On Wed, 8 Jun 2011, Zaher Dirkey wrote:
On Wed, Jun 8, 2011 at 11:22 AM, <michael.vancann...@wisa.be> wrote:
On Wed, 8 Jun 2011, Zaher Dirkey wrote:
Hi, I know when compile the project with optimize in Delphi the variable
freed/allocated after the last line used.
How can i make same in FPC, O3 not worked for me.
I used FPC 2.4.4
var
c: Currency;
begin
c := 10;
writeln(c);
<<now c freed
some code here
end;
C (as a currency) is never 'freed'. It is declared throughout the whole
procedure.
What if C is string or Interface of TInterfacedObject?
It is the same logic. It's freed only at the end.
For compiler-generated temporary variables, you should not make any assumptions.
Michael.
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