Explain the bit fields portable or not, C/C++ Programming

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Explain the bit fields portable or not?

- No, Bit fields aren't portable.

- As Bit fields can't span machine words and number of bits in a machine word is different on different machines, a particular program using bit fields might not compile on some machines.

- One must avoid using bit fields except when machines can directly address bits in memory and compiler can generate code.

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