kc3-lang/gnulib/tests/test-modf.c

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• Hash : 80c3530f
  Author :
  Date : 2012-03-03T17:00:59
  

  modf* tests: More tests.
  
  * tests/test-modf.h: New file.
  * tests/test-modf.c: Include <float.h> and test-modf.h.
  (main): Invoke test_function.
  * tests/test-modff.c: Include <float.h> and test-modf.h.
  (main): Invoke test_function.
  * tests/test-modfl.c: Include <float.h> and test-modf.h.
  (main): Invoke test_function.
  * modules/modf-tests (Files): Add tests/test-modf.h, tests/randomd.c.
  (Makefile.am): Add randomd.c to test_modf_SOURCES.
  * modules/modff-tests (Files): Add tests/test-modf.h, tests/randomf.c.
  (Makefile.am): Add randomf.c to test_modff_SOURCES.
  * modules/modfl-tests (Files): Add tests/test-modf.h, tests/randoml.c.
  (Depends-on): Add 'float'.
  (Makefile.am): Add randoml.c to test_modfl_SOURCES.
  

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• tests/test-modf.c

• /* Test of modf() 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 (modf, double, (double, double *));
  
  #include <float.h>
  
  #include "macros.h"
  
  #define DOUBLE double
  #define L_(literal) literal
  #define MANT_DIG DBL_MANT_DIG
  #define MODF modf
  #define RANDOM randomd
  #include "test-modf.h"
  
  int
  main ()
  {
    /* A particular positive value.  */
    x = 5.972406760;
    y = modf (x, &z);
    ASSERT (y >= 0.972406759 && y <= 0.972406761);
    ASSERT (z == 5.0);
  
    /* A particular negative value.  */
    x = -5.972406760;
    y = modf (x, &z);
    ASSERT (y >= -0.972406761 && y <= -0.972406759);
    ASSERT (z == -5.0);
  
    test_function ();
  
    return 0;
  }
  

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