freebsd-nq/contrib/gdtoa/gdtoa_fltrnds.h
2009-01-28 04:36:34 +00:00

19 lines
421 B
C

FPI *fpi, fpi1;
int Rounding;
#ifdef Trust_FLT_ROUNDS /*{{ only define this if FLT_ROUNDS really works! */
Rounding = Flt_Rounds;
#else /*}{*/
Rounding = 1;
switch(fegetround()) {
case FE_TOWARDZERO: Rounding = 0; break;
case FE_UPWARD: Rounding = 2; break;
case FE_DOWNWARD: Rounding = 3;
}
#endif /*}}*/
fpi = &fpi0;
if (Rounding != 1) {
fpi1 = fpi0;
fpi = &fpi1;
fpi1.rounding = Rounding;
}