libgcc/floatunsidf.c

   1 /* Public domain.  */
   2 typedef int SItype __attribute__ ((mode (SI)));
   3 typedef unsigned int USItype __attribute__ ((mode (SI)));
   4 typedef float DFtype __attribute__ ((mode (DF)));
   5
   6 DFtype
   7 __floatunsidf (USItype u)
   8 {
   9   SItype s = (SItype) u;
  10   DFtype r = (DFtype) s;
  11   if (s < 0)
  12     r += (DFtype)2.0 * (DFtype) ((USItype) 1
  13                                  << (sizeof (USItype) * __CHAR_BIT__ - 1));
  14   return r;
  15 }