1 files changed, 44 insertions, 0 deletions
diff --git a/Source/Checks/cm_cxx17_check.cpp b/Source/Checks/cm_cxx17_check.cpp
new file mode 100644
index 0000000..abbe22c
--- /dev/null
+++ b/Source/Checks/cm_cxx17_check.cpp
@@ -0,0 +1,44 @@
+#include <cstdio>
+#include <iterator>
+#include <memory>
+#include <optional>
+#include <unordered_map>
+
+#ifdef _MSC_VER
+#  include <comdef.h>
+#endif
+
+template <typename T,
+          typename std::invoke_result<decltype(&T::get), T>::type = nullptr>
+typename T::pointer get_ptr(T& item)
+{
+  return item.get();
+}
+
+int main()
+{
+  int a[] = { 0, 1, 2 };
+  auto ai = std::cbegin(a);
+
+  int b[] = { 2, 1, 0 };
+  auto bi = std::cend(b);
+
+  auto ci = std::size(a);
+
+  std::unique_ptr<int> u(new int(0));
+
+  // Intel compiler do not handle correctly 'decltype' inside 'invoke_result'
+  get_ptr(u);
+
+#ifdef _MSC_VER
+  // clang-cl has problems instantiating this constructor in C++17 mode
+  //  error: indirection requires pointer operand ('const _GUID' invalid)
+  //      return *_IID;
+  IUnknownPtr ptr{};
+  IDispatchPtr disp(ptr);
+#endif
+
+  std::optional<int> oi = 0;
+
+  return *u + *ai + *(bi - 1) + (3 - static_cast<int>(ci)) + oi.value();
+}