The regular concept specifies that a type is regular, that is, it is copyable, default constructible, and equality comparable. It is satisfied by types that behave similarly to built-in types like int, and that are comparable with ==.
#include <concepts>
#include <iostream>
template<std::regular T>
struct Single
{
T value;
friend bool operator==(const Single&, const Single&) = default;
};
int main()
{
Single<int> myInt1{4};
Single<int> myInt2;
myInt2 = myInt1;
if (myInt1 == myInt2)
std::cout << "Equal\n";
std::cout << myInt1.value << ' ' << myInt2.value << '\n';
}
Output:
[edit] ReferencesRetroSearch is an open source project built by @garambo | Open a GitHub Issue
Search and Browse the WWW like it's 1997 | Search results from DuckDuckGo
HTML:
3.2
| Encoding:
UTF-8
| Version:
0.7.4