Introduce std::string_view into wider use (#14368)

src/util/pointer.h

@@ -23,6 +23,7 @@ with this program; if not, write to the Free Software Foundation, Inc.,
 #include "debug.h" // For assert()
 #include <cstring>
 #include <memory> // std::shared_ptr
+#include <string_view>
 
 
 template<typename T> class ConstSharedPtr {
@@ -133,6 +134,13 @@ public:
 		return m_size;
 	}
 
+	operator std::string_view() const
+	{
+		if (!data)
+			return std::string_view();
+		return std::string_view(reinterpret_cast<char*>(data), m_size);
+	}
+
 private:
 	void drop()
 	{