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C : Find the Length of a String

Tutorial by:Manisha Dubey      Date: 2016-06-17 04:32:57

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You can use standard library function strlen() to find the length of a string but, this program computes the length of a string manually without using strlen() funtion.

Source Code to Calculated Length without Using strlen() Function

#include <stdio.h>
int main()
    char s[1000],i;
    printf("Enter a string: ");
    for(i=0; s[i]!='\0'; ++i);
    printf("Length of string: %d",i);
    return 0;


Enter a string: Programiz
Length of string: 9



This program asks user to enter a string and computes the length of string manually using for loop.

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