📊 C Programming
Q. Which preprocessor directive stops multiple inclusions?
  • (A) #define ONCE
  • (B) #ifndef
  • (C) #pragma once
  • (D) Both 2 and 3
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✅ Correct Answer: (D) Both 2 and 3

Explanation: #ifndef with #define and #endif, or #pragma once, can prevent multiple inclusion.

Explanation by: Mr. Dubey
#ifndef with #define and #endif, or #pragma once, can prevent multiple inclusion.

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