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# std::setbuf

From cppreference.com
< cpp‎ | io‎ | c

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

Sets the internal buffer to use for I/O operations performed on the C stream `stream`.

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. If not null, must be able to hold at least `BUFSIZ` characters

### [edit] Return value

(none)

### [edit] See also

setvbuf | sets the buffer and its size for a file stream (function) [edit]
C documentation for setbuf

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