Question

How to uppercase specific character of a string in C++

Answer 1

#include <iostream>

int main() {
    std::string s = "c++ programming";

    s[4] = toupper(s[4]);

    std::cout << s;
}



/*
run:

c++ Programming

*/

 

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Answer 2

#include <iostream>

int main() {
    std::string s = "c++ programming";

    for (auto & ch: s) if (ch == 'm') ch = toupper(ch);

    std::cout << s;
}



/*
run:

c++ prograMMing

*/

 

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