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Start data export in lib_export.

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This commit is contained in:
John Preston
2018-06-02 17:29:21 +03:00
parent c2fa149ffd
commit c587c011d2
52 changed files with 1994 additions and 320 deletions
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43
Telegram/SourceFiles/rpl/variable.h
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@@ -10,6 +10,15 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
#include <rpl/producer.h>
#include <rpl/event_stream.h>
namespace mapbox {
namespace util {
template <typename ...Types>
class variant;
} // namespace util
} // namespace mapbox
namespace rpl {
namespace details {
@@ -17,18 +26,38 @@ template <typename A, typename B>
struct supports_equality_compare {
template <typename U, typename V>
static auto test(const U *u, const V *v)
-> decltype(*u == *v, details::true_t());
static details::false_t test(...);
-> decltype(*u == *v, true_t());
static false_t test(...);
static constexpr bool value
= (sizeof(test(
(std::decay_t<A>*)nullptr,
(std::decay_t<B>*)nullptr
)) == sizeof(details::true_t));
= (sizeof(test((const A*)nullptr, (const B*)nullptr))
== sizeof(true_t));
};
// Fix for MSVC expression SFINAE.
// It still doesn't work! :(
//
//template <typename Type1, typename ...Types1>
//struct supports_equality_compare<
// mapbox::util::variant<Type1, Types1...>,
// mapbox::util::variant<Type1, Types1...>> {
// static constexpr bool value
// = (supports_equality_compare<Type1, Type1>::value
// && supports_equality_compare<
// mapbox::util::variant<Types1...>,
// mapbox::util::variant<Types1...>>::value);
//
//};
//template <typename Type>
//struct supports_equality_compare<
// mapbox::util::variant<Type>,
// mapbox::util::variant<Type>> {
// static constexpr bool value = supports_equality_compare<Type, Type>::value;
//
//};
template <typename A, typename B>
constexpr bool supports_equality_compare_v
= supports_equality_compare<A, B>::value;
= supports_equality_compare<std::decay_t<A>, std::decay_t<B>>::value;
} // namespace details