Discussion
What will the given C code do?
int memcmp(const void *str1, const void *str2, size_t n)
Answer: A
Correct answer: compares the first n bytes of str1 and str2
memcmp compares the first n bytes of the two objects, returning a negative, zero or positive value like strcmp. It copies nothing, and unlike the str functions it takes no notice of null bytes - it compares exactly n bytes whatever they contain.
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