1  /* Test endian.h endian-conversion macros accepted at file scope.
       2     Copyright (C) 2018-2023 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     <https://www.gnu.org/licenses/>.  */
      18  
      19  #include <endian.h>
      20  #include <stddef.h>
      21  
      22  int i;
      23  
      24  size_t s0 = sizeof (htobe16 (i));
      25  size_t s1 = sizeof (htole16 (i));
      26  size_t s2 = sizeof (be16toh (i));
      27  size_t s3 = sizeof (le16toh (i));
      28  size_t s4 = sizeof (htobe32 (i));
      29  size_t s5 = sizeof (htole32 (i));
      30  size_t s6 = sizeof (be32toh (i));
      31  size_t s7 = sizeof (le32toh (i));
      32  size_t s8 = sizeof (htobe64 (i));
      33  size_t s9 = sizeof (htole64 (i));
      34  size_t s10 = sizeof (be64toh (i));
      35  size_t s11 = sizeof (le64toh (i));
      36  
      37  static int
      38  do_test (void)
      39  {
      40    /* This is a compilation test.  */
      41    return 0;
      42  }
      43  
      44  #include <support/test-driver.c>