1 .\" Copyright (C) 2001 Andries Brouwer <aeb@cwi.nl>.
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25 .TH FPURGE 3 2001-12-15 "" "Linux Programmer's Manual"
27 fpurge, __fpurge \- purge a stream
33 .BI "int fpurge(FILE *" stream );
38 .B #include <stdio_ext.h>
40 .BI "void __fpurge(FILE *" stream );
45 clears the buffers of the given stream.
46 For output streams this discards any unwritten output.
47 For input streams this discards any input read from the underlying object
48 but not yet obtained via
50 this includes any text pushed back via
57 does precisely the same, but without returning a value.
59 Upon successful completion
62 On error, it returns \-1 and sets
69 is not an open stream.
71 These functions are nonstandard and not portable.
74 was introduced in 4.4BSD and is not available under Linux.
77 was introduced in Solaris, and is present in glibc 2.1.95 and later.
79 Usually it is a mistake to want to discard input buffers.