[tuple.helper] paragraph one not universally true#6777
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[tuple.helper] p1 defines a general requirement that all specializations of `tuple_size` shall meet the *Cpp17UnaryTypeTrait* requirements
but p4 actually defines a special situation where this requirement is not met ("Otherwise, it has no member value").
We have the same seemingly contradiction in [depr.tuple] p2. For clarity, we should point out that this provision is not universal.
CaseyCarter
approved these changes
Jan 21, 2024
jwakely
approved these changes
Jan 21, 2024
jensmaurer
approved these changes
Jan 21, 2024
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[tuple.helper] p1 defines a general requirement that all specializations of
tuple_sizeshall meet the Cpp17UnaryTypeTrait requirements but p4 actually defines a special situation where this requirement is not met ("Otherwise, it has no member value"). We have the same seemingly contradiction in [depr.tuple] p2. For clarity, we should point out that this provision is not universal.