Standard Streams (The GNU C Library)
https://www.gnu.org/software/libc/manual/html_node/Standard-Streams.html
WEBIn the GNU C Library, stdin, stdout, and stderr are normal variables which you can set just like any others. For example, to redirect the standard output to a file, you could do: fclose (stdout); stdout = fopen ("standard-output-file", "w"); Note however, that in other systems stdin, stdout, and stderr are macros that you cannot assign to in ...
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