view tests/test-y0.c @ 16536:b4afb7c149dc

New module 'cbrtl'. * lib/math.in.h (cbrtl): New declaration. * lib/cbrtl.c: New file. * m4/cbrtl.m4: New file. * m4/math_h.m4 (gl_MATH_H): Test whether cbrtl is declared. (gl_MATH_H_DEFAULTS): Initialize GNULIB_CBRTL, HAVE_CBRTL, HAVE_DECL_CBRTL. * modules/math (Makefile.am): Substitute GNULIB_CBRTL, HAVE_CBRTL, HAVE_DECL_CBRTL. * modules/cbrtl: New file. * tests/test-math-c++.cc: Check the declaration of cbrtl. * doc/posix-functions/cbrtl.texi: Mention the new module.
author Bruno Haible <bruno@clisp.org>
date Thu, 01 Mar 2012 02:50:14 +0100
parents 8250f2777afc
children e542fd46ad6f
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/* Test of y0() 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 (y0, double, (double));

#include "macros.h"

volatile double x;
double y;

int
main ()
{
  /* A particular value.  */
  x = 3.8;
  y = y0 (x);
  ASSERT (y >= 0.0645032466 && y <= 0.0645032467);

  return 0;
}