C++ Program to Find Length of String Without Using Library Function

Here you will get C++ program to discover the length of a string without utilizing library work.

We emphasize through the string until the invalid character ‘\0’ is experienced and increment a counter factor for every cycle.

At long last print the counter factor, it contains the length of the string.

Program

#include<iostream>
#include<stdio.h>
 
using namespace std;
 
int main()
{
	char a[30];
	int i;
	cout<<"Enter a string:";
	gets(a);
	
	for(i=0;a[i]!='\0';++i);
	
	cout<<"\nLength of the string '"<<a<<"' is "<<i;
 
	return 0;
}

Output–

Enter a string:hello hi

Length of the string ‘hello hi’ is 8