The assert macro returns __________ value.
Answer: D
Correct answer: no
assert is a void macro: it returns nothing. If the condition holds it does nothing at all; if it fails it prints the expression, the file and the line and calls abort(). So it can never appear where a value is wanted.
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What error occurs if an input argument is outside the domain over which the mathematical function is defined?
Answer: A
Correct answer: domain error
A domain error occurs when an argument lies outside the set of values for which the function is defined - sqrt(-1) or asin(2). The function returns an implementation-defined value and sets errno to EDOM. A range error is the other case: the argument is fine but the result cannot be represented.
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Select the macro that affects the information provided by localeconv function.
Answer: C
Correct answer: LC_NUMERIC
localeconv() reports the numeric and monetary conventions, so it is governed by LC_NUMERIC - decimal point and thousands separator - and by LC_MONETARY for the currency fields. LC_COLLATE affects string comparison and LC_CTYPE character classification; neither shows up in the struct lconv.
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