These are the packages that would be merged, in order:

Calculating dependencies ... done!
Dependency resolution took 1.01 s (backtrack: 0/20).

[ebuild  N     ] dev-perl/Curses-1.460.0::gentoo  USE="unicode -examples -test" PERL_FEATURES="ithreads (-debug) -quadmath" 138 KiB
[ebuild  N     ] dev-perl/CursesWidgets-1.997.0-r3::gentoo  USE="-examples" PERL_FEATURES="ithreads (-debug) -quadmath" 40 KiB
[ebuild  N     ] app-admin/quickswitch-1.05::gentoo  USE="ncurses" 20 KiB

Total: 3 packages (3 new), Size of downloads: 197 KiB