15 lines
330 B
C
15 lines
330 B
C
|
#include <fenv.h>
|
||
|
|
|
||
|
|
/* 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);
|
||
|
|
}
|