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      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 }
     16