Правила форума
Conditional Compilation ConstructsLanguage:
Русский
English
Conditional Compilation Constructs
▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀
You can use conditional compilation directives to produce different code from the same source text, based on the state of conditional symbols.
You can use two constructs:
- {$IFxxx} ... {$ENDIF}
- {$IFxxx} ... {$ELSE} ... {$ENDIF}
IF ... ENDIF:
The $IFxxx ... $ENDIF construct causes the source text between $IFxxx and $ENDIF to be compiled only if the condition specified in $IFxxx is True.
If the condition is False, the source text between the two directives is ignored.
IF ... ELSE ... ENDIF:
The $IFxxx ... $ELSE ... $ENDIF construct causes
- the source text between $IFxxx and $ELSE to be compiled if the $IFxxx
condition is True, or
- the source text between $ELSE and $ENDIF to be compiled if the $IFxxx
condition is not True.
Conditional constructs can be nested to 16 levels deep.
There must be an equal number of $IFxxx and $ENDIF directives in every source file.
::
::
::
