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C Programming Code Examples

C > Strings Code Examples

program to find the length of a String without using function strlen()

program to find the length of a String without using function strlen()

In the following C program we are counting the number of characters in a given String to find out and display its length on console. Upon execution of this program, the user would be asked to enter a string, then the program would count the chars and would display the length of input string as output.

C Program - finding length of a String without using standard library function strlen

#include <stdio.h>
int main()
{
    /* Here we are taking a char array of size 88 which means this array can hold a string of 88 chars. You can change this as per requirement    */
    char str[88],j;
    printf("Enter a string: \n");
    scanf("%s",str);

    // '\0' represents end of String
    for(j=0; str[j]!='\0'; ++j);
       printf("\nLength of input string: %d",j);
    
    return 0;
}

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