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Question #254 Difficulty:
According to the C++23 standard, what is the output of this program?
#include <iostream>
#include <type_traits>
int main() {
std::cout << std::is_same_v<
void(int),
void(const int)>;
std::cout << std::is_same_v<
void(int*),
void(const int*)>;
}
Hint:
is_same_v<T, U>
is true
if T
and U
are the same type, false
otherwise.
In the first case, we're checking whether a function taking an int
has the same type as a function taking a const int
.
In the second case, we're checking whether a function taking a pointer to int
has the same type as a function taking a pointer to const int
(note that it's a pointer to const
, not a const
pointer).
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