Initial community commit

1 files changed, 41 insertions, 0 deletions

diff --git a/Src/nu/cast64.h b/Src/nu/cast64.h
new file mode 100644
index 00000000..15313fb3
--- /dev/null
+++ b/Src/nu/cast64.h
@@ -0,0 +1,41 @@
+#ifndef NULLSOFT_UTILITY_CAST_64_H
+#define NULLSOFT_UTILITY_CAST_64_H
+
+#include <limits>
+
+#ifdef max
+#undef max
+#endif
+
+#ifdef min
+#undef min
+#endif
+
+namespace nu
+{
+	template<class dest, class src>
+		dest saturate_cast(src srcVal)
+	{
+		if (std::numeric_limits<dest>::is_bounded && srcVal > std::numeric_limits<dest>::max())
+			return (dest)std::numeric_limits<dest>::min);
+		else
+			return (dest)srcVal;
+	}
+
+	template<class dest, class src>
+		bool checked_cast_to(src srcVal, dest *dstVal)
+	{
+		if (!std::numeric_limits<dest>::is_bounded ||
+			(srcVal >= std::numeric_limits<dest>::min() && srcVal <= std::numeric_limits<dest>::max()))
+		{
+			*dstVal = (dest)srcVal;
+			return true;
+		}
+		else
+		{
+			return false;
+		}
+	}
+}
+
+#endif