Note
The following functionality requires you to select a floating-point
model that supports exceptions., such as --fpmode=ieee_full or --fpmode=ieee_fixed.
C99 provides the following functions for handling rounding modes:
int fegetround(void); int fesetround(int round);
The fegetround() function returns the
current rounding mode. The current rounding mode has a value equal
to one of the C99 rounding mode macros or exceptions.
The fesetround() function sets the current
rounding mode to the value provided. fesetround() returns
zero for success, or nonzero if its argument is not a valid rounding
mode.
See also- Concepts
- Reference
Compiler Reference:
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