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75 lines
2.0 KiB
C
75 lines
2.0 KiB
C
/* Copyright (C) 2000-2023 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<https://www.gnu.org/licenses/>. */
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#include <byteswap.h>
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#include <stdio.h>
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extern unsigned long long int wash (unsigned long long int a);
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int
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do_test (void)
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{
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int result = 0;
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/* Test the functions with constant arguments. */
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if (bswap_16 (0x1234) != 0x3412)
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{
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puts ("bswap_16 (constant) flunked");
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result = 1;
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}
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if (bswap_32 (0x12345678) != 0x78563412)
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{
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puts ("bswap_32 (constant) flunked");
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result = 1;
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}
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if (bswap_64 (0x1234567890abcdefULL) != 0xefcdab9078563412ULL)
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{
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puts ("bswap_64 (constant) flunked");
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result = 1;
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}
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/* Test the functions with non-constant arguments. */
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if (bswap_16 (wash (0x1234)) != 0x3412)
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{
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puts ("bswap_16 (non-constant) flunked");
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result = 1;
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}
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if (bswap_32 (wash (0x12345678)) != 0x78563412)
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{
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puts ("bswap_32 (non-constant) flunked");
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result = 1;
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}
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if (bswap_64 (wash (0x1234567890abcdefULL)) != 0xefcdab9078563412ULL)
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{
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puts ("bswap_64 (non-constant) flunked");
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result = 1;
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}
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return result;
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}
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unsigned long long int
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wash (unsigned long long int a)
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{
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/* Do nothing. This function simply exists to avoid that the compiler
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regards the argument to the bswap_*() functions as constant. */
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return a + 0;
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}
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#include <support/test-driver.c>
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