Find String Length (without strlen) Dry Run in C

Find String Length (without strlen) 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.

Find String Length (without strlen) Program Code

#include <stdio.h>
int main() {
    char str[] = "Programming";
    int length = 0;
    
    while(str[length] != '\0') {
        length++;
    }
    
    printf("Length of '%s' = %d\n", str, length);
    return 0;
}

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