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Overall, how many bits in this structure definition will be used out of the overall structure allocation (as compared to how many are unused or used as padding)?Struct example { uint16_t a:2 uint16_t b:3 uint16_t c:4 uint16_t d;};1 point64 bits are being used32 bits are being used25 bits are being used10 bits are being used7 bits are being used

Question

Overall, how many bits in this structure definition will be used out of the overall structure allocation (as compared to how many are unused or used as padding)?Struct example { uint16_t a:2 uint16_t b:3 uint16_t c:4 uint16_t d;};1 point64 bits are being used32 bits are being used25 bits are being used10 bits are being used7 bits are being used

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Solution

The structure definition includes the following:

  • uint16_t a:2 uses 2 bits
  • uint16_t b:3 uses 3 bits
  • uint16_t c:4 uses 4 bits
  • uint16_t d; uses 16 bits (since uint16_t is a 16-bit unsigned integer)

Adding these up, we get a total of 2 + 3 + 4 + 16 = 25 bits being used.

So, the answer is "25 bits are being used".

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