Mercurial > gnulib
view tests/test-memcmp.c @ 40206:770a5696761e
relocatable-prog: Use wrapper-free installation on Mac OS X, take 2.
This approach supports relocatable installation of shared libraries
which depend on other shared libraries from the same package.
* m4/relocatable.m4 (gl_RELOCATABLE_BODY): Determine use_macos_tools.
If use_macos_tools is true, use reloc-ldflags and set LIBTOOL to be a
wrapper around the original LIBTOOL.
* build-aux/reloc-ldflags: Add support for Mac OS X, which uses the
token '@loader_path' instead of '$ORIGIN'.
* build-aux/libtool-reloc: New file.
* modules/relocatable-prog (Files): Add it.
* doc/relocatable-maint.texi (Supporting Relocation): Update to match
the recent changes. Document the need to set the *_LDFLAGS of libraries.
RELOCATABLE_LIBRARY_PATH and RELOCATABLE_CONFIG_H_DIR should be set in
Makefile.am, not in configure.ac.
author | Bruno Haible <bruno@clisp.org> |
---|---|
date | Mon, 04 Mar 2019 17:25:09 +0100 |
parents | b06060465f09 |
children |
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/* * Copyright (C) 2008-2019 Free Software Foundation, Inc. * Written by Simon Josefsson * * This program is free software: you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 3 of the License, or * (at your option) any later version. * * This program 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 General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program. If not, see <https://www.gnu.org/licenses/>. */ #include <config.h> #include <string.h> #include "signature.h" SIGNATURE_CHECK (memcmp, int, (void const *, void const *, size_t)); #include "zerosize-ptr.h" #include "macros.h" /* Note: This test sometimes fails when compiled by 'clang'. See <https://bugs.llvm.org/show_bug.cgi?id=40063>. */ int main (void) { /* Test equal / not equal distinction. */ ASSERT (memcmp (zerosize_ptr (), zerosize_ptr (), 0) == 0); ASSERT (memcmp ("foo", "foobar", 2) == 0); ASSERT (memcmp ("foo", "foobar", 3) == 0); ASSERT (memcmp ("foo", "foobar", 4) != 0); ASSERT (memcmp ("foo", "bar", 1) != 0); ASSERT (memcmp ("foo", "bar", 3) != 0); /* Test less / equal / greater distinction. */ ASSERT (memcmp ("foo", "moo", 4) < 0); ASSERT (memcmp ("moo", "foo", 4) > 0); ASSERT (memcmp ("oomph", "oops", 3) < 0); ASSERT (memcmp ("oops", "oomph", 3) > 0); ASSERT (memcmp ("foo", "foobar", 4) < 0); ASSERT (memcmp ("foobar", "foo", 4) > 0); /* Some old versions of memcmp were not 8-bit clean. */ ASSERT (memcmp ("\100", "\201", 1) < 0); ASSERT (memcmp ("\201", "\100", 1) > 0); ASSERT (memcmp ("\200", "\201", 1) < 0); ASSERT (memcmp ("\201", "\200", 1) > 0); /* The Next x86 OpenStep bug shows up only when comparing 16 bytes or more and with at least one buffer not starting on a 4-byte boundary. William Lewis provided this test program. */ { char foo[21]; char bar[21]; int i; for (i = 0; i < 4; i++) { char *a = foo + i; char *b = bar + i; strcpy (a, "--------01111111"); strcpy (b, "--------10000000"); ASSERT (memcmp (a, b, 16) < 0); } } return 0; }