bsnes/nall/array.hpp

62 lines
1.2 KiB
C++

#pragma once
#include <nall/range.hpp>
namespace nall {
template<typename T, uint Capacity>
struct array {
auto capacity() const -> uint { return Capacity; }
auto size() const -> uint { return _size; }
auto reset() -> void {
for(uint n : range(_size)) _pool.t[n].~T();
_size = 0;
}
auto operator[](uint index) -> T& {
#ifdef DEBUG
struct out_of_bounds {};
if(index >= Capacity) throw out_of_bounds{};
#endif
return _pool.t[index];
}
auto operator[](uint index) const -> const T& {
#ifdef DEBUG
struct out_of_bounds {};
if(index >= Capacity) throw out_of_bounds{};
#endif
return _pool.t[index];
}
auto append() -> T& {
new(_pool.t + _size) T;
return _pool.t[_size++];
}
auto append(const T& value) -> void {
new(_pool.t + _size++) T(value);
}
auto append(T&& value) -> void {
new(_pool.t + _size++) T(move(value));
}
auto begin() { return &_pool.t[0]; }
auto end() { return &_pool.t[_size]; }
auto begin() const { return &_pool.t[0]; }
auto end() const { return &_pool.t[_size]; }
private:
union U {
U() {}
~U() {}
T t[Capacity];
} _pool;
uint _size = 0;
};
}