Re: C Interview Questions

Richard Heathfield wrote:
dhruvaraj@xxxxxxxxx said:

6. .Identify the correct argument for the function call fflush() in ANSI C:

None of the candidate answers is uniquely correct. Three are wrong, and stdout is only /one/ correct argument for fflush.

Richard, could you tell me why all three are wrong. I thought stdin, stdout, stderr where all macros to FILE * for the 3 streams. Now the standard does say for buffered streams, are they not buffered?

Also the standard says you can pass NULL to fflush to flush all open streams.

Thanks

Adrian
.

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