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refs #345 Tuple tweaks to improve error messages.

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This commit is contained in:
Mathew Sutcliffe
2014-11-07 23:35:52 +00:00
parent 8e5a9111bd
commit e436fa3870
2 changed files with 11 additions and 11 deletions
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4
src/blackmisc/tuple_private.h
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@@ -163,9 +163,9 @@ namespace BlackMisc
// Compile-time assert for functions which require a meta tuple
template <class Tu>
struct assertMeta { static_assert(std::is_void<Tu>::value, "Function expected a meta tuple, got a value tuple"); };
void assertMeta(const Tu &) { static_assert(std::is_void<Tu>::value, "Function expected a meta tuple, got a value tuple"); }
template <class... Ts, qint64... Fs>
struct assertMeta<std::tuple<Attribute<Ts, Fs>...>> {};
void assertMeta(const std::tuple<Attribute<Ts, Fs>...> &) {}
// Convert a meta tuple to a value tuple
template <class Tu, size_t... Is>