Question

How to extract the user name from an email address in C++

Answer 1

#include <iostream>
 
int main() {
    char email[] = "username@email.com";
    char uname[32] = "";
 
    int i = 0;
    while (email[i] != '@') {
        uname[i] = email[i];
        i++;
    }
 
    std::cout << uname;
}
 
 
 
 
/*
run:
 
username
 
*/

 

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Answer 2

#include <iostream>

int main() {
    std::string email = "username@email.com";
    
    int i = (int)email.find('@');
    std::string uname = email.substr(0, i);
    
    std::cout << uname;
}




/*
run:

username

*/

 

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