Global variables

From Free Pascal wiki

English (en) suomi (fi) русский (ru)

A global variable is a variable that is declared in the main section of a program or the interface part of a unit. Globals declared in a program cannot be accessed from within a unit. Globals declared in a unit can be accessed from within a program or another unit.

program GlobalVariables;
var
  g: integer;
begin
end.

g is a global variable.


External variable

External variable is a global variable has been declared in unit interface section.

Read More