On 06/02/2015 12:58 PM, smaug wrote: > So, I'd like to understand why people think 'auto' is a good thing to use. > (bz mentioned it having some use inside bindings' codegenerator, and > sure, I can see that being rather > valid case.)
One common "auto" usage I've seen is for storing the result of a static_cast<>. In this scenario, it lets you avoid repeating yourself and makes for more concise code. I don't think there's much danger of fragility in this scenario (unlike your refcounting example), nor is there any need for a reviewer/code-skimmer to do research to find out the type -- it's still right there in front of you. (it's just not repeated twice) For example: auto concretePtr = static_cast<ReallyLongTypeName*>(abstractPtr); Nice & concise (particularly if the type name is namespaced or otherwise really long). Though it perhaps takes a little getting used to. (I agree that mixing auto with smart pointers sounds like a recipe for fragility & disaster.) ~Daniel _______________________________________________ dev-platform mailing list dev-platform@lists.mozilla.org https://lists.mozilla.org/listinfo/dev-platform
