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I have this function implemented to basically compile and run the cpp file I am writing. Some files needs input (cin) so running this function will not stop and would continuously showing this message:

emacs Enter a positive, odd integer (-1 to exit program): Only digits are allowed!

Not sure what is wrong:

  (defun run-it ()
    "Run it on the current file."
    (interactive)
    (save-all-buffer)
    (let ((file-name (file-name-nondirectory buffer-file-name)))
    (shell-command
     (format
        (concat "g++ -std=c++11 " file-name " -o " file-name ".o; "
                 "./" file-name ".o;")))
         ))
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3
  • Although perhaps not the source of your problem, format does not do anything here, so maybe just remove it along with the opening/closing parentheses.
    – lawlist
    Dec 24, 2019 at 0:19
  • Surely not the problem, but you call the compiled executable file.o?
    – JeanPierre
    Dec 25, 2019 at 7:45
  • Probably (save-all-buffer) this is no official function. The rest works.
    – jue
    Dec 25, 2019 at 22:50

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