#include /* 7.6.3.1 The fegetround function returns the value of the rounding direction macro representing the current rounding direction. */ int fegetround (void) { unsigned short _cw; __asm__ ("fnstcw %0;" : "=m" (_cw)); return _cw & (FE_TONEAREST | FE_DOWNWARD | FE_UPWARD | FE_TOWARDZERO); }