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add const_reference_cast

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This commit is contained in:
bolero-MURAKAMI 2016-04-19 09:05:41 +09:00
parent 8efb1a3748
commit bd2194e331
11 changed files with 215 additions and 26 deletions
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4
sprout/container/back.hpp
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@ -24,12 +24,12 @@ namespace sprout {
// [default]
// Container is T[N] -> cont[N - 1]
// otherwise, Container is not const
// && sprout::is_const_cast_convertible<const_reference, reference>
// && sprout::is_const_reference_cast_convertible<const_reference, reference>
// && (callable sprout::as_const(cont).back()
// || callable sprout::as_const(cont).begin()
// || ADL(without sprout) callable begin(sprout::as_const(cont))
// )
// -> const_cast<reference>(sprout::back(sprout::as_const(cont)))
// -> sprout::const_reference_cast<reference>(sprout::back(sprout::as_const(cont)))
// otherwise, callable cont.back() -> cont.back()
// otherwise -> *sprout::next(sprout::begin(cont), sprout::size(cont) - 1)
//