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NAMEfcloseall - close all open streams
DESCRIPTIONThe fcloseall function dissociates all open streams from its underlying file or set of functions. Any buffered output data is written first, using fflush(3). Note that the standard streams (stdin, stdout and stderr) are also closed.
RETURN VALUEThis function always returns 0.
SEE ALSOfclose(3), close(2), fflush(3), fopen(3), setbuf(3)
CONFORMING TOThe fcloseall function is a GNU extension.