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I am using flycheck with its defaults to write modern C++ code. I frequently get warnings such as:

extended initializer lists only available with -std=c++11 or -std=gnu++11

when using modern features.

Can somebody tell me the best way to disable the warnings related to c++11 or c++14?

  • See the author's own answer here. – Tianxiang Xiong Apr 12 '17 at 23:55
  • Ah, I didn't see that post. Thank you – Startec Apr 13 '17 at 0:24
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From @lunaryorn:

Flycheck provides the option flycheck-gcc-language-standard for this purpose. You should not set it globally, because that will break checking of C files, but you can set it from c++-mode-hook with the following code in your init file:

(add-hook 'c++-mode-hook (lambda () (setq flycheck-gcc-language-standard "c++11")))

However, I would recommend against this. Instead, use Directory Variables to configure the language standard per project.

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