1  /* Test endian.h endian-conversion macros always return the correct type.
       2     Copyright (C) 2017-2023 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 <stdint.h>
      21  
      22  int i;
      23  uint16_t u16;
      24  uint32_t u32;
      25  uint64_t u64;
      26  
      27  int
      28  do_test (void)
      29  {
      30    /* This is a compilation test.  */
      31    extern __typeof (htobe16 (i)) u16;
      32    extern __typeof (htole16 (i)) u16;
      33    extern __typeof (be16toh (i)) u16;
      34    extern __typeof (le16toh (i)) u16;
      35    extern __typeof (htobe32 (i)) u32;
      36    extern __typeof (htole32 (i)) u32;
      37    extern __typeof (be32toh (i)) u32;
      38    extern __typeof (le32toh (i)) u32;
      39    extern __typeof (htobe64 (i)) u64;
      40    extern __typeof (htole64 (i)) u64;
      41    extern __typeof (be64toh (i)) u64;
      42    extern __typeof (le64toh (i)) u64;
      43    (void) u16;
      44    (void) u32;
      45    (void) u64;
      46    return 0;
      47  }
      48  
      49  #include <support/test-driver.c>