Legacy Document

fegetround

You can use the fegetround function to save the current rounding direction.

int fegetround (void);

DESCRIPTION

The fegetround function returns an integer that specifies which rounding direction is currently being used. The integer it returns will be equal to one of the constants shown in Table 8-1. You can save the returned value in an integer variable to save the current rounding direction.

EXAMPLES

int rounddir;
double_t x, y, result;

rounddir = fegetround();      /* save rounding direction */

result = x + y;
if (rounddir == FE_TONEAREST) 
   printf("The result was rounded to the nearest value.\n");
else if (rounddir == FE_UPWARD)
   printf("The result was rounded upward.\n");
else if (rounddir == FE_DOWNWARD)
   printf("The result was rounded downward.\n");
else if (rounddir == FE_TOWARDZERO)
   printf("The result was rounded toward zero.\n");