fegettrapenable

fegettrapenable

Extract floating point trap enablement flags

Portability: C99

SYNOPSIS
DESCRIPTION
RETURN VALUE
CAUTIONS
RELATED FUNCTIONS
SEE ALSO

SYNOPSIS

   #include <fenvtrap.h>

   int fegettrapenable(void);

DESCRIPTION

fegettrapenable is used to extract the trap enablement flags from the current floating-point environment.

RETURN VALUE

fegettrapenable returns an integer, which is the sum of the floating-point flags for which traps are enabled.

CAUTIONS

fegettrapenable returns -1 when called from a function whose default floating-point format is hexadecimal, that is, one compiled without the bfp option.

A program which calls fegettrapenable must use the standard FENV_ACCESS pragma in an enclosing scope, or the effects are unpredictable.

RELATED FUNCTIONS

fesettrapenable

SEE ALSO

"Mathematical Functions" in Chapter 2, "Function Categories"

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