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#include "stddef.h" // for NULL
#include <libc.h> // for __IMPL
#include <stdio.h> // for _IONBF, FILE, _IOFBF, _IOLBF, setvbuf, size_t
int setvbuf(FILE *restrict stream, char *restrict buf, int type, size_t size)
{
if (type != _IOFBF && type != _IOLBF && type != _IONBF)
return -1;
if (type != _IONBF && (buf == NULL || size == 0))
return -1;
if (__IMPL(stream)->fd < 0)
return -1;
__IMPL(stream)->buf = buf;
__IMPL(stream)->buf_size = size;
__IMPL(stream)->buf_pos = 0;
__IMPL(stream)->type = type;
return 0;
}
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