The Tor Browser / file revision

 /* 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/. */

 /* A handy class that will allocate data for size*T objects on the stack and

  * otherwise allocate them on the heap. It is similar in purpose to nsAutoTArray */

 template <class T, size_t size>

 class StackArray

 {

 public:

   StackArray(size_t count) {

     if (count > size) {

       mData = new T[count];

     } else {

       mData = mStackData;

     }

   }

   ~StackArray() {

     if (mData != mStackData) {

       delete[] mData;

     }

   }

   T& operator[](size_t n) { return mData[n]; }

   const T& operator[](size_t n) const { return mData[n]; }

   T* data() { return mData; };

 private:

   T mStackData[size];

   T* mData;

 };