The following code example is taken from the book
C++ Templates - The Complete Guide, 2nd Edition
by David Vandevoorde, Nicolai M. Josuttis, and Douglas Gregor,
Addison-Wesley, 2017
© Copyright David Vandevoorde, Nicolai M. Josuttis, Douglas Gregor 2017
#include <initializer_list>
#include <iostream>
void ovl(std::initializer_list<char>) { // \#1
std::cout << "#1\n";
}
void ovl(std::initializer_list<int>) { // \#2
std::cout << "#2\n";
}
int main()
{
ovl({'h', 'e', 'l', 'l', 'o', '\0'}); // prints \#1
ovl({'h', 'e', 'l', 'l', 'o', 0}); // prints \#2
}