Question

How to check if string contains special characters in C++

Answer 1

#include <iostream>

int main() {
    std::string s = "c c++ javascript python c# php";
        
    std::string abc = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ01234567890_ ";        
        
    if (s.find_first_not_of(abc) != std::string::npos) {
        std::cout << "yes";
    } else {
        std::cout << "no";
    }
 
    return 0;
}
 
 
 
 
 
/*
run:
 
yes
 
*/

 

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