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

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• Hash : 86ddf2e7
  Author :
  Date : 2024-04-16T21:15:16
  

  setpayloadsigf: Add tests.
  
  * tests/test-setpayloadf.c (PAYLOAD_BITS): New macro.
  (main): Use it.
  * tests/test-setpayloadsigf.c: New file, based on
  tests/test-setpayloadf.c.
  * modules/setpayloadsigf-tests: New file.
  

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• tests/test-setpayloadf.c

• /* Test setpayloadf.
     Copyright 2024 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/>.  */
  
  #include <config.h>
  
  /* Specification.  */
  #include <math.h>
  
  #include "signature.h"
  SIGNATURE_CHECK (setpayloadf, int, (float *, float));
  
  #include "infinity.h"
  #include "isnanf-nolibm.h"
  #include "macros.h"
  
  #define PAYLOAD_BITS (24 - 2) /* = (FLT_MANT_DIG - 2) */
  
  int
  main ()
  {
    int i;
    float p;
  
    {
      /* Test valid payloads.  */
      for (i = 0, p = 1.0f; i < PAYLOAD_BITS; i++, p *= 2.0f)
        {
          int ret;
          float x;
  
          ret = setpayloadf (&x, p);
          ASSERT (ret == 0);
          ASSERT (isnanf (x));
        }
      /* Test out-of-range payload.  */
      int ret;
      float x;
  
      ret = setpayloadf (&x, p);
      ASSERT (ret != 0);
      ASSERT (x == 0.0f);
    }
  
    /* Test infinite payload.  */
    {
      int ret;
      float x;
  
      ret = setpayloadf (&x, Infinityf ());
      ASSERT (ret != 0);
      ASSERT (x == 0.0f);
    }
  
    /* Test negative payload.  */
    {
      int ret;
      float x;
  
      ret = setpayloadf (&x, -1.0f);
      ASSERT (ret != 0);
      ASSERT (x == 0.0f);
    }
  
    /* Test fractional payload.  */
    {
      int ret;
      float x;
  
      ret = setpayloadf (&x, 1.4f);
      ASSERT (ret != 0);
      ASSERT (x == 0.0f);
    }
  
    return 0;
  }
  

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