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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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5
sprout/container/detail/range_back.hpp
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@ -13,7 +13,6 @@
#include <sprout/config.hpp>
#include <sprout/type_traits/integral_constant.hpp>
#include <sprout/type_traits/identity.hpp>
#include <sprout/type_traits/is_const_cast_convertible.hpp>
#include <sprout/container/traits_fwd.hpp>
#include <sprout/container/container_traits.hpp>
#include <sprout/container/range_functions_fwd.hpp>
@ -53,7 +52,7 @@ namespace sprout {
template<typename T>
struct is_substitutable_const_back
: public sprout::bool_constant<
sprout::is_const_cast_convertible<
sprout::is_const_reference_cast_convertible<
typename sprout::container_traits<T const>::reference,
typename sprout::container_traits<T>::reference
>::value
@ -72,7 +71,7 @@ namespace sprout {
>::type
range_back_impl(Container& cont) {
typedef typename sprout::container_traits<Container>::reference type;
return const_cast<type>(sprout::back(sprout::as_const(cont)));
return sprout::const_reference_cast<type>(sprout::back(sprout::as_const(cont)));
}
template<typename Container>
inline SPROUT_CONSTEXPR typename std::enable_if<