diff options
Diffstat (limited to 'include/math.h')
| -rw-r--r-- | include/math.h | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/include/math.h b/include/math.h index 8759c28bff..2a694300b7 100644 --- a/include/math.h +++ b/include/math.h @@ -5,4 +5,27 @@ /* Now define the internal interfaces. */ extern int __matherr (struct exception *__exc); +extern int __finite_internal (double __value) + __attribute__ ((__const__)) attribute_hidden; +extern int __finitef_internal (float __value) + __attribute__ ((__const__)) attribute_hidden; +extern int __finitel_internal (long double __value) + __attribute__ ((__const__)) attribute_hidden; + +#if !defined NOT_IN_libc || defined IS_IN_libm +# undef isfinite +# ifdef __NO_LONG_DOUBLE_MATH +# define isfinite(x) \ + (sizeof (x) == (sizeof (float) \ + ? INTUSE(__finitef) (x) : INTUSE(__finite) (x))) +# else +# define isfinite(x) \ + (sizeof (x) == sizeof (float) \ + ? INTUSE(__finitef) (x) \ + : sizeof (x) == sizeof (double) \ + ? INTUSE(__finite) (x) : INTUSE(__finitel) (x)) +# endif +#endif + + #endif |