llvm/llvm-project
Voir sur GitHubOptimize `decltype(T{})` to `T` in compiler error messages
Open
#96 638 ouverte le 25 juin 2024
clang:diagnosticsgood first issuequality-of-implementation
Métriques du dépôt
- Stars
- (26 378 stars)
- Métriques de merge PR
- (Merge moyen 1j 2h) (1 000 PRs mergées en 30 j)
Description
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.