std::setbuf

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Defined in header <cstdio>
void setbuf( FILE *stream, char *buffer );

Sets the internal buffer to use for stream operations. It should be at least BUFSIZ characters long.

If buffer is not null, equivalent to std::setvbuf(stream, buffer, _IOFBF, BUFSIZ)

If buffer is null, equivalent to std::setvbuf(stream, NULL, _IONBF, 0), which turns off buffering.

[edit] Parameters

stream	-	the file stream to set the buffer to
buffer	-	pointer to a buffer for the stream to use. If NULL is supplied, the buffering is turned off

[edit] Return value

​0​ on success or nonzero value on failure.

[edit] See also

setvbuf	sets the buffer and its size for a file stream (function)