diff options
Diffstat (limited to 'math/math.h')
| -rw-r--r-- | math/math.h | 66 |
1 files changed, 3 insertions, 63 deletions
diff --git a/math/math.h b/math/math.h index dea8dbe1ae..275534be11 100644 --- a/math/math.h +++ b/math/math.h @@ -501,70 +501,10 @@ iszero (__T __val) # endif /* __cplusplus */ #endif /* Use IEC_60559_BFP_EXT. */ -#ifdef __USE_MISC -/* Support for various different standard error handling behaviors. */ -typedef enum -{ - _IEEE_ = -1, /* According to IEEE 754/IEEE 854. */ - _SVID_, /* According to System V, release 4. */ - _XOPEN_, /* Nowadays also Unix98. */ - _POSIX_, - _ISOC_ /* Actually this is ISO C99. */ -} _LIB_VERSION_TYPE; - -/* This variable can be changed at run-time to any of the values above to - affect floating point error handling behavior (it may also be necessary - to change the hardware FPU exception settings). */ -extern _LIB_VERSION_TYPE _LIB_VERSION; -#endif - - -#ifdef __USE_MISC -/* In SVID error handling, `matherr' is called with this description - of the exceptional condition. - - We have a problem when using C++ since `exception' is a reserved - name in C++. */ -# ifdef __cplusplus -struct __exception -# else -struct exception -# endif - { - int type; - char *name; - double arg1; - double arg2; - double retval; - }; - -# ifdef __cplusplus -extern int matherr (struct __exception *__exc) throw (); -# else -extern int matherr (struct exception *__exc); -# endif - -# define X_TLOSS 1.41484755040568800000e+16 - -/* Types of exceptions in the `type' field. */ -# define DOMAIN 1 -# define SING 2 -# define OVERFLOW 3 -# define UNDERFLOW 4 -# define TLOSS 5 -# define PLOSS 6 - -/* SVID mode specifies returning this large value instead of infinity. */ -# define HUGE 3.40282347e+38F - -#else /* !Misc. */ - -# ifdef __USE_XOPEN +#ifdef __USE_XOPEN /* X/Open wants another strange constant. */ -# define MAXFLOAT 3.40282347e+38F -# endif - -#endif /* Misc. */ +# define MAXFLOAT 3.40282347e+38F +#endif /* Some useful constants. */ |