Ghost
If you try to build this on Arch where the compiler is up to date, you get: rakarrack.cxx: In member function ‘void RKRGUI::preset_click_i(Fl_Button*, void*)’: rakarrack.cxx:23586:18: error: format not a string literal and no format arguments [-Werror=format-security] 23586 | ok=fl_choice(temp2, "No","Yes", NULL); | ^~~~~ This is a recent(ish) development in gcc where they try to guard against sprintf weaknesses and the like. It's probably best to take the hint and rework the code, or at least use...
Traverse takes user pointer
Lists working with append and traverse
Prototypes
Trees working
Basic tree
Shorter declaration of records