6.18.6 setvbuf/setbuf Macros

These macros are used by the function setvbuf.

_IOFBF

Indicates full buffering.

Include

<stdio.h>

_IOLBF

Indicates line buffering.

Include

<stdio.h>

_IONBF

Indicates no buffering.

Include

<stdio.h>

BUFSIZ

An integer constant expression defining the size of the buffer used by setbuf.

Include

<stdio.h>