Section (3) fpurge
fpurge, __fpurge — purge a stream
/* unsupported */ #include <stdio.h>
/* supported */ #include <stdio.h> #include <stdio_ext.h>
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
precisely the same, but without returning a value.
Upon successful completion
fpurge() returns 0. On error, it returns
−1 and sets
For an explanation of the terms used in this section, see attributes(7).
||Thread safety||MT-Safe race:stream|
These functions are nonstandard and not portable. The
introduced in 4.4BSD and is not available under Linux. The
introduced in Solaris, and is present in glibc 2.1.95 and
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