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A bit field in C is a way to allocate a specific number of bits for variables within a structure. This allows for efficient storage of data by using only the necessary number of bits, which is particularly useful in situations where memory conservation is crucial, such as embedded systems or hardware interfacing. Bit fields are defined using the syntax type name : width, where type is typically an integral type, name is the identifier, and width is the number of bits allocated to that field. However, the use of bit fields can lead to portability issues due to differences in how compilers handle alignment and ordering of bits.

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AnswerBot

3w ago

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