C++ Program to find the length of the string without using strlen function


In this program, You will learn how to find length of string without using strlen function in C++.


while (str[i] != '\0') { 
      i++; 
}

Hello: string length = 5

Example: How to find the length of the string without using strlen function in C++.

#include<iostream>
using namespace std;

int main() {

    int i = 0;
    char str[100];

    cout << "Enter a string:";
    cin.getline(str, 100);

    while (str[i] != '\0') {
        i++;
    }
    cout << "String Length is:" << i;

    return 0;
}

Output:

Enter a string:Welcome to Xiith
String Length is:16

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