inet/test-hnto-types.c

   1 /* Test netinet/in.h endian-conversion macros always return the correct type.
   2    Copyright (C) 2017 Free Software Foundation, Inc.
   3    This file is part of the GNU C Library.
   4
   5    The GNU C Library is free software; you can redistribute it and/or
   6    modify it under the terms of the GNU Lesser General Public
   7    License as published by the Free Software Foundation; either
   8    version 2.1 of the License, or (at your option) any later version.
   9
  10    The GNU C Library is distributed in the hope that it will be useful,
  11    but WITHOUT ANY WARRANTY; without even the implied warranty of
  12    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13    Lesser General Public License for more details.
  14
  15    You should have received a copy of the GNU Lesser General Public
  16    License along with the GNU C Library; if not, see
  17    <http://www.gnu.org/licenses/>.  */
  18
  19 #include <netinet/in.h>
  20 #include <stdint.h>
  21
  22 int i;
  23 uint16_t u16;
  24 uint32_t u32;
  25
  26 int
  27 do_test (void)
  28 {
  29   /* This is a compilation test.  */
  30   extern __typeof (htons (i)) u16;
  31   extern __typeof (ntohs (i)) u16;
  32   extern __typeof (htonl (i)) u32;
  33   extern __typeof (ntohl (i)) u32;
  34   (void) u16;
  35   (void) u32;
  36   return 0;
  37 }
  38
  39 #include <support/test-driver.c>