My variables do not want to be initialized

Question

var
  iMath, iAfr: integer;
begin
  if cbMath.checked then
    iMath := sedMathf.value div sedmatho.value and iMath * sedmathm.value
  else
    sedAfrm.setfocus;
end;

My variables do not want to be initialized, how can I prevent this or fix this?

Which variable doesn't want to be initialized? And what should it be initialized to? — Sam M, Mar 27 '19 at 01:25
`iMath` is not initialized before you use it in the calculation of the value of `iMath`. Read the code. Where does the value of `iMath` come from when you use it in `and iMath * edmathm.value`? — Ken White, Mar 27 '19 at 02:00

score 4 · Answer 1 · answered Mar 27 '19 at 01:56

4

You are trying to set iMath to a value using iMath. The right hand side of your assignment is undefined.

answered Mar 27 '19 at 01:56

JacalarRick

153
1
8

But doesn't Delphi always assign a default value like '0'? so it should be defined, or am I misunderstanding something? – Relinkvent Mar 27 '19 at 06:37
2

@Relinkvent: local variables are not initialized – whosrdaddy Mar 27 '19 at 07:19
Depends on the type, but most of them are not. Interfaces are a notable exception, and strings also have a valid value, although that doesn't always mean they are empty.. – GolezTrol Mar 27 '19 at 08:09
2

@Relinkvent: That is only true for **global** variables, not for local variables. – Rudy Velthuis Mar 27 '19 at 08:54

My variables do not want to be initialized

1 Answers1