Use std::optional instead of std::unique_ptr for try_make.

This requires C++17.

1 files changed, 4 insertions, 5 deletions

diff --git a/c/defs.h b/c/defs.h
index ffebcb0..c8d76b3 100644
--- a/c/defs.h
+++ b/c/defs.h
@@ -2,6 +2,7 @@
 #define DEFS_H
 
 #include <memory>
+#include <optional>
 #include <windows.h>
 #include <commctrl.h>
 #include <SWI-Prolog.h>
@@ -144,15 +145,13 @@ inline int Dpi(int i)
 }
 
 template <class T, typename ...A>
-std::unique_ptr<T> try_make_unique(A ...args)
+std::optional<T> try_make(A ...args)
 {
-	std::unique_ptr<T> up;
 	try {
-		up = std::make_unique<T>(args...);
+		return T(args...);
 	} catch (...) {
-		up = nullptr;
+		return {};
 	}
-	return up;
 }
 
 #endif