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

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• Hash : 8585ce2f
  Author :
  Date : 2011-04-27T20:40:21
  

  getcwd: fix mingw bugs
  
  On mingw, getcwd(NULL,1) succeeds, even though glibc documents that
  with a non-zero size, the allocation will not exceed that many bytes.
  
  On mingw, getcwd has the wrong signature.  However, we don't have
  to check for this if anything else triggers the replacement.
  
  Also, fix a type bug that crept into the original getcwd-lgpl commit.
  
  * m4/getcwd.m4 (gl_FUNC_GETCWD_NULL): Detect one mingw bug.
  * doc/posix-functions/getcwd.texi (getcwd): Document the problems.
  * lib/getcwd-lgpl.c (rpl_getcwd): Fix return type.
  
  Signed-off-by: Eric Blake <eblake@redhat.com>
  

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• doc/posix-functions/getcwd.texi

• @node getcwd
  @section @code{getcwd}
  @findex getcwd
  
  POSIX specification:@* @url{http://www.opengroup.org/onlinepubs/9699919799/functions/getcwd.html}
  
  Gnulib module: getcwd or getcwd-lgpl
  
  Portability problems fixed by either Gnulib module @code{getcwd} or
  @code{getcwd-lgpl}:
  @itemize
  @item
  On glibc platforms, @code{getcwd (NULL, n)} allocates memory for the result.
  On some other platforms, this call is not allowed.  Conversely, mingw fails
  to honor non-zero @code{n}.
  @item
  On some platforms, the prototype for @code{getcwd} uses @code{int}
  instead of @code{size_t} for the size argument:
  mingw.
  @end itemize
  
  Portability problems fixed by Gnulib module @code{getcwd}:
  @itemize
  @item
  This function is missing on some older platforms.
  @item
  This function does not handle long file names (greater than @code{PATH_MAX})
  correctly on some platforms.
  @end itemize
  
  Portability problems not fixed by Gnulib:
  @itemize
  @end itemize
  

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