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Categories: Strings. No Comments on C program to find the length of a string without using strlen

In this article we will learn to implement a C program to find the length of a string without using strlen. A C program is provided below to find length of a string without using predefined function.

 

Program is as follows:

#include<stdio.h>
int main()
{
	char str[20];
	printf("Enter a string: ");
	scanf("%s", str);
	int i = 0;
	while(str[i] != '\0')
	{
		i++;
	}
	printf("Length of the string is: %d", i);
	return 0;
}

 

Input and output for the above program is as follows:

Enter a string: india
Length of the string is: 5

 

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Suryateja Pericherla

Suryateja Pericherla, at present is a Research Scholar (full-time Ph.D.) in the Dept. of Computer Science & Systems Engineering at Andhra University, Visakhapatnam. Previously worked as an Associate Professor in the Dept. of CSE at Vishnu Institute of Technology, India.

He has 11+ years of teaching experience and is an individual researcher whose research interests are Cloud Computing, Internet of Things, Computer Security, Network Security and Blockchain.

He is a member of professional societies like IEEE, ACM, CSI and ISCA. He published several research papers which are indexed by SCIE, WoS, Scopus, Springer and others.

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