🔁 do-while Loop in C

🔍 Short Explanation:
The do-while loop executes the code block at least once, then repeats it while the condition remains true. The condition is checked after the block runs.

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✅ Syntax

do {
    // code block
} while (condition);
  

📋 Example: Print 1 to 5

#include <stdio.h>

int main() {
    int i = 1;

    do {
        printf("%d\\n", i);
        i++;
    } while (i <= 5);

    return 0;
}
  

🧠 Output: 1 2 3 4 5

💡 Common Use Cases

• Menus where at least one prompt is shown
• Input validation loops
• Repeating code that must run once before checking condition

⚠️ Tips & Best Practices

• Useful when you want the loop to run at least once
• Remember the semicolon ; after while(condition)
• Watch out for infinite loops by ensuring condition changes inside loop

📌 Summary

The do-while loop ensures your code runs at least once, then continues repeating as long as the condition is true. Great for menus and input prompts.

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