How to Set and Clear bits in C | Set and Clear the bits in C | Bitwise Operators in C | Toggle bits
In C programming, bits are set and cleared using bitwise operators. The key is creating a bitmask with the left shift operator () and then applying the appropriate operation: bitwise OR (|) to set a bit, and bitwise AND (&) with the bitwise NOT (~) to clear a bit.
For best practice and portability, use unsigned integer types like unsigned int or uint32_t (from stdint.h) for bitwise operations to avoid undefined behaviour associated with signed integers.
Clearing a bit forces it to 0, regardless of its current value. This is achieved using the bitwise AND (&) and bitwise NOT (~) operators.
Setting a Bit
Setting a bit forces it to 1, regardless of its current value. This is achieved using the bitwise OR (|) operator.
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