The Open Group Base Specifications Issue 7
IEEE Std 1003.1-2008, 2016 Edition
Copyright © 2001-2016 The IEEE and The Open Group

#### NAME

> fegetexceptflag, fesetexceptflag - get and set floating-point status flags

#### SYNOPSIS

> ``#include <fenv.h>
> int fegetexceptflag(fexcept_t *`flagp`, int` excepts`);
> int fesetexceptflag(const fexcept_t *`flagp`, int` excepts`);
> ``

#### DESCRIPTION

> [CX] The functionality described on this reference page is aligned with the ISO C standard. Any conflict between the requirements described here and the ISO C standard is unintentional. This volume of POSIX.1-2008 defers to the ISO C standard.

> 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.

#### RETURN VALUE

> 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.

#### ERRORS

> No errors are defined.

The following sections are informative.

#### EXAMPLES

> None.

#### APPLICATION USAGE

> None.

#### RATIONALE

> None.

#### FUTURE DIRECTIONS

> None.

#### SEE ALSO

> feclearexcept, feraiseexcept, fetestexcept

> XBD <fenv.h>

#### CHANGE HISTORY

> First released in Issue 6. Derived from the ISO/IEC 9899:1999 standard.

> ISO/IEC 9899:1999 standard, Technical Corrigendum 1 is incorporated.

End of informative text.

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