fegetroundfesetround
- floating-point rounding control
LIBRARY
Lb libm
SYNOPSIS
#include <fenv.h>
Fd #pragma STDC FENV_ACCESS ON
int
fegetround (void); int
fesetround (int round);
DESCRIPTION
The
fegetround ();
function determines the current floating-point rounding mode,
and the
fesetround ();
function sets the current rounding mode to
Fa round .
The rounding mode is one of
FE_TONEAREST , FE_DOWNWARD , FE_UPWARD
or
FE_TOWARDZERO
as described in
fenv(3).
RETURN VALUES
The
fegetround ();
routine returns the current rounding mode.
The
fesetround ();
function returns 0 on success and non-zero otherwise;
however, the present implementation always succeeds.
