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C++ API

: fflush (fid)

Flush output to file descriptor fid.

fflush returns 0 on success and an OS dependent error value (-1 on Unix) on error.

Programming Note: Flushing is useful for ensuring that all pending output makes it to the screen before some other event occurs. For example, it is always a good idea to flush the standard output stream before calling input.

See also: fopen, fclose.

Package: octave