Delphi Basics : RTL By category : Compiler Directives

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Unit	Compiler Directive	Summary

	$A	Determines whether data is aligned or packed
	$Align	Determines whether data is aligned or packed
	$AppType	Determines the application type : GUI or Console
	$B	Whether to short cut and and or operations
	$BoolEval	Whether to short cut and and or operations
	$D	Determines whether application debug information is built
	$DebugInfo	Determines whether application debug information is built
	$Define	Defines a compiler directive symbol - as used by IfDef
	$DefinitionInfo	Determines whether application symbol information is built
	$Else	Starts the alternate section of an IfDef or IfNDef
	$EndIf	Terminates conditional code compilation
	$ExtendedSyntax	Controls some Pascal extension handling
	$H	Treat string types as AnsiString or ShortString
	$Hints	Determines whether Delphi shows compilation hints
	$I	Allows code in an include file to be incorporated into a Unit
	$IfDef	Executes code if a conditional symbol has been defined
	$IfNDef	Executes code if a conditional symbol has not been defined
	$IfOpt	Tests for the state of a Compiler directive
	$Include	Allows code in an include file to be incorporated into a Unit
	$IOChecks	When on, an IO operation error throws an exception
	$L	Determines what application debug information is built
	$LocalSymbols	Determines what application debug information is built
	$LongStrings	Treat string types as AnsiString or ShortString
	$MinEnumSize	Sets the minimum storage used to hold enumerated types
	$O	Determines whether Delphi optimises code when compiling
	$Optimization	Determines whether Delphi optimises code when compiling
	$OverFlowChecks	Determines whether Delphi checks integer and enum bounds
	$Q	Determines whether Delphi checks integer and enum bounds
	$R	Determines whether Delphi checks array bounds
	$RangeChecks	Determines whether Delphi checks array bounds
	$ReferenceInfo	Determines whether symbol reference information is built
	$Resource	Defines a resource file to be included in the application linking
	$UnDef	Undefines a compiler directive symbol - as used by IfDef
	$Warnings	Determines whether Delphi shows compilation warnings
	$X	Controls some Pascal extension handling
	$Y	Determines whether application symbol information is built
	$Z	Sets the minimum storage used to hold enumerated types

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