example1_basic_usage.cpp

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#include <iostream>
#include <type_traits>

template <typename T>
typename std::enable_if<std::is_integral<T>::value, bool>::type
is_odd(T i) {
    return i % 2 != 0;
}

int main() {
    std::cout << "Is 5 odd? " << is_odd(5) << std::endl;
    // std::cout << "Is 3.14 odd? " << is_odd(3.14) << std::endl; // This would cause a compile error
    return 0;
}