Top: Streams: Standard input, output and error devices
#include <pstreams.h> instm pin; outstm pout; outstm perr; outstm pnull;
PTypes declares four static stream objects for standard input, output, error and null devices - pin, pout, perr and pnull respectively. These objects can be used in place of the standard C or C++ input/output interfaces. Pnull is an output stream that discards any data written to it.
See also: iobase, instm, outstm, Examples