|  | // Copyright (c) 2007, Google Inc. | 
|  | // All rights reserved. | 
|  | // | 
|  | // Redistribution and use in source and binary forms, with or without | 
|  | // modification, are permitted provided that the following conditions are | 
|  | // met: | 
|  | // | 
|  | //     * Redistributions of source code must retain the above copyright | 
|  | // notice, this list of conditions and the following disclaimer. | 
|  | //     * Redistributions in binary form must reproduce the above | 
|  | // copyright notice, this list of conditions and the following disclaimer | 
|  | // in the documentation and/or other materials provided with the | 
|  | // distribution. | 
|  | //     * Neither the name of Google Inc. nor the names of its | 
|  | // contributors may be used to endorse or promote products derived from | 
|  | // this software without specific prior written permission. | 
|  | // | 
|  | // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS | 
|  | // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT | 
|  | // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR | 
|  | // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT | 
|  | // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | 
|  | // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT | 
|  | // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, | 
|  | // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY | 
|  | // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | 
|  | // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | 
|  | // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | 
|  |  | 
|  | // --- | 
|  | // Author: Craig Silverstein <opensource@google.com> | 
|  | // | 
|  | // Some obscure memory-allocation routines may not be declared on all | 
|  | // systems.  In those cases, we'll just declare them ourselves. | 
|  | // This file is meant to be used only internally, for unittests. | 
|  |  | 
|  | #include <config.h> | 
|  |  | 
|  | #ifndef _XOPEN_SOURCE | 
|  | # define _XOPEN_SOURCE 600  // for posix_memalign | 
|  | #endif | 
|  | #include <stdlib.h>         // for posix_memalign | 
|  | // FreeBSD has malloc.h, but complains if you use it | 
|  | #if defined(HAVE_MALLOC_H) && !defined(__FreeBSD__) | 
|  | #include <malloc.h>         // for memalign, valloc, pvalloc | 
|  | #endif | 
|  |  | 
|  | // __THROW is defined in glibc systems.  It means, counter-intuitively, | 
|  | // "This function will never throw an exception."  It's an optional | 
|  | // optimization tool, but we may need to use it to match glibc prototypes. | 
|  | #ifndef __THROW    // I guess we're not on a glibc system | 
|  | # define __THROW   // __THROW is just an optimization, so ok to make it "" | 
|  | #endif | 
|  |  | 
|  | #if !HAVE_CFREE_SYMBOL | 
|  | extern "C" void cfree(void* ptr) __THROW; | 
|  | #endif | 
|  | #if !HAVE_POSIX_MEMALIGN_SYMBOL | 
|  | extern "C" int posix_memalign(void** ptr, size_t align, size_t size) __THROW; | 
|  | #endif | 
|  | #if !HAVE_MEMALIGN_SYMBOL | 
|  | extern "C" void* memalign(size_t __alignment, size_t __size) __THROW; | 
|  | #endif | 
|  | #if !HAVE_VALLOC_SYMBOL | 
|  | extern "C" void* valloc(size_t __size) __THROW; | 
|  | #endif | 
|  | #if !HAVE_PVALLOC_SYMBOL | 
|  | extern "C" void* pvalloc(size_t __size) __THROW; | 
|  | #endif |