1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
|
#include "stdio_impl.h"
/* This function makes no attempt to protect the user from his/her own
* stupidity. If called any time but when then ISO C standard specifically
* allows it, all hell can and will break loose, especially with threads!
*
* This implementation ignores all arguments except the buffering type,
* and uses the existing buffer allocated alongside the FILE object.
* In the case of stderr where the preexisting buffer is length 1, it
* is not possible to set line buffering or full buffering. */
int setvbuf(FILE *f, char *buf, int type, size_t size)
{
f->lbf = EOF;
if (type == _IONBF)
f->buf_size = 0;
else if (type == _IOLBF)
f->lbf = '\n';
f->flags |= F_SVB;
return 0;
}
|