HP-UX Reference (11i v1 05/09) - 3 Library Functions A-M (vol 6)

f
fegetexceptflag(3M) fegetexceptflag(3M)
NAME
fegetexceptflag() - get floating-point exception flags
SYNOPSIS
#include <fenv.h>
void fegetexceptflag(fexcept_t *flagp, int excepts);
DESCRIPTION
The fegetexceptflag()
function stores the exception flags indicated by the argument excepts in the
object pointed to by the argument flagp. The excepts argument can be constructed as a bitwise OR of the
exception macros:
FE_INEXACT , FE_DIVBYZERO , FE_UNDERFLOW ,
FE_OVERFLOW , and
FE_INVALID . FE_ALL_EXCEPT
represents all the exceptions.
Use
fetestexcept()
to determine which exception flags are set.
The ISO/ANSI C committee has approved the
fegetexceptflag()
function for inclusion in the C9X
draft standard.
To use this function, compile either with the default
-Ae option or with the -Aa
and -D_HPUX_SOURCE
options. Make sure your program includes <fenv.h>. Link in the math library by specifying
-lm on the
compiler or linker command line.
For more information, see the HP-UX Floating-Point Guide.
RETURN VALUE
None.
ERRORS
No errors are defined.
EXAMPLE
Store the overflow and invalid exception flags:
#include <fenv.h>
/*...*/
fexcept_t flags;
/*...*/
fegetexceptflag(&flags, FE_OVERFLOW | FE_INVALID);
SEE ALSO
feclearexcept(3M), fegettrapenable(3M), feraiseexcept(3M), fesetexceptflag(3M), fesettrapenable(3M),
fetestexcept(3M), fenv(5).
Section 3−−244 Hewlett-Packard Company − 1 − HP-UX 11i Version 1: September 2005