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/*
* (c) Schrodinger, Inc.
*/
#pragma once
#include <algorithm>
#include "MemoryDebug.h"
/*
* Class to handle ownership transfer of VLAs
*
* Conceptually equivalent to std::unique_ptr<T, VLAFree>
*/
template <typename T>
class unique_vla_ptr {
T * m_vla;
void swap(unique_vla_ptr<T> &other) {
std::swap(m_vla, other.m_vla);
}
public:
// destructor
~unique_vla_ptr() {
VLAFreeP(m_vla);
}
// constructor
unique_vla_ptr() : m_vla(NULL) {}
unique_vla_ptr(T * vla) : m_vla(vla) {}
// move constructor
unique_vla_ptr(unique_vla_ptr<T> && other) : m_vla(NULL) {
swap(other);
}
// move assignment
unique_vla_ptr<T> & operator= (unique_vla_ptr<T> && other) {
swap(other);
return *this;
}
// data access
const T * get() const { return m_vla; }
operator const T * () const { return m_vla; }
// checks whether the owned pointer is not NULL
operator bool() const {
return m_vla;
}
};
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