Move core/fxcrt/include to core/fxcrt

core/fxcrt/include/fx_memory.h

-// Copyright 2014 PDFium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
-
-#ifndef CORE_FXCRT_INCLUDE_FX_MEMORY_H_
-#define CORE_FXCRT_INCLUDE_FX_MEMORY_H_
-
-#include "core/fxcrt/include/fx_system.h"
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-// For external C libraries to malloc through PDFium. These may return nullptr.
-void* FXMEM_DefaultAlloc(size_t byte_size, int flags);
-void* FXMEM_DefaultRealloc(void* pointer, size_t new_size, int flags);
-void FXMEM_DefaultFree(void* pointer, int flags);
-
-#ifdef __cplusplus
-}  // extern "C"
-
-#include <stdlib.h>
-#include <limits>
-#include <memory>
-#include <new>
-
-NEVER_INLINE void FX_OutOfMemoryTerminate();
-
-inline void* FX_SafeRealloc(void* ptr, size_t num_members, size_t member_size) {
-  if (num_members < std::numeric_limits<size_t>::max() / member_size) {
-    return realloc(ptr, num_members * member_size);
-  }
-  return nullptr;
-}
-
-inline void* FX_AllocOrDie(size_t num_members, size_t member_size) {
-  // TODO(tsepez): See if we can avoid the implicit memset(0).
-  if (void* result = calloc(num_members, member_size)) {
-    return result;
-  }
-  FX_OutOfMemoryTerminate();  // Never returns.
-  return nullptr;             // Suppress compiler warning.
-}
-
-inline void* FX_AllocOrDie2D(size_t w, size_t h, size_t member_size) {
-  if (w < std::numeric_limits<size_t>::max() / h) {
-    return FX_AllocOrDie(w * h, member_size);
-  }
-  FX_OutOfMemoryTerminate();  // Never returns.
-  return nullptr;             // Suppress compiler warning.
-}
-
-inline void* FX_ReallocOrDie(void* ptr,
-                             size_t num_members,
-                             size_t member_size) {
-  if (void* result = FX_SafeRealloc(ptr, num_members, member_size)) {
-    return result;
-  }
-  FX_OutOfMemoryTerminate();  // Never returns.
-  return nullptr;             // Suppress compiler warning.
-}
-
-// Never returns nullptr.
-#define FX_Alloc(type, size) (type*) FX_AllocOrDie(size, sizeof(type))
-#define FX_Alloc2D(type, w, h) (type*) FX_AllocOrDie2D(w, h, sizeof(type))
-#define FX_Realloc(type, ptr, size) \
-  (type*) FX_ReallocOrDie(ptr, size, sizeof(type))
-
-// May return nullptr.
-#define FX_TryAlloc(type, size) (type*) calloc(size, sizeof(type))
-#define FX_TryRealloc(type, ptr, size) \
-  (type*) FX_SafeRealloc(ptr, size, sizeof(type))
-
-#define FX_Free(ptr) free(ptr)
-
-// The FX_ArraySize(arr) macro returns the # of elements in an array arr.
-// The expression is a compile-time constant, and therefore can be
-// used in defining new arrays, for example.  If you use FX_ArraySize on
-// a pointer by mistake, you will get a compile-time error.
-//
-// One caveat is that FX_ArraySize() doesn't accept any array of an
-// anonymous type or a type defined inside a function.
-#define FX_ArraySize(array) (sizeof(ArraySizeHelper(array)))
-
-// This template function declaration is used in defining FX_ArraySize.
-// Note that the function doesn't need an implementation, as we only
-// use its type.
-template <typename T, size_t N>
-char(&ArraySizeHelper(T(&array)[N]))[N];
-
-// Used with std::unique_ptr to FX_Free raw memory.
-struct FxFreeDeleter {
-  inline void operator()(void* ptr) const { FX_Free(ptr); }
-};
-
-// Used with std::unique_ptr to Release() objects that can't be deleted.
-template <class T>
-struct ReleaseDeleter {
-  inline void operator()(T* ptr) const { ptr->Release(); }
-};
-
-// Used to help transfer ownership of a raw pointer to std::unique_ptr.
-template <typename T>
-std::unique_ptr<T> WrapUnique(T* ptr) {
-  return std::unique_ptr<T>(ptr);
-}
-
-#endif  // __cplusplus
-
-#endif  // CORE_FXCRT_INCLUDE_FX_MEMORY_H_