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blender-archive/intern/cycles/util/vector.h
Brecht Van Lommel 286e535071 Cleanup: simplify CPU instruction checking
The performance of this will be slightly more important for upcoming changes.
Also removed an unused function and changed includes so these system.h can
be included in more places.
2022-08-09 16:59:05 +02:00

46 lines
1.1 KiB
C++

/* SPDX-License-Identifier: Apache-2.0
* Copyright 2011-2022 Blender Foundation */
#ifndef __UTIL_VECTOR_H__
#define __UTIL_VECTOR_H__
#include <cassert>
#include <cstring>
#include <vector>
#include "util/aligned_malloc.h"
#include "util/guarded_allocator.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()
{
vector<value_type, allocator_type> empty;
BaseClass::swap(empty);
}
/* 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__ */