Universal Acronym Generating System [/r/programmingprompts]

UAGS.cc

#include <iostream>
#include <sstream>
#include <string>
#include <locale>

#define MAX_WORDS 20

std::string acronymise(std::string str)
{
    std::string words[MAX_WORDS];
    std::string result;
    std::locale loc;

    std::stringstream tmp(str);

    int i = 0;
    while (tmp.good() && i < MAX_WORDS) {
        tmp >> words[i];
        ++i;
    }

    i = 0;
    for(i = 0; i < MAX_WORDS; i++)
        result += toupper(words[i][0], loc);

    return result;
}

int main(int argc, char **argv)
{
    std::string input;
    std::string EXIT("exit");

    std::cout<<"Please enter a string so we can make an Acronym: "<<std::endl<<"> ";
    std::getline(std::cin, input);

    while(input != EXIT) {

        std::cout<<"Result: "<< acronymise(input)<<std::endl;

        std::cout<<"Please enter a new phrase to make an acronym or type exit to quit."<<std::endl<<"> ";
        std::getline(std::cin, input);
    }

    return 0;
}