C Program to Find the Length of a String without using Function strlen()

In this section, we will write a C program to find the length of a string without using strlen() function. But before, you may go through the following topic in C programming.

• String in C

The program will take the user input for the string and iterate the string. It will count the number of characters present in the string.

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C Program to Find the Length of a String without using Function strlen()

// C program to find length of the string without using strlen() function
#include <stdio.h>

int main()
{
   char str[30];
   int i;

   printf("Enter a string: ");
   scanf("%s", str);

   for (i = 0; str[i] != '\0'; ++i);

   printf("The length of %s is %d", str, i);
   return 0;
}

Output:

Enter a string: simple2code
The length of simple2code is 11

You can also check the following:

• C Program to Find Length of a String Using strlen() Function

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