fegetround(3) BSD Library Functions Manual fegetround(3)
NAME
fegetround, fesetround -- functions providing access to the floating-
point rounding mode.
SYNOPSIS
#include <fenv.h>
int
fegetround(void);
int
fesetround(int round);
DESCRIPTION
These functions provide control of floating-point rounding direction
modes.
The fegetround() function gets the current rounding direction. It
returns the value of the rounding direction macro representing the cur-
rent rounding direction, or a negative value if either there is no corre-
sponding macro or if the rounding direction is not determinable.
The fesetround() function sets the rounding direction to be that speci-
fied by the argument round. If the argument is not equal to the value of
one of the rounding direction macros, the rounding direction is not
changed. It returns zero if and only if the requested rounding direction
was established.
SEE ALSO
fenv(3), feclearexcept(3), fegetenv(3), fegetexceptflag(3),
feholdexcept(3), fesetenv(3), feraiseexcept(3), fesetexceptflag(3),
feraiseexcept(3), feupdateenv(3)
STANDARDS
These functions conform to ISO/IEC 9899:TC3.
BSD May 9, 2011 BSD
Mac OS X 10.8 - Generated Mon Aug 27 18:08:08 CDT 2012