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refs #245 TupleConverter specialization for class templates can use a variadic parameter pack to support templates taking any number of parameters

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This commit is contained in:
Mathew Sutcliffe
2014-06-06 17:34:16 +01:00
parent b0ecaff4da
commit 5d38812482
1 changed files with 7 additions and 7 deletions
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14
src/blackmisc/tuple.h
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@@ -79,16 +79,16 @@
#define BLACK_DECLARE_TUPLE_CONVERSION_TEMPLATE(T, MEMBERS) \
namespace BlackMisc \
{ \
template <class U> class TupleConverter<T<U>> \
template <class... U> class TupleConverter<T<U...>> \
{ \
friend class T<U>; \
static_assert(Private::HasEnabledTupleConversion<T<U>>::value, \
"Missing BLACK_ENABLE_TUPLE_CONVERSION macro in " #T); \
static auto toTuple(const T<U> &o) -> decltype(BlackMisc::tie MEMBERS) \
friend class T<U...>; \
static_assert(Private::HasEnabledTupleConversion<T<U...>>::value, \
"Missing BLACK_ENABLE_TUPLE_CONVERSION macro in " #T); \
static auto toTuple(const T<U...> &o) -> decltype(BlackMisc::tie MEMBERS) \
{ \
return BlackMisc::tie MEMBERS; \
} \
static auto toTuple(T<U> &o) -> decltype(BlackMisc::tie MEMBERS) \
static auto toTuple(T<U...> &o) -> decltype(BlackMisc::tie MEMBERS) \
{ \
return BlackMisc::tie MEMBERS; \
} \
@@ -98,7 +98,7 @@
return members; \
} \
public: \
static auto constToTuple(const T<U> &o) -> decltype(BlackMisc::tie MEMBERS) \
static auto constToTuple(const T<U...> &o) -> decltype(BlackMisc::tie MEMBERS) \
{ \
return BlackMisc::tie MEMBERS; \
} \