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Apache C++ Standard Library Reference Guide

wcerr

Library:  Input/output

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Summary

A predefined stream that controls output to an unbuffered stream buffer associated with the object stderr declared in <cstdio>

Synopsis

#include <iostream>

namespace std {
  extern wostream wcerr;
}

Description

The object wcerr controls output to an unbuffered stream buffer associated with the object stderr declared in <cstdio>. By default the standard C and C++ streams are synchronized, but you can improve performance by using the ios_base member function synch_with_stdio to desynchronize them.

wcerr uses the locale codecvt facet to convert the wide characters it receives to the tiny characters it outputs to stderr.

Formatting

The formatting is done through member functions or manipulators. See cout, wcout, or basic_ostream for details.

Example

See Also

basic_ostream, basic_iostream, basic_filebuf, cout, cin, cerr, clog, wcin, wcout, wclog, ios_base, basic_ios

Standards Conformance

ISO/IEC 14882:1998 -- International Standard for Information Systems --Programming Language C++, Section 27.3.2



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