gecko-dev/xpcom/glue/nsTArray.cpp

21 lines
688 B
C++

/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#include <string.h>
#include "nsTArray.h"
#include "nsXPCOM.h"
#include "nsDebug.h"
#include "mozilla/CheckedInt.h"
nsTArrayHeader nsTArrayHeader::sEmptyHdr = { 0, 0, 0 };
bool
IsTwiceTheRequiredBytesRepresentableAsUint32(size_t aCapacity, size_t aElemSize)
{
using mozilla::CheckedUint32;
return ((CheckedUint32(aCapacity) * aElemSize) * 2).isValid();
}