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setvbuf Constants

#include <stdio.h>

These constants represent the type of buffer for setvbuf.

The possible values are given by the following manifest constants:

Constant

Meaning

_IOFBF

Full buffering: Buffer specified in call to setvbuf is used and its size is as specified in setvbuf call. If buffer pointer is NULL, automatically allocated buffer of specified size is used.

_IOLBF

Same as _IOFBF.

_IONBF

No buffer is used, regardless of arguments in call to setvbuf.

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