On 27/01/19 14:11, Walter Prins wrote:
Would it perhaps be possible to treat this as a type of optimization
however? Which is to say, if the called routine makes no changes to the
passed record, then it should not matter whether compiler implicitly
const passes the parameter or copies it?
It does, because another routine called by this routine may modify the
original record.
E.g.
var
r: record a: longint end;;
procedure modify;
begin
r.a:=2;
end;
procedure test(r: trecord);
begin
modify;
if r.a<>1 then
writeln('error');
end;
begin
r.a:=1;
test(r);
end.
Jonas
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