Delphi CompilerVersion Constant / Compiler Conditional Defines

http://delphi.wikia.com/wiki/CompilerVersion_Constant

The CompilerVersion constant identifies the internal version number of the Delphi compiler.

It is defined in the System unit and may be referenced either in code just as any other constant:

if CompilerVersion = 20 then

sCompilerName := 'Delphi 2009';

or in conditional compiler expressions:

{$if CompilerVersion > 18}

// Delphi 2007 or later

{$ifend}

The CompilerVersion constant was introduced in Delphi 6 along with conditional expressions.

In earlier Delphi versions various compiler defined VERxxx symbols are used to determine compiler versions.

CompilerVersion values and the equivalent compiler defined symbols for the Delphi versions in which the CompilerVersion constant is defined are:

Compiler	CompilerVersion	Defined Symbol
Delphi XE5	26	VER260
Delphi XE4	25	VER250
Delphi XE3	24	VER240
Delphi XE2	23	VER230
Delphi XE	22	VER220
Delphi 2010	21	VER210
Delphi 2009	20	VER200
Delphi 2007 .NET	19	VER190
Delphi 2007	18.5	VER185
Delphi 2006	18	VER180
Delphi 2005	17	VER170
Delphi 8 .NET	16	VER160
Delphi 7	15	VER150
Delphi 6	14	VER140
Delphi 5	13	VER130
Delphi 4	12	VER120
Delphi 3	10	VER100
Delphi 2	9	VER90
Delphi 1	8	VER80

http://delphi.wikia.com/wiki/Borland_Compiler_Conditional_Defines

Product Name	Version	Conditional Define	CompilerVersion
Embarcadero RAD Studio XE5	19.0	VER260	26
Embarcadero RAD Studio XE4	18.0	VER250	25
Embarcadero RAD Studio XE3	17.0	VER240	24
Embarcadero RAD Studio XE2	16.0	VER230	23
Embarcadero RAD Studio XE	15.0	VER220	22
Embarcadero RAD Studio 2010	14.0	VER210	21
CodeGear C++ Builder 2009	12.0	VER200	20
CodeGear Delphi 2007 for .NET	11.0	VER190	19?
CodeGear Delphi 2007 for Win32	11.0	VER180 and VER185	18, 18.5
Borland Developer Studio 2006	10.0	VER180	18
Borland Delphi 2005	9.0	VER170	17
Borland Delphi 8 for .NET	8.0	VER160 *	16
C++BuilderX	?	?
Borland C#Builder	1.0	VER160 *
Borland Delphi 7	7.0	VER150	15
Borland Kylix 3	3.0	VER140 **
Borland C++Builder 6	?	VER140 **(!!)
Borland Kylix 2	2.0	VER140 **
Borland Delphi 6	6.0	VER140 **	14
Borland Kylix	1.0	VER140 **
Borland C++Builder 5	?	VER130 ***
Borland Delphi 5	5.0	VER130 ***
Borland C++Builder 4	?	VER125
Borland Delphi 4	4.0	VER120
Borland C++Builder 3	?	VER110 ****
Borland Delphi 3	3.0	VER100
Borland C++ 5	?	?
Borland C++Builder 1	?	VER93
Borland Delphi 2	2.0	VER90
Borland C++ 4.5	?	?
Borland Delphi	1.0	VER80
Borland C++ 4	?	?
Borland Pascal 7	7.0	VER70
Borland C++ 3.1	?	?
Turbo Pascal for Windows 1.5	1.5	VER70
Turbo C++ for DOS 3	?	?
Borland C++ 3	?	?
Turbo C++ for Windows 3 (Win16)	?	?
Turbo Pascal for Windows 1.0	1.0	???
Borland C++ 2	?	?
Turbo Pascal 6	6.0	VER60
Turbo C++ for DOS	?	?
Turbo C for DOS 2	?	?
Turbo Pascal 5.5	5.5	VER55
Turbo C for DOS 1.5	?	?
Turbo Pascal 5	5.0	VER50
Turbo Pascal 4	4.0	VER40
Turbo C for DOS	?	?
Turbo Pascal 3	3.0	???
Turbo Pascal 2	2.0	???
Turbo Pascal 1	1.0	???

* This conditional define is shared by the Delphi compilers used to build C#Builder 1 and Delphi 8, which do not natively support Delphi for Win32.

This define is used in the "IDE Integration Packs" that were released to Borland partners in order to allow IDE plugins like ModelMaker Code Explorer

(http://www.modelmakertools.com/code-explorer/index.html) and

Castalia (http://www.delphi-expert.com/castalia3) to be compiled.

** This conditional define is shared between C++Builder 6, Delphi 6, Kylix 1, 2, and 3

(Checking for the conditional define "LINUX" helps to determine whether the compiler is Kylix or Delphi and "BCB" can be used to determine if C++Builder is being used).

*** This conditional define is shared with C++Builder 5

**** C++Builder 3.0 used VER110 (it had its own version of the Delphi compiler included).

**** CompilerVersion (Delphi 6 or later) can be used with conditional directives like

{$IF CompilerVersion >= 20}  {$DEFINE CanUnicode}  {$IFEND}

or using code:

if System.CompilerVersion >= 22 then  <do something>;