What is the return type of a function named bitCount that counts bits and returns the count as an unsigned integer?

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Multiple Choice

What is the return type of a function named bitCount that counts bits and returns the count as an unsigned integer?

Explanation:
A function that counts bits returns a count, which is always non-negative. Using an unsigned type communicates that intent and prevents negative values. unsigned int is the natural choice here because it reliably represents non-negative counts and has a range large enough for bit counts in typical integer sizes (a maximum of 64 in common cases, which fits well). While a signed int could hold small counts, it might imply the possibility of negative results, which doesn’t make sense for a count. The other options don’t add any real benefit for this purpose.

A function that counts bits returns a count, which is always non-negative. Using an unsigned type communicates that intent and prevents negative values. unsigned int is the natural choice here because it reliably represents non-negative counts and has a range large enough for bit counts in typical integer sizes (a maximum of 64 in common cases, which fits well). While a signed int could hold small counts, it might imply the possibility of negative results, which doesn’t make sense for a count. The other options don’t add any real benefit for this purpose.

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