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Workaround a bug in MSVC

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Signed-off-by: Vladislav Shchapov <vladislav@shchapov.ru>
This commit is contained in:
Vladislav Shchapov 2022-07-31 00:46:31 +05:00 committed by Victor Zverovich
parent 9beddd08f9
commit 6c6b1fbf6e
1 changed files with 16 additions and 12 deletions
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28
include/fmt/ranges.h
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@ -419,6 +419,15 @@ template <typename R>
using maybe_const_range =
conditional_t<has_const_begin_end<R>::value, const R, R>;
// Workaround a bug in MSVC 2015 and earlier.
#if !FMT_MSC_VERSION || FMT_MSC_VERSION >= 1910
template <typename R, typename Char>
struct is_formattable_delayed
: disjunction<
is_formattable<uncvref_type<maybe_const_range<R>>, Char>,
has_fallback_formatter<uncvref_type<maybe_const_range<R>>, Char>> {};
#endif
} // namespace detail
template <typename T, typename Char, typename Enable = void>
@ -582,19 +591,14 @@ struct range_format_kind
template <typename R, typename Char>
struct formatter<
R, Char,
enable_if_t<conjunction<
bool_constant<range_format_kind<R, Char>::value !=
range_format::disabled>
// Workaround a bug in MSVC 2017 and earlier.
#if !FMT_MSC_VERSION || FMT_MSC_VERSION >= 1920
,
disjunction<
is_formattable<detail::uncvref_type<detail::maybe_const_range<R>>,
Char>,
detail::has_fallback_formatter<
detail::uncvref_type<detail::maybe_const_range<R>>, Char>>
enable_if_t<conjunction<bool_constant<range_format_kind<R, Char>::value !=
range_format::disabled>
// Workaround a bug in MSVC 2015 and earlier.
#if !FMT_MSC_VERSION || FMT_MSC_VERSION >= 1910
,
detail::is_formattable_delayed<R, Char>
#endif
>::value>>
>::value>>
: detail::range_default_formatter<range_format_kind<R, Char>::value, R,
Char> {
};