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-rw-r--r--test/string/tst-bswap.c74
1 files changed, 74 insertions, 0 deletions
diff --git a/test/string/tst-bswap.c b/test/string/tst-bswap.c
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+++ b/test/string/tst-bswap.c
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+/* Copyright (C) 2000 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, write to the Free
+ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ 02111-1307 USA. */
+
+#include <byteswap.h>
+#include <stdio.h>
+
+extern unsigned long long int wash (unsigned long long int a);
+
+int
+main (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;
+}