C++ type traits are a powerful feature that allows you to query and manipulate types at compile-time. They are defined in the <type_traits>
header and are useful for metaprogramming. With type traits, you can perform operations such as checking if a type is integral, floating-point, or if it is a member of a certain class, enhancing the type safety of your code.
type traits, C++, metaprogramming,
#include <iostream>
#include <type_traits>
template<typename T>
void checkType() {
if (std::is_integral<T>::value) {
std::cout << "T is an integral type." << std::endl;
} else {
std::cout << "T is not an integral type." << std::endl;
}
}
int main() {
checkType<int>(); // Output: T is an integral type.
checkType<float>(); // Output: T is not an integral type.
return 0;
}
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