// This example (part of a series) illustrates how to to use a functor.
// We build up slowly, starting with a plain old function.

#include <string>
#include <iostream>

using namespace std;

// Don’t roll your own--use std::toupper() instead.

char embiggen(char c) {
    if ('a' <= c && c <= 'z')
	return c - 'a' + 'A';
    else
	return c;
}

int main() {
    string name = "Beverly Hills Chihuahua";

    for (unsigned i=0; i<name.size(); i++)
	name[i] = embiggen(name[i]);

    cout << name << '\n';
}