Difference between revisions of "Global variables"
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{{Global variables}} | {{Global variables}} | ||
| − | A global [[Variable|variable]] is a | + | A global [[Variable|variable]] is a variable that is declared in the main section of a [[Program|program]] or the [[Interface|interface]] part of a [[Unit|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. |
<syntaxhighlight> | <syntaxhighlight> | ||
Revision as of 13:04, 23 June 2019
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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.
