include/math.h

   1 #ifndef _MATH_H
   2
   3 #include <math/math.h>
   4
   5 /* Now define the internal interfaces.  */
   6 extern int __matherr (struct exception *__exc);
   7
   8 extern int __finite_internal (double __value)
   9      __attribute__ ((__const__)) attribute_hidden;
  10 extern int __finitef_internal (float __value)
  11      __attribute__ ((__const__)) attribute_hidden;
  12 extern int __finitel_internal (long double __value)
  13      __attribute__ ((__const__)) attribute_hidden;
  14
  15 #if !defined NOT_IN_libc || defined IS_IN_libm
  16 # undef isfinite
  17 # ifdef __NO_LONG_DOUBLE_MATH
  18 #  define isfinite(x) \
  19      (sizeof (x) == (sizeof (float)                                           \
  20                      ? INTUSE(__finitef) (x) : INTUSE(__finite) (x)))
  21 # else
  22 #  define isfinite(x) \
  23      (sizeof (x) == sizeof (float)                                            \
  24       ? INTUSE(__finitef) (x)                                                 \
  25       : sizeof (x) == sizeof (double)                                         \
  26       ? INTUSE(__finite) (x) : INTUSE(__finitel) (x))
  27 # endif
  28 #endif
  29
  30
  31 #endif