IFOPT directive (Delphi)

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Type	Conditional compilation
Syntax	{$IFOPT switch}

The $IfOpt compiler directive is a meta-directive, which means that it tests for the positive (+) or negative (-) state of a single character compiler directive.

For example:

{$IFOPT R+}
   Writeln('Compiled with range-checking');
 {$ENDIF}

The Writeln statement compiles if the $R option is currently active.

Note:
$IfOpt can be used multiple times in your code.

Long directives support

The following section lists all the supported long directives that have no short directive counterpart.

Long Directive	Options
{$IFOPT ALLOWBIND}	ON or OFF
{$IFOPT ALLOWISOLATION}	ON or OFF
{$IFOPT CODEALIGN}	0, 1, 2, 4, 8, 16
{$IFOPT COMPATIBLELITERALS}	ON or OFF
{$IFOPT DENYPACKAGEUNIT}	ON or OFF
{$IFOPT DESIGNONLY}	ON or OFF
{$IFOPT DUPLICATEENABLE}	ON or OFF
{$IFOPT DYNAMICBASE}	ON or OFF
{$IFOPT EXCESSPRECISION}	ON or OFF
{$IFOPT EXTENDEDCOMPATIBILITY}	ON or OFF
{$IFOPT HIGHCHARUNICODE}	ON or OFF
{$IFOPT HIGHENTROPYVA}	ON or OFF
{$IFOPT HINTS}	ON or OFF
{$IFOPT IMPLICITBUILD}	ON or OFF
{$IFOPT INLINE}	ON, OFF, or AUTO
{$IFOPT LARGEADDRESSAWARE}	ON or OFF
{$IFOPT LEGACYIFEND}	ON or OFF
{$IFOPT NATIVE_CPP_INTERFACES}	ON or OFF
{$IFOPT NXCOMPAT}	ON or OFF
{$IFOPT OBJEXPORTALL}	ON or OFF
{$IFOPT OLDTYPELAYOUT}	ON or OFF
{$IFOPT POINTERMATH}	ON or OFF
{$IFOPT REALCOMPATIBILITY}	ON or OFF
{$IFOPT RUNONLY}	ON or OFF
{$IFOPT SCOPEDENUMS}	ON or OFF
{$IFOPT SETOSVERSION<op><Version>}	<op>: one of the following symbols: =, <>, < >, <=, >= <Version>: version number Example: {$IFOPT SETOSVERSION>=6.0}
{$IFOPT SETPEFLAGS<IntConst>}	IntConst
{$IFOPT SETPEOPTFLAGS<IntConst>}	IntConst
{$IFOPT SETSUBVERSION<op><Version>}	<op>: one of the following symbols: =, <>, < >, <=, >= <Version>: version number Example: {$IFOPT SETSUBVERSION>=9.2}
{$IFOPT SETUSERVERSION<op><Version>}	<op>: one of the following symbols: =, <>, < >, <=, >= <Version>: version number Example: {$IFOPT SETUSERVERSION<=5.}
{$IFOPT STRONGLINKTYPES}	ON or OFF
{$IFOPT TEXTBLOCK}	NATIVE, CR, LF, CRLF
{{code|{$IFOPT TSAWARE	ON or OFF
{$IFOPT TYPEINF}	OFF
{$IFOPT VARPROPSETTER}	ON or OFF
{$IFOPT VARSTRINGCHECKS}	ON or OFF
{$IFOPT WARN <Ident>}	ON, OFF, or ERROR
{$IFOPT WARNINGS}	ON, OFF, or ERROR
{$IFOPT WEAKLINKRTTI}	ON or OFF
{$IFOPT WEAKPACKAGEUNIT}	ON or OFF
{$IFOPT WRITEABLECONST}	ON or OFF
{$IFOPT ZEROBASEDSTRINGS}	ON or OFF