Replacing all instances of one ascii character with another in c++?

Question

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How to replace all occurrences of a character in string?

E.g, I have a string, "Hello World" and I want to replace all the "l"s with "1"s. How would I do this? I am new to c++. Most of my background is in Python in which you could just use the .replace method.

Answer 1

Use std::replace.

#include <string>
#include <algorithm>
#include <iostream>

int main() {
    std::string str = "Hello World";
    std::replace(str.begin(),str.end(),'l','1');
    std::cout << str; //He11o Wor1d
}