File: free_deleter.h

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

#ifndef BASE_MEMORY_FREE_DELETER_H_
#define BASE_MEMORY_FREE_DELETER_H_

#include <stdlib.h>

namespace base {

// Function object which invokes 'free' on its parameter, which must be
// a pointer. Can be used to store malloc-allocated pointers in std::unique_ptr:
//
// std::unique_ptr<int, base::FreeDeleter> foo_ptr(
//     static_cast<int*>(malloc(sizeof(int))));
struct FreeDeleter {
  inline void operator()(void* ptr) const { free(ptr); }
};

}  // namespace base

#endif  // BASE_MEMORY_FREE_DELETER_H_