#include #include enum days {sunday, monday, tuesday, wednesday, thursday, friday, saturday}; enum colors {red, green, blue, yellow}; int day_function (enum days some_day){ /* some day calculation */ return 2; } int color_function (enum colors some_color){ /* some color calculation */ return 1; } int main(void){ enum days d = sunday; enum colors c = yellow; day_function(c); color_function(d); }