cerr.....?
Their output destination is different but it should be the console for default.
To notice the difference between them you need to redirect their output, you can achieve this by changing their buffer ( http://www.cplusplus.com/reference/iostream/ios/rdbuf/ ) or by command line
(eg: your_program 1>file_for_cout 2>file_for_cerr
To notice the difference between them you need to redirect their output, you can achieve this by changing their buffer ( http://www.cplusplus.com/reference/iostream/ios/rdbuf/ ) or by command line
(eg: your_program 1>file_for_cout 2>file_for_cerr
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