UniqueValue.h

#pragma once
 
namespace Cogs {
 
  template<typename T>
  struct UniqueValue {
    UniqueValue() = default;
    UniqueValue(const T& value) : value(value) {}
    UniqueValue(const UniqueValue&) = delete;
    UniqueValue(UniqueValue&& other) noexcept : value(other.value) { other.value = T(0); }
 
    UniqueValue& operator=(const UniqueValue&) = delete;
    UniqueValue& operator=(UniqueValue&& other) noexcept { value = other.value; other.value = T(0); return *this; }
 
    T value = T(0);
  };
 
}