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glibc/string/tst-bswap.c
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/* Copyright (C) 2000-2016 Free Software Foundation, Inc. | |
This file is part of the GNU C Library. | |
Contributed by Ulrich Drepper <drepper@cygnus.com>. | |
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 | |
<http://www.gnu.org/licenses/>. */ | |
#include <byteswap.h> | |
#include <stdio.h> | |
extern unsigned long long int wash (unsigned long long int a); | |
static int | |
do_test (void) | |
{ | |
int result = 0; | |
/* Test the functions with constant arguments. */ | |
if (bswap_16 (0x1234) != 0x3412) | |
{ | |
puts ("bswap_16 (constant) flunked"); | |
result = 1; | |
} | |
if (bswap_32 (0x12345678) != 0x78563412) | |
{ | |
puts ("bswap_32 (constant) flunked"); | |
result = 1; | |
} | |
if (bswap_64 (0x1234567890abcdefULL) != 0xefcdab9078563412ULL) | |
{ | |
puts ("bswap_64 (constant) flunked"); | |
result = 1; | |
} | |
/* Test the functions with non-constant arguments. */ | |
if (bswap_16 (wash (0x1234)) != 0x3412) | |
{ | |
puts ("bswap_16 (non-constant) flunked"); | |
result = 1; | |
} | |
if (bswap_32 (wash (0x12345678)) != 0x78563412) | |
{ | |
puts ("bswap_32 (non-constant) flunked"); | |
result = 1; | |
} | |
if (bswap_64 (wash (0x1234567890abcdefULL)) != 0xefcdab9078563412ULL) | |
{ | |
puts ("bswap_64 (non-constant) flunked"); | |
result = 1; | |
} | |
return result; | |
} | |
unsigned long long int | |
wash (unsigned long long int a) | |
{ | |
/* Do nothing. This function simply exists to avoid that the compiler | |
regards the argument to the bswap_*() functions as constant. */ | |
return a + 0; | |
} | |
#define TEST_FUNCTION do_test () | |
#include "../test-skeleton.c" |