Justin Marshall
43 lines
989 B
C++
43 lines
989 B
C++
#pragma once
|
|
|
|
#include <type_traits>
|
|
|
|
template<typename valueType, typename invalidType>
|
|
class idIndex {
|
|
public:
|
|
idIndex()
|
|
: value(static_cast<valueType>(-1)) {
|
|
}
|
|
|
|
explicit idIndex(const valueType index)
|
|
: value(index) {
|
|
}
|
|
|
|
bool IsValid() const {
|
|
return value != static_cast<valueType>(-1);
|
|
}
|
|
|
|
void Invalidate() {
|
|
value = static_cast<valueType>(-1);
|
|
}
|
|
|
|
valueType Get() const {
|
|
return value;
|
|
}
|
|
|
|
operator valueType() const {
|
|
return value;
|
|
}
|
|
|
|
bool operator==(const idIndex& other) const { return value == other.value; }
|
|
bool operator!=(const idIndex& other) const { return value != other.value; }
|
|
bool operator<(const idIndex& other) const { return value < other.value; }
|
|
|
|
private:
|
|
valueType value;
|
|
};
|
|
|
|
enum class idRecoveredInvalidIndex : int { invalid = -1 };
|
|
static_assert(sizeof(idIndex<short, idRecoveredInvalidIndex>) == sizeof(short),
|
|
"Recovered idIndex ABI changed");
|