diff options
Diffstat (limited to 'math/math.h')
| -rw-r--r-- | math/math.h | 42 |
1 files changed, 40 insertions, 2 deletions
diff --git a/math/math.h b/math/math.h index 75ccfc3bed..70bf8e5ac0 100644 --- a/math/math.h +++ b/math/math.h @@ -54,13 +54,51 @@ __BEGIN_DECLS # endif #endif -/* Get the architecture specific values describing the floating-point - evaluation. The following symbols will get defined: +/* Get __GLIBC_FLT_EVAL_METHOD. */ +#include <bits/flt-eval-method.h> + +#ifdef __USE_ISOC99 +/* Define the following typedefs. float_t floating-point type at least as wide as `float' used to evaluate `float' expressions double_t floating-point type at least as wide as `double' used to evaluate `double' expressions +*/ +# if __GLIBC_FLT_EVAL_METHOD == 0 || __GLIBC_FLT_EVAL_METHOD == 16 +typedef float float_t; +typedef double double_t; +# elif __GLIBC_FLT_EVAL_METHOD == 1 +typedef double float_t; +typedef double double_t; +# elif __GLIBC_FLT_EVAL_METHOD == 2 +typedef long double float_t; +typedef long double double_t; +# elif __GLIBC_FLT_EVAL_METHOD == 32 +typedef _Float32 float_t; +typedef double double_t; +# elif __GLIBC_FLT_EVAL_METHOD == 33 +typedef _Float32x float_t; +typedef _Float32x double_t; +# elif __GLIBC_FLT_EVAL_METHOD == 64 +typedef _Float64 float_t; +typedef _Float64 double_t; +# elif __GLIBC_FLT_EVAL_METHOD == 65 +typedef _Float64x float_t; +typedef _Float64x double_t; +# elif __GLIBC_FLT_EVAL_METHOD == 128 +typedef _Float128 float_t; +typedef _Float128 double_t; +# elif __GLIBC_FLT_EVAL_METHOD == 129 +typedef _Float128x float_t; +typedef _Float128x double_t; +# else +# error "Unknown __GLIBC_FLT_EVAL_METHOD" +# endif +#endif + +/* Get the architecture specific values describing the floating-point + evaluation. The following symbols will get defined: FP_FAST_FMA FP_FAST_FMAF |