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What does tmpfile() returns when it could not create the file?

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What does tmpfile() returns when it could not create the file?

(a) stream and NULL

(b) only stream

(c) only NULL

(d) does not return anything

I had been asked this question during an interview.

The above asked question is from File Operations topic in section Input and Output in C of C

1 Answer

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by (829k points)
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Best answer
Right choice is (a) stream and NULL

The best I can explain: tmpfile() returns a stream or NULL  if it could not create the file.

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