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39
40#ifndef QTCONCURRENT_COMPILERTEST_H
41#define QTCONCURRENT_COMPILERTEST_H
42
43#include <QtConcurrent/qtconcurrent_global.h>
44
45#ifndef QT_NO_CONCURRENT
46
47QT_BEGIN_NAMESPACE
48
49namespace QtPrivate {
50
51 template <class T, typename = void>
52 struct IsIterable : std::false_type {};
53 template <class T>
54 struct IsIterable<T, std::void_t<decltype(std::declval<T>().begin()),
55 decltype(std::declval<T>().end())>>
56 : std::true_type
57 { };
58
59 template <class T>
60 inline constexpr bool IsIterableValue = IsIterable<T>::value;
61
62 template <class T, typename = void>
63 struct IsDereferenceable : std::false_type {};
64 template <class T>
65 struct IsDereferenceable<T, std::void_t<decltype(*std::declval<T>())>>
66 : std::true_type
67 { };
68
69 template <class T>
70 inline constexpr bool IsDereferenceableValue = IsDereferenceable<T>::value;
71}
72
73QT_END_NAMESPACE
74
75#endif // QT_NO_CONCURRENT
76
77#endif
78