By default, is STDOUT unbuffered? If not what is the type of its default buffering
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By default, is STDOUT unbuffered? If not what is the type of its default buffering
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You didn’t give a language, but assuming that you’re using C’s stdio functions (
fopen()etc.) or a language that uses these (and most do, for portability reasons):It depends on the underlying C runtime library.
Most libraries will try to detect whether STDOUT is connected to a terminal, and avoid buffering if so, and perform block buffering (e.g. my Linux system buffers 8Kb at a time) if not.