libquadmath/math/isinf_nsq.c

   1 /*
   2  * Written by Ulrich Drepper <drepper@gmail.com>
   3  */
   4
   5 /*
   6  * __quadmath_isinf_nsq (x) returns != 0 if x is ±inf, else 0;
   7  * no branching!
   8  */
   9
  10 #include "quadmath-imp.h"
  11
  12 int
  13 __quadmath_isinf_nsq (__float128 x)
  14 {
  15         int64_t hx,lx;
  16         GET_FLT128_WORDS64(hx,lx,x);
  17         return !(lx | ((hx & 0x7fffffffffffffffLL) ^ 0x7fff000000000000LL));
  18 }
  19