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Trying to add a workaround for MSVC.

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This commit is contained in:
Barry Revzin 2022-01-06 11:59:08 -06:00
parent 99b4b4ee01
commit 8a04ce18d2
1 changed files with 15 additions and 1 deletions
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16
include/fmt/ranges.h
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@ -221,9 +221,23 @@ template <class Tuple, class F> void for_each(Tuple&& tup, F&& f) {
for_each(indexes, std::forward<Tuple>(tup), std::forward<F>(f)); for_each(indexes, std::forward<Tuple>(tup), std::forward<F>(f));
} }
#if FMT_MSC_VER
// older MSVC doesn't get the reference type correctly for arrays
template <typename R> struct range_reference_type_impl {
using type = decltype(*detail::range_begin(std::declval<R&>()));
};
template <typename T, std::size_t N> struct range_reference_type_impl<T[N]> {
using type = T&;
};
template <typename T>
using range_reference_type = typename range_reference_type_impl<T>::type;
#else
template <typename Range> template <typename Range>
using range_reference_type = using range_reference_type =
decltype(*detail::range_begin(std::declval<Range>())); decltype(*detail::range_begin(std::declval<Range&>()));
#endif
// We don't use the Range's value_type for anything, but we do need the Range's // We don't use the Range's value_type for anything, but we do need the Range's
// reference type, with cv-ref stripped // reference type, with cv-ref stripped