kc3-lang/gnulib/doc/posix-functions/logf.texi

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• Hash : 14a3c6e4
  Author :
  Date : 2012-03-10T16:05:56
  

  logf-ieee: Work around test failure on NetBSD 5.1.
  
  * m4/logf-ieee.m4: New file.
  * m4/logf.m4 (gl_FUNC_LOGF): If gl_FUNC_LOGF_IEEE is present, test
  whether logf works with a negative argument. Replace it if not.
  * lib/logf.c (logf): For negative arguments, return NaN.
  * modules/logf-ieee (Files): Add m4/logf-ieee.m4.
  (configure.ac): Invoke gl_FUNC_LOGF_IEEE.
  * doc/posix-functions/logf.texi: Mention the logf-ieee module.
  

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• doc/posix-functions/logf.texi

• @node logf
  @section @code{logf}
  @findex logf
  
  POSIX specification:@* @url{http://www.opengroup.org/onlinepubs/9699919799/functions/logf.html}
  
  Gnulib module: logf or logf-ieee
  
  Portability problems fixed by either Gnulib module @code{logf} or @code{logf-ieee}:
  @itemize
  @item
  This function is missing on some platforms:
  Minix 3.1.8, AIX 5.1, Solaris 9.
  @item
  This function is only defined as a macro with arguments on some platforms:
  MSVC 9.
  @item
  This function returns a wrong value for a minus zero argument on some platforms:
  OSF/1 5.1.
  @end itemize
  
  Portability problems fixed by Gnulib module @code{logf-ieee}:
  @itemize
  @item
  This function returns a wrong value for a negative argument on some platforms:
  NetBSD 5.1.
  @end itemize
  
  Portability problems not fixed by Gnulib:
  @itemize
  @end itemize
  

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