diff options
Diffstat (limited to 'src/concurrent/qtconcurrentfunctionwrappers.h')
| -rw-r--r-- | src/concurrent/qtconcurrentfunctionwrappers.h | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/src/concurrent/qtconcurrentfunctionwrappers.h b/src/concurrent/qtconcurrentfunctionwrappers.h index 194d020fb2..a00c1c6edc 100644 --- a/src/concurrent/qtconcurrentfunctionwrappers.h +++ b/src/concurrent/qtconcurrentfunctionwrappers.h @@ -146,7 +146,13 @@ struct ReduceResultType<T(C::*)(U) noexcept> // -- MapSequenceResultType template <class InputSequence, class MapFunctor> -struct MapSequenceResultType; +struct MapSequenceResultType +{ + static_assert(std::is_same_v<typename InputSequence::value_type, + QtPrivate::MapResultType<InputSequence, MapFunctor>>, + "Couldn't deduce the output sequence type, you must specify it explicitly."); + typedef InputSequence ResultType; +}; template <class MapFunctor> struct MapSequenceResultType<QStringList, MapFunctor> |