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Attempt to fix the clang build

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This commit is contained in:
Denis Blank 2018-03-12 14:20:59 +01:00
parent 0da0dca385
commit 31b37dfbcf
1 changed files with 17 additions and 14 deletions
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31
include/continuable/detail/traits.hpp
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@ -119,37 +119,40 @@ using void_t = typename detail::deduce_to_void<T...>::type;
}(0)
#else
namespace detail {
template <typename TrueCallback>
constexpr void static_if_impl(std::true_type, TrueCallback&& trueCallback) {
std::forward<TrueCallback>(trueCallback)(0);
template <typename TrueCallback, typename Guard>
constexpr void static_if_impl(std::true_type, TrueCallback&& trueCallback,
Guard&& guard) {
std::forward<TrueCallback>(trueCallback)(guard);
}
template <typename TrueCallback>
constexpr void static_if_impl(std::false_type,
TrueCallback&& /*trueCallback*/) {
template <typename TrueCallback, typename Guard>
constexpr void static_if_impl(std::false_type, TrueCallback&& /*trueCallback*/,
Guard&& /*guard*/) {
}
template <typename TrueCallback, typename FalseCallback>
template <typename TrueCallback, typename FalseCallback, typename Guard>
constexpr auto static_if_impl(std::true_type, TrueCallback&& trueCallback,
FalseCallback&& /*falseCallback*/) {
return std::forward<TrueCallback>(trueCallback)(0);
FalseCallback&& /*falseCallback*/,
Guard&& guard) {
return std::forward<TrueCallback>(trueCallback)(guard);
}
template <typename TrueCallback, typename FalseCallback>
template <typename TrueCallback, typename FalseCallback, typename Guard>
constexpr auto static_if_impl(std::false_type, TrueCallback&& /*trueCallback*/,
FalseCallback&& falseCallback) {
return std::forward<FalseCallback>(falseCallback)(0);
FalseCallback&& falseCallback, Guard&& guard) {
return std::forward<FalseCallback>(falseCallback)(guard);
}
} // namespace detail
#define CONTINUABLE_IF_CONSTEXPR_SELECT_2(EXPR, TRUE_BRANCH) \
cti::detail::traits::detail::static_if_impl( \
std::integral_constant<bool, EXPR>{}, [&](auto) mutable { TRUE_BRANCH })
std::integral_constant<bool, EXPR>{}, [&](auto) mutable { TRUE_BRANCH }, \
EXPR)
#define CONTINUABLE_IF_CONSTEXPR_SELECT_3(EXPR, TRUE_BRANCH, FALSE_BRANCH) \
cti::detail::traits::detail::static_if_impl( \
std::integral_constant<bool, EXPR>{}, [&](auto) mutable { TRUE_BRANCH }, \
[&](auto) { FALSE_BRANCH })
[&](auto) { FALSE_BRANCH }, EXPR)
#endif // CONTINUABLE_HAS_CXX17_IF_CONSTEXPR
// https://stackoverflow.com/questions/16374776/macro-overloading