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

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• Hash : 7b089321
  Author :
  Date : 2025-01-01T09:24:36
  

  maint: run 'make update-copyright'
  

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• tests/test-modff.c

• /* Test of modff() function.
     Copyright (C) 2010-2025 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 <https://www.gnu.org/licenses/>.  */
  
  /* Written by Bruno Haible <bruno@clisp.org>, 2010-2011.  */
  
  #include <config.h>
  
  #include <math.h>
  
  #include "signature.h"
  SIGNATURE_CHECK (modff, float, (float, float *));
  
  #include <float.h>
  
  #include "macros.h"
  
  #define DOUBLE float
  #define L_(literal) literal##f
  #define MANT_DIG FLT_MANT_DIG
  #define MODF modff
  #define RANDOM randomf
  #include "test-modf.h"
  
  int
  main ()
  {
    /* A particular positive value.  */
    x = 5.972407f;
    y = modff (x, &z);
    ASSERT (y >= 0.972406f && y <= 0.972408f);
    ASSERT (z == 5.0f);
  
    /* A particular negative value.  */
    x = -5.972407f;
    y = modff (x, &z);
    ASSERT (y >= -0.972408f && y <= -0.972406f);
    ASSERT (z == -5.0f);
  
    test_function ();
  
    return test_exit_status;
  }
  

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