How can I check if a string has special characters in C++ effectively?

Question

I am trying to find if there is better way to check if the string has special characters. In my case, anything other than alphanumeric and a \'_\' is considered a special charac

Answer 1

You can use something like this:

#include 

for(int i=0;i

The isalpha() function checks whether it is alphanumeric or not and isdigit() checks whether it is digit.