개요

• 솔라나라에 설명된 어플리케이션에 대해 맨 페이지를 찾아 출력한다.
• MAN 페이지에 대한 설명은 윈디하나의 솔라나라: MAN 페이지을 참고하자.
• svcadm(1M)을 검색하려면 섹션에서 1M 을 선택하고, 맨 페이지 이름에 svcadm을 입력하고 검색을 누른다.

fegetround(3m)

Mathematical Library Functions                                  fegetround(3M)



NAME
       fegetround, fesetround - get and set current rounding direction

SYNOPSIS
       c99 [ flag... ] file... -lm [ library... ]
       #include <fenv.h>

       int fegetround(void);


       int fesetround(int round);

DESCRIPTION
       The fegetround() function gets the current rounding direction.


       The  fesetround()  function  establishes  the rounding direction repre‐
       sented by its argument round. If the argument is not equal to the value
       of a rounding direction macro, the rounding direction is not changed.

RETURN VALUES
       The  fegetround()  function returns the value of the rounding direction
       macro representing the current rounding direction, or a negative  value
       if  there  is  no such rounding direction macro or the current rounding
       direction is not determinable.


       The fegetround() function  returns  a  0  value  if  and  only  if  the
       requested rounding direction was established.

ERRORS
       No errors are defined.

EXAMPLES
       The following example saves, sets, and restores the rounding direction,
       reporting an error and  aborting  if  setting  the  rounding  direction
       fails:

       Example 1 Save, set, and restore the rounding direction.


         #include <fenv.h>
         #include <assert.h>
         void f(int round_dir)
         {
               #pragma STDC FENV_ACCESS ON
               int save_round;
               int setround_ok;
               save_round = fegetround();
               setround_ok = fesetround(round_dir);
               assert(setround_ok == 0);
               /* ... */
               fesetround(save_round);
               /* ... */
         }



ATTRIBUTES
       See attributes(7) for descriptions of the following attributes:


       tab() box; cw(2.75i) |cw(2.75i) lw(2.75i) |lw(2.75i)


       ATTRIBUTE  TYPEATTRIBUTE  VALUE _ Interface StabilityCommitted _ Avail‐
       abilitysystem/library/math  _  MT-LevelMT-Safe  _   StandardSee   stan‐
       dards(7).


SEE ALSO
       fenv.h(3HEAD), attributes(7), standards(7)



Solaris 11.4                     27 Sept 2016                   fegetround(3M)