strring length in c++

String Length in C++

To find the length of a string in C++, you can use the length() or size() member functions of the std::string class. These functions return the number of characters in the string.

Here's an example:

#include <iostream>
#include <string>

int main() {
    std::string str = "Hello, world!";
    int length = str.length(); // or str.size()

    std::cout << "The length of the string is: " << length << std::endl;

    return 0;
}

In this example, the length() function is called on the str object to get the length of the string. The result is then printed to the console.

Explanation: - The std::string class in C++ provides several member functions to work with strings. - The length() and size() member functions are equivalent and can be used interchangeably to get the length of a string. - These functions return the number of characters in the string, excluding the null-terminating character. - The length of the string is stored in an int variable, which can hold the maximum length of a string in C++.