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-rw-r--r--src/corelib/concurrent/qtconcurrentcompilertest.h14
1 files changed, 14 insertions, 0 deletions
diff --git a/src/corelib/concurrent/qtconcurrentcompilertest.h b/src/corelib/concurrent/qtconcurrentcompilertest.h
index 884badb..c139c7a 100644
--- a/src/corelib/concurrent/qtconcurrentcompilertest.h
+++ b/src/corelib/concurrent/qtconcurrentcompilertest.h
@@ -57,6 +57,20 @@ QT_MODULE(Core)
# define QT_TYPENAME typename
#endif
+namespace QtPrivate {
+
+template<class T>
+class HasResultType {
+ typedef char Yes;
+ typedef void *No;
+ template<typename U> static Yes test(int, const typename U::result_type * = 0);
+ template<typename U> static No test(double);
+public:
+ enum { Value = (sizeof(test<T>(0)) == sizeof(Yes)) };
+};
+
+}
+
QT_END_NAMESPACE
QT_END_HEADER