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| author | Ulrich Drepper <drepper@gcc.gnu.org> | 2001-01-12 05:28:26 +0000 |
|---|---|---|
| committer | Ulrich Drepper <drepper@gcc.gnu.org> | 2001-01-12 05:28:26 +0000 |
| commit | 165d57cc2516b187ba6116e3fcfc04a3917ba374 (patch) | |
| tree | dd8df3e8f3bd80a98fb38878a00c450ea956d166 /gcc | |
| parent | b660f82f159f6ed9422be8544d3b32ad9ca83a28 (diff) | |
| download | gcc-165d57cc2516b187ba6116e3fcfc04a3917ba374.zip gcc-165d57cc2516b187ba6116e3fcfc04a3917ba374.tar.gz gcc-165d57cc2516b187ba6116e3fcfc04a3917ba374.tar.bz2 | |
Define FLT_EVAL_METHOD and DECIMAL_DIG for C99.
From-SVN: r38936
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/config/float-i386.h | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/gcc/config/float-i386.h b/gcc/config/float-i386.h index 71a90d6..075f2ee 100644 --- a/gcc/config/float-i386.h +++ b/gcc/config/float-i386.h @@ -94,4 +94,31 @@ #undef LDBL_MAX_10_EXP #define LDBL_MAX_10_EXP 4932 +#if __STDC_VERSION__ >= 199901L + /* The floating-point expression evaluation method. + -1 indeterminate + 0 evaluate all operations and constants just to the range and + precision of the type + 1 evaluate operations and constants of type float and double + to the range and precision of the double type, evaluate + long double operations and constants to the range and + precision of the long double type + 2 evaluate all operations and constants to the range and + precision of the long double type + */ +# undef FLT_EVAL_METHOD +# define FLT_EVAL_METHOD 2 + + /* Number of decimal digits to enable rounding to the given number of + decimal digits without loss of precision. + if FLT_RADIX == 10^n: #mantissa * log10 (FLT_RADIX) + else : ceil (1 + #mantissa * log10 (FLT_RADIX)) + where #mantissa is the number of bits in the mantissa of the widest + supported floating-point type. + */ +# undef DECIMAL_DIG +# define DECIMAL_DIG 21 + +#endif /* C99 */ + #endif /* _FLOAT_H___ */ |