-o changes the output filename (I found that using –help)
But I can’t find out what -Wall does?
-o changes the output filename (I found that using –help) But I can’t find
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-o changes the output filename (I found that using –help)
But I can’t find out what -Wall does?
It’s short for “warn all” — it turns on (almost) all the warnings that g++ can tell you about. Typically a good idea, especially if you’re a beginner, because understanding and fixing those warnings can help you fix lots of different kinds of problems in your code.