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Debugging error

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thanhbuu:

--- Quote from: northcamel on September 17, 2012, 04:53:21 pm ---How can you slove the warning "warning: GDB: Failed to set controlling terminal: Operation not permitted"?

--- End quote ---
here: "Fortunately, when I look around, I changed to "printf("%d\n", u)", it works. But printf("%d', u) it doesn't work. Maybe this is the whole problem." Or you should flush the output. Good luck!

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