lib/sys_uio.in.h

   1 /* Substitute for <sys/uio.h>.
   2    Copyright (C) 2011-2024 Free Software Foundation, Inc.
   3
   4    This file is free software: you can redistribute it and/or modify
   5    it under the terms of the GNU Lesser General Public License as
   6    published by the Free Software Foundation; either version 2.1 of the
   7    License, or (at your option) any later version.
   8
   9    This file is distributed in the hope that it will be useful,
  10    but WITHOUT ANY WARRANTY; without even the implied warranty of
  11    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12    GNU Lesser General Public License for more details.
  13
  14    You should have received a copy of the GNU Lesser General Public License
  15    along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
  16
  17 # if __GNUC__ >= 3
  18 @PRAGMA_SYSTEM_HEADER@
  19 # endif
  20 @PRAGMA_COLUMNS@
  21
  22 #ifndef _@GUARD_PREFIX@_SYS_UIO_H
  23
  24 #if @HAVE_SYS_UIO_H@
  25
  26 /* On OpenBSD 4.4, <sys/uio.h> assumes prior inclusion of <sys/types.h>.  */
  27 # include <sys/types.h>
  28
  29 /* The include_next requires a split double-inclusion guard.  */
  30 # @INCLUDE_NEXT@ @NEXT_SYS_UIO_H@
  31
  32 #endif
  33
  34 #ifndef _@GUARD_PREFIX@_SYS_UIO_H
  35 #define _@GUARD_PREFIX@_SYS_UIO_H
  36
  37 #if !@HAVE_SYS_UIO_H@
  38 /* A platform that lacks <sys/uio.h>.  */
  39 /* Get 'size_t' and 'ssize_t'.  */
  40 # include <sys/types.h>
  41
  42 # ifdef __cplusplus
  43 extern "C" {
  44 # endif
  45
  46 # if !GNULIB_defined_struct_iovec
  47 /* All known platforms that lack <sys/uio.h> also lack any declaration
  48    of struct iovec in any other header.  */
  49 struct iovec {
  50   void *iov_base;
  51   size_t iov_len;
  52 };
  53 #  define GNULIB_defined_struct_iovec 1
  54 # endif
  55
  56 # ifdef __cplusplus
  57 }
  58 # endif
  59
  60 #endif
  61
  62 #endif /* _@GUARD_PREFIX@_SYS_UIO_H */
  63 #endif /* _@GUARD_PREFIX@_SYS_UIO_H */