diff options
Diffstat (limited to 'math/math.h')
| -rw-r--r-- | math/math.h | 69 |
1 files changed, 36 insertions, 33 deletions
diff --git a/math/math.h b/math/math.h index 51055849ce..0aedaf1d56 100644 --- a/math/math.h +++ b/math/math.h @@ -68,37 +68,37 @@ __BEGIN_DECLS /* Include the file of declarations again, this time using `float' instead of `double' and appending f to each function name. */ -#ifndef _Mfloat_ -# define _Mfloat_ float -#endif -#define _Mdouble_ _Mfloat_ -#ifdef __STDC__ -# define __MATH_PRECNAME(name,r) name##f##r -#else -# define __MATH_PRECNAME(name,r) name/**/f/**/r -#endif -#include <bits/mathcalls.h> -#undef _Mdouble_ -#undef __MATH_PRECNAME - -#if __STDC__ - 0 || __GNUC__ - 0 -/* Include the file of declarations again, this time using `long double' - instead of `double' and appending l to each function name. */ - -# ifndef _Mlong_double_ -# define _Mlong_double_ long double +# ifndef _Mfloat_ +# define _Mfloat_ float # endif -# define _Mdouble_ _Mlong_double_ +# define _Mdouble_ _Mfloat_ # ifdef __STDC__ -# define __MATH_PRECNAME(name,r) name##l##r +# define __MATH_PRECNAME(name,r) name##f##r # else -# define __MATH_PRECNAME(name,r) name/**/l/**/r +# define __MATH_PRECNAME(name,r) name/**/f/**/r # endif # include <bits/mathcalls.h> # undef _Mdouble_ # undef __MATH_PRECNAME -#endif /* __STDC__ || __GNUC__ */ +# if __STDC__ - 0 || __GNUC__ - 0 +/* Include the file of declarations again, this time using `long double' + instead of `double' and appending l to each function name. */ + +# ifndef _Mlong_double_ +# define _Mlong_double_ long double +# endif +# define _Mdouble_ _Mlong_double_ +# ifdef __STDC__ +# define __MATH_PRECNAME(name,r) name##l##r +# else +# define __MATH_PRECNAME(name,r) name/**/l/**/r +# endif +# include <bits/mathcalls.h> +# undef _Mdouble_ +# undef __MATH_PRECNAME + +# endif /* __STDC__ || __GNUC__ */ #endif /* Use misc or ISO C 9X. */ #undef __MATHDECL_1 @@ -118,23 +118,23 @@ extern int signgam; /* Get the architecture specific values describing the floating-point evaluation. The following symbols will get defined: - float_t floating-point type at least as wide as `float' used + 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 + double_t floating-point type at least as wide as `double' used to evaluate `double' expressions - FLT_EVAL_METHOD + FLT_EVAL_METHOD Defined to 0 if `float_t' is `float' and `double_t' is `double' 1 if `float_t' and `double_t' are `double' 2 if `float_t' and `double_t' are `long double' else `float_t' and `double_t' are unspecified - INFINITY representation of the infinity value of type `float_t' + INFINITY representation of the infinity value of type `float' - FP_FAST_FMA - FP_FAST_FMAF - FP_FAST_FMAL + FP_FAST_FMA + FP_FAST_FMAF + FP_FAST_FMAL If defined it indicates that the the `fma' function generally executes about as fast as a multiply and an add. This macro is defined only iff the `fma' function is @@ -143,6 +143,9 @@ extern int signgam; FP_ILOGB0 Expands to a value returned by `ilogb (0.0)'. FP_ILOGBNAN Expands to a value returned by `ilogb (NAN)'. + DECIMAL_DIG Number of decimal digits supported by conversion between + decimal and all internal floating-point formats. + */ # include <bits/mathdef.h> @@ -211,8 +214,8 @@ extern _LIB_VERSION_TYPE _LIB_VERSION; /* In SVID error handling, `matherr' is called with this description of the exceptional condition. - We have a problem when using C++ since `exception' is reserved in - C++. */ + We have a problem when using C++ since `exception' is a reserved + name in C++. */ # ifdef __cplusplus struct __exception # else @@ -307,7 +310,7 @@ extern int matherr __P ((struct exception *__exc)); for unordered numbers. Since many FPUs provide special instructions to support these operations and these tests are defined in <bits/mathinline.h>, we define the generic macros at - this late point. */ + this late point and only if they are not defined yet. */ /* Return nonzero value if X is greater than Y. */ # ifndef isgreater |