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// conditional example
#include <iostream>
#include <type_traits>
int main() {
short int i = 1; // code does not compile if type of i is not integral
typedef std::conditional<true,int,float>::type A; // int
typedef std::conditional<false,int,float>::type B; // float
typedef std::conditional<std::is_integral<A>::value,long,int>::type C; // long
typedef std::conditional<std::is_integral<B>::value,long,int>::type D; // int
std::cout << std::boolalpha;
std::cout << "typedefs of int:" << std::endl;
std::cout << "A: " << std::is_same<int,A>::value << std::endl;
std::cout << "B: " << std::is_same<int,B>::value << std::endl;
std::cout << "C: " << std::is_same<int,C>::value << std::endl;
std::cout << "D: " << std::is_same<int,D>::value << std::endl;
return 0;
}
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