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
  13 extern int __isinf_internal (double __value)
  14      __attribute__ ((__const__)) attribute_hidden;
  15 extern int __isnan_internal (double __value)
  16      __attribute__ ((__const__)) attribute_hidden;
  17
  18 #ifndef __NO_LONG_DOUBLE_MATH
  19 extern int __finitel_internal (long double __value)
  20      __attribute__ ((__const__)) attribute_hidden;
  21
  22 extern int __isinfl_internal (long double __value)
  23      __attribute__ ((__const__)) attribute_hidden;
  24 extern int __isnanl_internal (long double __value)
  25      __attribute__ ((__const__)) attribute_hidden;
  26 #endif
  27
  28 #if !defined NOT_IN_libc || defined IS_IN_libm
  29 # undef isfinite
  30 # ifdef __NO_LONG_DOUBLE_MATH
  31 #  define isfinite(x) \
  32      (sizeof (x) == sizeof (float)                                            \
  33       ? INTUSE(__finitef) (x) : INTUSE(__finite) (x))
  34 # else
  35 #  define isfinite(x) \
  36      (sizeof (x) == sizeof (float)                                            \
  37       ? INTUSE(__finitef) (x)                                                 \
  38       : sizeof (x) == sizeof (double)                                         \
  39       ? INTUSE(__finite) (x) : INTUSE(__finitel) (x))
  40 # endif
  41 #endif
  42
  43
  44 #endif