int fegetexceptflag(fexcept_t *flagp, int excepts);
int fesetexceptflag(const fexcept_t *flagp, int excepts);
The fegetexceptflag() function shall attempt to store an implementation-defined representation of the states of the floating-point status flags indicated by the argument excepts in the object pointed to by the argument flagp.
The fesetexceptflag() function shall attempt to set the floating-point status flags indicated by the argument excepts to the states stored in the object pointed to by flagp. The value pointed to by flagp shall have been set by a previous call to fegetexceptflag() whose second argument represented at least those floating-point exceptions represented by the argument excepts. This function does not raise floating-point exceptions, but only sets the state of the flags.
If the representation was successfully stored, fegetexceptflag() shall return zero. Otherwise, it shall return a non-zero value. If the excepts argument is zero or if all the specified exceptions were successfully set, fesetexceptflag() shall return zero. Otherwise, it shall return a non-zero value.
No errors are defined.
The following sections are informative.
feclearexcept() , feraiseexcept() , fetestexcept() , the Base Definitions volume of IEEE Std 1003.1-2001, <fenv.h>