notcurses_multiselector(3): fix up _selected

doc/man/man3/notcurses_multiselector.3.md

@@ -44,7 +44,7 @@ typedef struct ncmultiselector_options {
 
 **struct ncmultiselector* ncmultiselector_create(struct notcurses* n, int y, int x, const ncmultiselector_options* opts);**
 
-**int ncselector_selected(bool* selected, unsigned n);**
+**int ncmultiselector_selected(bool* selected, unsigned n);**
 
 **struct ncplane* ncmultiselector_plane(struct ncmultiselector* n);**
 

include/ncpp/NotCurses.hh

@@ -36,7 +36,12 @@ namespace ncpp
 		NotCurses (NotCurses &&other) = delete;
 		~NotCurses ();
 
-		notcurses* operator*() noexcept
+		operator notcurses* () noexcept
+		{
+			return nc;
+		}
+
+		operator notcurses const* () const noexcept
 		{
 			return nc;
 		}
@@ -53,7 +58,7 @@ namespace ncpp
 
 		static bool is_notcurses_stopped ()
 		{
-			return _instance == nullptr || _instance->nc == nullptr;
+			return *_instance == nullptr || _instance->nc == nullptr;
 		}
 
 		static const char* ncmetric (uintmax_t val, unsigned decimal, char *buf, int omitdec, unsigned mult, int uprefix) noexcept