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stdoutobject
<cstdio>FILE * stdout; Standard output stream The standard output stream is the default destination of regular output for applications. It is usually directed to the output device of the standard console (generally, the screen).stdout can be used as an argument for any function that expects an output stream as one of its parameters, like fputs or fprintf. Although it is generally safe to assume that the default destination for stdout is going to be the screen, bear in mind that this may not be the case even in regular console systems, since stdout can be redirected at the operating system level. For example, many systems, among them DOS/Windows and most UNIX shells, support the following command syntax: myapplication > example.txt to redirect the output of myapplication to the file example.txt instead of the screen. It is also possible to redirect stdout to some other source of data from within a program using the freopen function.
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