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entity ent is
end entity;
architecture a of ent is
procedure proc(
constant seq : in string;
signal clk : in bit) is
begin
for i in seq'left to seq'right loop
report ("left=" & integer'image(seq'left) &
", right=" & integer'image(seq'right) &
", i=" & integer'image(i));
report "seq(i)=" & character'image(seq(i));
wait until rising_edge(clk);
end loop;
end procedure;
signal clk : bit := '0';
begin
clk <= not clk after 1 ns;
main : process
variable var : string(1 to 10 - 1);
begin
var := (others => '0');
proc(var & "0", clk);
wait;
end process;
end architecture;
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