How can I make a text replacer in c++?

Question

What I mean by that is a program that detects for example all the a's in a text I give him and replaces them with b's. How do I do that?

Answer 1

https://en.cppreference.com/w/cpp/regex

Answer 2

string str = "An apple a day, keeps the doctor away";

for (int i = 0; i < str.size(); i++)
{
if(str[i] == 'a' )
str[i] = 'b' ;
}

Answer 3

check those:
https://en.cppreference.com/w/cpp/algorithm/replace
https://en.cppreference.com/w/cpp/algorithm/replace_copy

examples:

std::replace:
https://code.sololearn.com/c5j0ez6an7MJ/#cpp

std::replace_copy:
https://code.sololearn.com/c3a6IVts2b9o/#cpp

Answer 4

Thanks guys!