Implement proposed resolution of LWG-3540#1867
Merged
StephanTLavavej merged 1 commit intomicrosoft:mainfrom Apr 22, 2021
Merged
Implement proposed resolution of LWG-3540#1867StephanTLavavej merged 1 commit intomicrosoft:mainfrom
StephanTLavavej merged 1 commit intomicrosoft:mainfrom
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Drive-by: swap order of parameters for concept `_Has_formatter` so we can use it as a type-constraint. Don't use return-type deduction for overloads of `_Get_format_arg_storage_type` that always return the same type.
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Do we lose test coverage where |
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I certainly hope we have no such fragile test coverage. |
barcharcraz
approved these changes
Apr 20, 2021
StephanTLavavej
approved these changes
Apr 20, 2021
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Thanks for implementing this issue's resolution faster than the Standard could accept it! 😹 🚀 🚀 🚀 |
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... which makes
<format>handlevoid*in the same manner asconst void*. (Previouslyvoid*was treated as a "custom type" by the format argument machinery.)Drive-by: swap order of parameters for concept
_Has_formatterso we can use it as a type-constraint. Don't use return-type deduction for overloads of_Get_format_arg_storage_typethat always return the same type.Note that I haven't annotated this as implementing an unmerged LWG issue. The resolution hasn't been at all controversial in LWG, so I feel safe just making the change without annotation; reviewers may feel differently.