3.6 feraiseexcept—raise floating-point exception

Synopsis

#include <fenv.h>
int feraiseexcept(int excepts);

Link with -lm.

Description
This method attempts to raise the floating-point exceptions specified in excepts.

Returns
If the excepts argument is zero or all requested exceptions were successfully raised, this method returns zero. Otherwise, a non-zero value is returned.

Portability
ANSI C requires feraiseexcept.

Not all Newlib targets have a working implementation. Refer to the file sys/fenv.h to see the status for your target.