Question
a.
Non-zero if isalpha(c) or isdigit(c)
b.
0 if not isalpha(c) or not isdigit(c)
c.
Both Non-zero if isalpha(c) or isdigit(c) & 0 if not isalpha(c) or not isdigit(c)
d.
None of the mentioned
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Q. Which is true about isalnum(c), where c is an int that can be represented as an unsigned char or EOF.isalnum(c) returns?
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