Copy String (without strcpy) Dry Run in C

Copy String (without strcpy) is an interactive C dry run visualizer from the Strings programs section. Study the source code, then use the execution controls to follow each step, variable update, highlighted line, and console output.

This page provides a browser-based dry run with source-code highlighting, auto-scroll, voice narration controls, and execution output for learning the program step by step.

Copy String (without strcpy) Program Code

#include <stdio.h>
int main() {
    char source[] = "Copy Me!";
    char destination[20];
    int i = 0;
    
    while(source[i] != '\0') {
        destination[i] = source[i];
        i++;
    }
    destination[i] = '\0';
    
    printf("Source: %s\n", source);
    printf("Copied: %s\n", destination);
    return 0;
}

View the complete Strings programs page.