kc3-lang/gnulib/lib/logf.c

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• Hash : 445dd999
  Author :
  Date : 2025-09-09T12:42:35
  

  logf: Remove support for OSF/1.
  
  * m4/logf.m4 (gl_FUNC_LOGF_WORKS): Remove macro.
  (gl_FUNC_LOGF): Don't invoke it.
  * lib/logf.c (logf): Assume that logf (±0.0f) is correct.
  

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• lib/logf.c

• /* Natural logarithmic function.
     Copyright (C) 2011-2025 Free Software Foundation, Inc.
  
     This file is free software: you can redistribute it and/or modify
     it under the terms of the GNU Lesser General Public License as
     published by the Free Software Foundation, either version 3 of the
     License, or (at your option) any later version.
  
     This file 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 Lesser General Public License for more details.
  
     You should have received a copy of the GNU Lesser General Public License
     along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
  
  #include <config.h>
  
  /* Specification.  */
  #include <math.h>
  
  float
  logf (float x)
  #undef logf
  {
  #if HAVE_LOGF
    if (x < 0.0f)
      {
        /* Work around the NetBSD 5.1 bug.  */
        /* Return NaN.  */
        return 0.0f / 0.0f;
      }
    return logf (x);
  #else
    return (float) log ((double) x);
  #endif
  }
  

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