newlib/libm/common/sf_isinff.c

   1 /*
   2  * __isinff(x) returns 1 if x is +-infinity, else 0;
   3  * Added by Cygnus Support.
   4  */
   5
   6 #include "fdlibm.h"
   7
   8 int
   9 __isinff (float x)
  10 {
  11         __int32_t ix;
  12         GET_FLOAT_WORD(ix,x);
  13         ix &= 0x7fffffff;
  14         return FLT_UWORD_IS_INFINITE(ix);
  15 }
  16
  17 #ifdef _DOUBLE_IS_32BITS
  18
  19 int
  20 __isinfd (double x)
  21 {
  22         return __isinff((float) x);
  23 }
  24
  25 #endif /* defined(_DOUBLE_IS_32BITS) */