Mercurial > hg > CbC > CbC_gcc
diff libgcc/floatunsidf.c @ 111:04ced10e8804
gcc 7
author | kono |
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date | Fri, 27 Oct 2017 22:46:09 +0900 |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/libgcc/floatunsidf.c Fri Oct 27 22:46:09 2017 +0900 @@ -0,0 +1,15 @@ +/* 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; +}