Remove some references

Author: OliverRietmann

GPU/Common/MemLayout.h

@@ -78,7 +78,7 @@ struct wrapper : public S<F> {
     constexpr wrapper() = default;
     constexpr wrapper(Base b) : Base{static_cast<Base&&>(b)} {}
     template <template <class> class F_other>
-    constexpr wrapper(S<F_other>& other) : Base{other.apply(AggregateConstructor<Base>{})} {}
+    constexpr wrapper(S<F_other> other) : Base{other.apply(AggregateConstructor<Base>{})} {}
 
     constexpr wrapper<S, reference> operator[] (size_t i) { return Base::apply(RandomAccessAt<S<reference>>{i}); }
     constexpr wrapper<S, const_reference> operator[] (size_t i) const { return Base::apply(RandomAccessAt<S<const_reference>>{i}); }
@@ -94,7 +94,7 @@ struct wrapper<S, value> : public S<value> {
     constexpr wrapper() = default;
     constexpr wrapper(Base b) : Base{static_cast<Base&&>(b)} {}
     constexpr wrapper(const S<reference>& other) : Base(other.apply(AggregateConstructor<Base>{})) {}
-    constexpr wrapper(const S<const_reference> other) : Base(other.apply(AggregateConstructor<Base>{})) {}
+    constexpr wrapper(const S<const_reference>& other) : Base(other.apply(AggregateConstructor<Base>{})) {}
 
     //constexpr S<MemLayout::pointer> operator& () { return apply(GetPointer<S<MemLayout::pointer>>{}); }
     //constexpr S<MemLayout::const_pointer> operator& () const { return apply(GetPointer<S<MemLayout::const_pointer>>{}); }