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diff -up octave-4.4.1/libinterp/corefcn/sysdep.cc.eof octave-4.4.1/libinterp/corefcn/sysdep.cc
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--- octave-4.4.1/libinterp/corefcn/sysdep.cc.eof 2019-05-06 21:43:06.906724728 -0600
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+++ octave-4.4.1/libinterp/corefcn/sysdep.cc 2019-05-06 21:44:58.445306461 -0600
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@@ -559,7 +559,10 @@ octave_kbhit (bool wait)
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int c = std::cin.get ();
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if (std::cin.fail () || std::cin.eof ())
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- std::cin.clear ();
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+ {
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+ std::cin.clear ();
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+ clearerr (stdin);
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+ }
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// Restore it, enabling system call restarts (if possible).
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octave::set_interrupt_handler (saved_interrupt_handler, true);
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