sysdeps/ieee754/dbl-64/wordsize-64/math_private.h

   1 #ifndef _MATH_PRIVATE_H_
   2
   3 #include_next <math_private.h>
   4 #include <stdint.h>
   5
   6 #ifndef __isnan
   7 extern __always_inline int
   8 __isnan (double d)
   9 {
  10   uint64_t di;
  11   EXTRACT_WORDS64 (di, d);
  12   return (di & 0x7fffffffffffffffull) > 0x7ff0000000000000ull;
  13 }
  14 #endif
  15
  16 #ifndef __isinf_ns
  17 extern __always_inline int
  18 __isinf_ns (double d)
  19 {
  20   uint64_t di;
  21   EXTRACT_WORDS64 (di, d);
  22   return (di & 0x7fffffffffffffffull) == 0x7ff0000000000000ull;
  23 }
  24 #endif
  25
  26 #ifndef __finite
  27 extern __always_inline int
  28 __finite (double d)
  29 {
  30   uint64_t di;
  31   EXTRACT_WORDS64 (di, d);
  32   return (di & 0x7fffffffffffffffull) < 0x7ff0000000000000ull;
  33 }
  34 #endif
  35
  36 #endif /* _MATH_PRIVATE_H_ */