I'm trying to return an array which only has one element from a function. I've tried a few flavors and still can't find what it wants me to do:
with Ada.Text_IO; use Ada.Text_IO;
procedure Beer_Lists is
type Beer is (Guinness, PBR, Budweiser);
type Beer_List is array (Positive range <>) of Beer;
function Beer_I_Like return Beer_List;
function Beer_I_Like return Beer_List is
begin
-- error: Positional aggregate cannot have one component
-- error: write instead "Beer_List'First => ..."
return (Guinness);
-- error: expected type "Beer_List"
-- error: found type "Beer"
-- return Guinness;
-- error: prefix for "First" attribute must be constrained array
-- return (Beer_List'First => Guinness);
-- error: named association cannot follow positional association
-- error: "=>" expected (positional association cannot followed named association)
-- return (Beer_List'First => Guinness, Guinness);
-- error: named association cannot follow positional association
-- return (Guinness, Beer_List'First => Guinness);
-- error: prefix of attribute must be a name
-- error: qualify expression to turn it into a name
-- return (Guinness)'First => Guinness;
-- error: prefix for "First" attribute must be contrained array
-- error: missing ";"
-- return Beer_List'First => Guinness;
end Beer_I_Like;
begin
for B of Beer_I_Like loop
Put_Line (B'Image);
end loop;
end Beer_Lists;
Return (1 => Guinness); — Please :-)