Making a particular bit "0" in C++

 

This question already has an answer here:

  • How do you set, clear, and toggle a single bit? 26 answers

    • Just use : 

    p = p & ~(1u<<3);

    What happens here ? 

     1. (1u<<3)       0...01000
 2. ~(1u<<3)      1...10111 // Invert the bits
 3. p & ~(1u<<3)  *****0*** // Here * means the bit representation of p

    That's how the bit changes to 0.
    Hope it helps :)

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