gcc/libgcc/floatunsidf.c

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/* Public domain. */
typedef int SItype __attribute__ ((mode (SI)));
typedef unsigned int USItype __attribute__ ((mode (SI)));
typedef float DFtype __attribute__ ((mode (DF)));
DFtype
__floatunsidf (USItype u)
{
SItype s = (SItype) u;
DFtype r = (DFtype) s;
if (s < 0)
r += (DFtype)2.0 * (DFtype) ((USItype) 1
<< (sizeof (USItype) * __CHAR_BIT__ - 1));
return r;
}