solarisfixes.h

   1 /* Solaris specific fixes */
   2
   3 #if defined(__GNUC__)
   4 #undef isnan
   5 #define isnan(x) \
   6      __extension__({ __typeof (x) __x_a = (x); \
   7      __builtin_expect(__x_a != __x_a, 0); })
   8
   9 #undef isfinite
  10 #define isfinite(x) \
  11      __extension__ ({ __typeof (x) __x_f = (x); \
  12      __builtin_expect(!isnan(__x_f - __x_f), 1); })
  13
  14 #undef isinf
  15 #define isinf(x) \
  16      __extension__ ({ __typeof (x) __x_i = (x); \
  17      __builtin_expect(!isnan(__x_i) && !isfinite(__x_i), 0); })
  18 #endif /* __GNUC__ */