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.
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);
