base/allocator/allocator_shim_override_cpp_symbols.h


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// Copyright 2016 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifdef BASE_ALLOCATOR_ALLOCATOR_SHIM_OVERRIDE_CPP_SYMBOLS_H_
#error This header is meant to be included only once by allocator_shim.cc
#endif
#define BASE_ALLOCATOR_ALLOCATOR_SHIM_OVERRIDE_CPP_SYMBOLS_H_

// Preempt the default new/delete C++ symbols so they call the shim entry
// points. This file is strongly inspired by tcmalloc's
// libc_override_redefine.h.

#include <new>

#include "base/allocator/allocator_shim_internals.h"

SHIM_ALWAYS_EXPORT void* operator new(size_t size) {
  return ShimCppNew(size);
}

SHIM_ALWAYS_EXPORT void operator delete(void* p) __THROW {
  ShimCppDelete(p);
}

SHIM_ALWAYS_EXPORT void* operator new[](size_t size) {
  return ShimCppNew(size);
}

SHIM_ALWAYS_EXPORT void operator delete[](void* p) __THROW {
  ShimCppDelete(p);
}

SHIM_ALWAYS_EXPORT void* operator new(size_t size,
                                      const std::nothrow_t&) __THROW {
  return ShimCppNew(size);
}

SHIM_ALWAYS_EXPORT void* operator new[](size_t size,
                                        const std::nothrow_t&) __THROW {
  return ShimCppNew(size);
}

SHIM_ALWAYS_EXPORT void operator delete(void* p, const std::nothrow_t&) __THROW {
  ShimCppDelete(p);
}

SHIM_ALWAYS_EXPORT void operator delete[](void* p,
                                          const std::nothrow_t&) __THROW {
  ShimCppDelete(p);
}