diff options
Diffstat (limited to 'newlib/libc/include')
| -rw-r--r-- | newlib/libc/include/math.h | 34 |
1 files changed, 30 insertions, 4 deletions
diff --git a/newlib/libc/include/math.h b/newlib/libc/include/math.h index e9328c55a..47725de37 100644 --- a/newlib/libc/include/math.h +++ b/newlib/libc/include/math.h @@ -140,11 +140,37 @@ extern double fmod _PARAMS((double, double)); /* ISO C99 types and macros. */ -#ifndef FLT_EVAL_METHOD -#define FLT_EVAL_METHOD 0 -typedef float float_t; -typedef double double_t; +/* FIXME: FLT_EVAL_METHOD should somehow be gotten from float.h (which is hard, + * considering that the standard says the includes it defines should not + * include other includes that it defines) and that value used. (This can be + * solved, but autoconf has a bug which makes the solution more difficult, so + * it has been skipped for now.) */ +#if !defined(FLT_EVAL_METHOD) && defined(__FLT_EVAL_METHOD__) + #define FLT_EVAL_METHOD __FLT_EVAL_METHOD__ + #define __TMP_FLT_EVAL_METHOD #endif /* FLT_EVAL_METHOD */ +#if defined FLT_EVAL_METHOD + #if FLT_EVAL_METHOD == 0 + typedef float float_t; + typedef double double_t; + #elif FLT_EVAL_METHOD == 1 + typedef double float_t; + typedef double double_t; + #elif FLT_EVAL_METHOD == 2 + typedef long double float_t; + typedef long double double_t; + #else + /* Implementation-defined. Assume float_t and double_t have been + * defined previously for this configuration (e.g. config.h). */ + #endif +#else + /* Assume basic definitions. */ + typedef float float_t; + typedef double double_t; +#endif +#if defined(__TMP_FLT_EVAL_METHOD) + #undef FLT_EVAL_METHOD +#endif #define FP_NAN 0 #define FP_INFINITE 1 |