glibc/string/test-endian-sign-conversion.c

49 lines
1.4 KiB
C

/* Test endian.h endian-conversion macros work with -Wsign-conversion.
Copyright (C) 2018-2020 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, see
<https://www.gnu.org/licenses/>. */
#include <endian.h>
#include <stdint.h>
uint16_t u16;
uint32_t u32;
uint64_t u64;
static int
do_test (void)
{
/* This is a compilation test. */
u16 = (htobe16 (u16));
u16 = (htole16 (u16));
u16 = (be16toh (u16));
u16 = (le16toh (u16));
u32 = (htobe32 (u32));
u32 = (htole32 (u32));
u32 = (be32toh (u32));
u32 = (le32toh (u32));
u64 = (htobe64 (u64));
u64 = (htole64 (u64));
u64 = (be64toh (u64));
u64 = (le64toh (u64));
(void) u16;
(void) u32;
(void) u64;
return 0;
}
#include <support/test-driver.c>