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

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• Hash : 2b6c08c7
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  Date : 2008-01-20T00:09:59
  

  Rename two directories: headers -> posix-headers, functions -> posix-functions.
  

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• doc/posix-functions/mmap.texi

• @node mmap
  @section @code{mmap}
  @findex mmap
  
  POSIX specification: @url{http://www.opengroup.org/susv3xsh/mmap.html}
  
  Gnulib module: ---
  
  Portability problems fixed by Gnulib:
  @itemize
  @end itemize
  
  Portability problems not fixed by Gnulib:
  @itemize
  @item
  This function is missing on some platforms:
  mingw, BeOS.
  @item
  To get anonymous memory, on some platforms, you can use the flags
  @code{MAP_ANONYMOUS | MAP_PRIVATE} and @code{-1} instead of a file descriptor;
  on others you have to use a read-only file descriptor of @file{/dev/zero}.
  @item
  On HP-UX, passing a non-NULL first argument, as a hint for the address (even
  without @code{MAP_FIXED}, often causes @code{mmap} to fail.  Better pass NULL
  in this case.
  @item
  On HP-UX, @code{MAP_FIXED} basically never works.  On other platforms, it depends
  on the circumstances whether memory can be returned at a given address.
  @end itemize
  

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