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FEGETROUND(3)            BSD Library Functions Manual            FEGETROUND(3)

NAME
     fegetround, fesetround -- functions providing access to the floating-point rounding mode.

SYNOPSIS
     #include <fenv.h>
     #pragma STDC FENV_ACCESS ON

     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 current rounding direction, or a negative value if either there is no
     corresponding macro or if the rounding direction is not determinable.

     The fesetround() function sets the rounding direction to be that specified 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