diff options
| -rw-r--r-- | ChangeLog | 3 | ||||
| -rw-r--r-- | string/Makefile | 2 | ||||
| -rw-r--r-- | string/tst-bswap.c | 74 |
3 files changed, 78 insertions, 1 deletions
diff --git a/ChangeLog b/ChangeLog index e460a122c3..5b26efab46 100644 --- a/ChangeLog +++ b/ChangeLog @@ -3,6 +3,9 @@ * sysdeps/generic/bits/byteswap.h (__bswap_64): Make it usable for 64bit platforms. Reported by Dave Gilbert <gilbertd@treblig.org>. + * string/Makefile (tests): Add tst-bswap. + * string/tst-bswap.c: New file. + 2000-12-11 Bruno Haible <haible@clisp.cons.org> * Makefile ($(inst_includedir)/gnu/stubs.h): Sort in the C locale. diff --git a/string/Makefile b/string/Makefile index 970147c4a8..c1e13c2f25 100644 --- a/string/Makefile +++ b/string/Makefile @@ -47,7 +47,7 @@ o-objects.ob := memcpy.o memset.o memchr.o tests := tester inl-tester noinl-tester testcopy test-ffs \ tst-strlen stratcliff tst-svc tst-inlcall \ - bug-strncat1 bug-strspn1 bug-strpbrk1 + bug-strncat1 bug-strspn1 bug-strpbrk1 tst-bswap distribute := memcopy.h pagecopy.h tst-svc.expect diff --git a/string/tst-bswap.c b/string/tst-bswap.c new file mode 100644 index 0000000000..7037c1eb69 --- /dev/null +++ b/string/tst-bswap.c @@ -0,0 +1,74 @@ +/* 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 Library General Public License as + published by the Free Software Foundation; either version 2 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 + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. 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; +} |