llvm/llvm-project
GitHub で見るOptimize `decltype(T{})` to `T` in compiler error messages
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#96,638 opened on 2024年6月25日
clang:diagnosticsgood first issuequality-of-implementation
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説明
In many cases clang generates an error like:
note: because 'implicitly_convertible(kind_of_<decltype(struct time{{{}}})>{{{}, {}}}, kind_of_<decltype(derived_quantity_spec<power<length, 2>, per<time> >{{{}, {{}}}})>{{{}}})' evaluated to false
besides the #88502 issue the decltype(T{}) also does not help in readability here. The above message could be simplified to:
note: because 'implicitly_convertible(kind_of_<struct time>{}, kind_of_<derived_quantity_spec<power<length, 2>, per<time> >>{})' evaluated to false
Those two issues would help libraries like mp-units provide users with much easier-to-understand diagnostics.