +#endif /* C1X */ + #ifdef __STDC_WANT_DEC_FP__ /* Draft Technical Report 24732, extension for decimal floating-point arithmetic: Characteristic of decimal floating types <float.h>. */ |