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Home/ c++/C++: Mastering Bit Manipulation: Set, Clear, Toggle in One Go
On: May 4, 2023 Posted in c++ Comments: 0

C++: Mastering Bit Manipulation: Set, Clear, Toggle in One Go

How to Set, Clear, and Toggle a Single Bit?

Bit manipulation is an important part of programming. It is used to manipulate individual bits of data within a larger data structure or set of instructions. In this Q&A Session, we will discuss how to set, clear, and toggle a single bit.

Setting a Bit

The bitwise OR operator (|) can be used to set a bit. The following line of code sets the nth bit of number: 

number |= 1UL << n;

Note:
If number is wider than an unsigned long type then use 1ULL. This will ensure that promotion of (1UL << n), which happens after evaluating the expression, does not cause undefined behavior by shifting more than the width of a long.

Clearing a Bit


The bitwise AND operator (

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