Implement P0258R2 - helper for C++17
[official-gcc.git] / libgcc / floatunsitf.c
blob955d67666c5bb7cbb9b7aac46f57c767e5e4b099
1 /* Public domain. */
2 typedef int SItype __attribute__ ((mode (SI)));
3 typedef unsigned int USItype __attribute__ ((mode (SI)));
4 typedef float TFtype __attribute__ ((mode (TF)));
6 TFtype
7 __floatunsitf (USItype u)
9 SItype s = (SItype) u;
10 TFtype r = (TFtype) s;
11 if (s < 0)
12 r += (TFtype)2.0 * (TFtype) ((USItype) 1
13 << (sizeof (USItype) * __CHAR_BIT__ - 1));
14 return r;