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#ifndef THROTTLE_QUADRANT_UTILITIES_HPP
#define THROTTLE_QUADRANT_UTILITIES_HPP
#include <Arduino.h>
void* operator new(size_t size, void* ptr);
namespace tq {
template<typename ValueType>
struct optional {
optional()
: m_engaged{ false } {
}
optional(optional const& other)
: m_engaged{ other.has_value() } {
if (m_engaged) {
construct_from(other.value());
}
}
explicit optional(ValueType const& value)
: m_engaged{ true } {
construct_from(value);
}
~optional() {
destroy();
}
auto operator=(optional const& other) -> optional& {
destroy();
m_engaged = other.m_engaged;
if (m_engaged) {
construct_from(other.value());
}
}
auto has_value() const -> bool {
return m_engaged;
}
auto value() const -> ValueType const& {
return *(reinterpret_cast<ValueType const*>(m_storage));
}
private:
auto construct_from(ValueType const& value) -> void {
new (static_cast<byte*>(m_storage)) ValueType{ value };
}
auto destroy() -> void {
if (has_value()) {
(reinterpret_cast<ValueType const*>(m_storage))->~ValueType();
}
}
alignas(ValueType) byte m_storage[sizeof(ValueType)];
bool m_engaged;
};
}
#endif
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