CODEWITHSUNDEEP
c++cbuffer
Wesley Alves
Wesley Alves

Reputation: 65

Clear buffer independent of the operating system

I'd like to know how I can do to clear the standard input buffer, regardless of the operating system I'm using. I know that in Windows I can use fflush and Linux fpurge, but I would like a single solution that works for both (does not necessarily have to be a function).

Upvotes: 0

Views: 202

Answers (1)

zwol
zwol

Reputation: 140455

Depending on what you mean by "clear the standard input buffer", this may do:

int c;
do c = getchar(); while (c != EOF && c != '\n');

This absorbs up to EOF or a newline, whichever comes first.

The main situation where this wouldn't be what you want is if you don't want it to maybe block until the user presses Enter. In that case, you're SOL; there is no universal mechanism.

Upvotes: 1

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