NAME
fegettrapenable() — get exception trap enable bits
SYNOPSIS
#include <fenv.h>
int fegettrapenable(void);
DESCRIPTION
The
fegettrapenable()
function determines which exception trap enable bits are currently
set.
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
The
fegettrapenable()
function returns the bitwise OR of the exception macros corresponding
to the currently set exception trap enable bits.
The macros are
FE_INEXACT,
FE_DIVBYZERO,
FE_UNDERFLOW,
FE_OVERFLOW,
and
FE_INVALID.
FE_ALL_EXCEPT
represents all the exceptions.
ERRORS
No errors are defined.
EXAMPLE
Retrieve the current trap settings and determine whether a trap
for the divide by zero exception is enabled.
#include <fenv.h>
/*...*/
if (fegettrapenable() & FE_DIVBYZERO)
printf("divide by zero trap set\\n");
AUTHOR
fegettrapenable()
was developed by HP and is not required by any current standard.
