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/*
* Copyright 2011-2013 Blender Foundation
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef __UTIL_VECTOR_H__
#define __UTIL_VECTOR_H__
#include <cassert>
#include <cstring>
#include <vector>
#include "util/util_aligned_malloc.h"
#include "util/util_guarded_allocator.h"
#include "util/util_types.h"
CCL_NAMESPACE_BEGIN
/* Own subclass-ed version of std::vector. Subclass is needed because:
*
* - Use own allocator which keeps track of used/peak memory.
* - Have method to ensure capacity is re-set to 0.
*/
template<typename value_type, typename allocator_type = GuardedAllocator<value_type>>
class vector : public std::vector<value_type, allocator_type> {
public:
typedef std::vector<value_type, allocator_type> BaseClass;
/* Inherit all constructors from base class. */
using BaseClass::vector;
/* Try as hard as possible to use zero memory. */
void free_memory()
{
BaseClass::resize(0);
BaseClass::shrink_to_fit();
}
/* Some external API might demand working with std::vector. */
operator std::vector<value_type>()
{
return std::vector<value_type>(this->begin(), this->end());
}
};
CCL_NAMESPACE_END
#endif /* __UTIL_VECTOR_H__ */
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