kc3-lang/gnulib/lib/ilogbl.c

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• Hash : 811b6ef0
  Author :
  Date : 2012-04-03T21:58:52
  

  New module 'ilogbl'.
  
  * lib/math.in.h (ilogbl): New declaration.
  * lib/ilogbl.c: New file.
  * m4/ilogbl.m4: New file.
  * m4/math_h.m4 (gl_MATH_H): Test whether ilogbl is declared.
  (gl_MATH_H_DEFAULTS): Initialize GNULIB_ILOGBL, HAVE_ILOGBL.
  * modules/math (Makefile.am): Substitute GNULIB_ILOGBL, HAVE_ILOGBL.
  Split sed invocation, to avoid the limit of 100 substitutions of
  HP-UX 'sed'.
  * modules/ilogbl: New file.
  * tests/test-math-c++.cc: Check the declaration of ilogbl.
  * doc/posix-functions/ilogbl.texi: Mention the new module.
  

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• lib/ilogbl.c

• /* Floating-point exponent.
     Copyright (C) 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/>.  */
  
  #include <config.h>
  
  /* Specification.  */
  #include <math.h>
  
  #if HAVE_SAME_LONG_DOUBLE_AS_DOUBLE
  
  int
  ilogbl (long double x)
  {
    return ilogb (x);
  }
  
  #else
  
  # define USE_LONG_DOUBLE
  # include "ilogb.c"
  
  #endif
  

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