feraiseexcept - raise floating-point exception
c99 [ flag... ] file... –lm [ library... ] #include <fenv.h> int feraiseexcept(int excepts);
The feraiseexcept() function attempts to raise the supported floating-point exceptions represented by the excepts argument. The order in which these floating-point exceptions are raised is unspecified.
If excepts is 0 or if all the specified exceptions were successfully raised, feraiseexcept() returns 0. Otherwise, it returns a non-zero value.
No errors are defined.
The effect is intended to be similar to that of floating-point exceptions raised by arithmetic operations. Hence, enabled traps for floating-point exceptions raised by this function are taken.
See attributes(7) for descriptions of the following attributes:
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fenv.h(3HEAD), feclearexcept(3M), fegetexceptflag(3M), fetestexcept(3M), attributes(7), standards(7)