view tests/test-asin.c @ 16817:7747cb9b54b9

unistd_h: make it easier to avoid sys_types_h This is useful for Emacs, which has its own method of porting to Windows, and which therefore does not need the sys_types_h module. * m4/off_t.m4: New file, defining gl_TYPE_OFF_T, which contains code moved here from gl_SYS_TYPES_H. * m4/sys_types_h.m4 (gl_SYS_TYPES_H): Require it instead of using the code directly. * m4/unistd_h.m4 (gl_UNISTD_H): Require gl_TYPE_OFF_T, not gl_SYS_TYPES_H. * modules/sys_types (Files): * modules/unistd (Files): Add m4/off_t.m4.
author Paul Eggert <eggert@cs.ucla.edu>
date Fri, 04 May 2012 13:05:31 -0700
parents 8250f2777afc
children e542fd46ad6f
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/* Test of asin() function.
   Copyright (C) 2010-2012 Free Software Foundation, Inc.

   This program is free software: you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
   the Free Software Foundation; either version 3 of the License, or
   (at your option) any later version.

   This program is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   GNU General Public License for more details.

   You should have received a copy of the GNU General Public License
   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */

/* Written by Bruno Haible <bruno@clisp.org>, 2010.  */

#include <config.h>

#include <math.h>

#include "signature.h"
SIGNATURE_CHECK (asin, double, (double));

#include "macros.h"

volatile double x;
double y;

int
main ()
{
  /* A particular value.  */
  x = 0.6;
  y = asin (x);
  ASSERT (y >= 0.6435011087 && y <= 0.6435011088);

  return 0;
}