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19 .Nd close all standard I/O streams
29 function closes all open standard I/O streams.
32 is called on each stream before closing, thus any buffered or pending
33 input is discarded while any buffered or pending output is written out
34 to the underlying file.
35 This includes the standard streams,
41 Currently, the function
45 Note, portable applications should always check the return value.
46 .Sh INTERFACE STABILITY