Introduction
I have used Code::blocks 12 compiler for debugging purpose. But you can use any C programming language compiler as per your availability.
#include<stdio.h> //function declaration int stringLength(char *); int main() { char text[100]; int length; printf("Enter text (max- 100 characters): "); scanf("%[^\n]s",text); length = stringLength(text); printf("Input text is: %s\n",text); printf("Length is: %d\n",length); return 0; } int stringLength(char *str) { int len=0; //calculating string length for(len=0; str[len]!='\0'; len++); //returning len return len; }