__fpurge (3)
Leading comments
Copyright (C) 2001 Andries Brouwer <aeb@cwi.nl>. %%%LICENSE_START(VERBATIM) Permission is granted to make and distribute verbatim copies of this manual provided the copyright notice and this permission notice are preserved on all copies. Permission is granted to copy and distribute modified versions of this manual under the conditions for verbatim copying, provided that the entire resulting derived work is distributed under the terms of a permission notice identical to this one. Since the ...
NAME
fpurge, __fpurge - purge a streamSYNOPSIS
/* unsupported */ #include <stdio.h> int fpurge(FILE *stream); /* supported */ #include <stdio.h>
#include <stdio_ext.h> void __fpurge(FILE *stream);
DESCRIPTION
The function fpurge() clears the buffers of the given stream. For output streams this discards any unwritten output. For input streams this discards any input read from the underlying object but not yet obtained via getc(3); this includes any text pushed back via ungetc(3). See also fflush(3).The function __fpurge() does precisely the same, but without returning a value.
RETURN VALUE
Upon successful completion fpurge() returns 0. On error, it returns -1 and sets errno appropriately.ERRORS
- EBADF
- stream is not an open stream.
ATTRIBUTES
For an explanation of the terms used in this section, see attributes(7).| Interface | Attribute | Value |
| __fpurge() | Thread safety | MT-Safe race:stream |