Discussion
There are two groups of string functions defined in the header <string.h>. What are they?
Answer: A
Correct answer: first group names beginning with str; second group names beginning with mem
<string.h> holds two families. The str functions work on null-terminated strings, stopping at the terminator. The mem functions work on objects of a given length, taking a byte count and paying no attention to nulls - which is why they can copy or compare arbitrary binary data.
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