Re: Give multi-child containers a convenience Container::add(std::initializer_list) [and maybe ctor] ?

Another idea for the pile:

struct GridAttachItem {
  Gtk::Widget& widget;
  int x;
  int y;
  int w;
  int h;

void Grid::attach( std::initializer_list<GridAttachItem> );

This illustrates another point, that the inability to have containers of references is subverted if the reference is part of a struct/class (since then there is a way to disambiguate by name, whether you want the element itself, or what it refers to)

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