how to check string start in C++

Question

Is there any way in C++ to check whether a string starts with a certain string (smaller than the original) ? Just like we can do in Java

bigString.startswi         


        

Answer 1

With C++20 you can use std::basic_string::starts_with (or std::basic_string_view::starts_with):

#include 

std::string_view bigString_v("Winter is gone"); // std::string_view avoids the copy in substr below.
std::string_view smallString_v("Winter");
if (bigString_v.starts_with(smallString_v))
{
    std::cout << "Westeros" << bigString_v.substr(smallString_v.size());
}