ncplane_destroy(): pull it out of the zbuffer #26

src/lib/notcurses.c

@@ -372,14 +372,24 @@ ncplane* notcurses_newplane(notcurses* nc, int rows, int cols,
 }
 
 int ncplane_destroy(notcurses* nc, ncplane* ncp){
-  if(ncp){
+  if(ncp == NULL){
+    return 0;
+  }
   if(nc->stdscr == ncp){
     return -1;
   }
-    // FIXME close it up
-  }
+  ncplane** above;
+  // pull it out of the list
+  for(above = &nc->top ; *above ; above = &(*above)->z){
+    if(*above == ncp){
+      *above = ncp->z;
+      free_plane(ncp);
       return 0;
     }
+  }
+  // couldn't find it in our stack. don't try to free this interloper.
+  return -1;
+}
 
 static int
 interrogate_terminfo(notcurses* nc, const notcurses_options* opts){