DMD 0.125 on Linux.

: import std.stdio;
:
: void main (char[][] args)
: {
:       if (args.length = 2) {
:               writefln("2");
:       }
:       version (BUG) {
:               else if (args.length == 3) {
:                       writefln("3");
:               }
:       }
: }

$ dmd verelif.d
verelif.d(9): found 'else' instead of statement
verelif.d(13): unrecognized declaration

$ dmd -version=BUG verelif.d
verelif.d(9): found 'else' instead of statement
verelif.d(13): unrecognized declaration

On Wed, 1 Jun 2005 07:56:16 +0000 (UTC),
derick_eddington@nospam.yashmoo.com wrote:

> DMD 0.125 on Linux.
> 
>: import std.stdio;
>:
>: void main (char[][] args)
>: {
>:       if (args.length = 2) {
>:               writefln("2");
>:       }
>:       version (BUG) {
>:               else if (args.length == 3) {
>:                       writefln("3");
>:               }
>:       }
>: }
> 
> $ dmd verelif.d
> verelif.d(9): found 'else' instead of statement
> verelif.d(13): unrecognized declaration
> 
> $ dmd -version=BUG verelif.d
> verelif.d(9): found 'else' instead of statement
> verelif.d(13): unrecognized declaration

The docs say that the body of a version block must be valid D statements, and 'else' never starts a valid D statement. So its not a bug.

Try rearranging it thus ...

 void main (char[][] args)
 {
       if (args.length == 2) {
               writefln("2");
       }
       else
       version (BUG) {
               if (args.length == 3) {
                       writefln("3");
               }
       }
 }

-- 
Derek
Melbourne, Australia
1/06/2005 6:39:25 PM

derick_eddington@nospam.yashmoo.com wrote:
> DMD 0.125 on Linux.
> 
> : import std.stdio;
> :
> : void main (char[][] args)
> : {
> :       if (args.length = 2) {
> :               writefln("2");
> :       }
> :       version (BUG) {
> :               else if (args.length == 3) {
> :                       writefln("3");
> :               }
> :       }
> : }
> 
> $ dmd verelif.d
> verelif.d(9): found 'else' instead of statement
> verelif.d(13): unrecognized declaration
> 
> $ dmd -version=BUG verelif.d
> verelif.d(9): found 'else' instead of statement
> verelif.d(13): unrecognized declaration
> 
> 

This is not a bug.
Your sample code violates the syntax defined in
http://www.digitalmars.com/d/version.html

	ConditionalDeclaration:
	    Condition DeclarationBlock
	    Condition DeclarationBlock else DeclarationBlock

	DeclarationBlock:
	    Declaration
	    { Declarations }

	Declarations:
	    Declaration
	    Declaration Declarations

	ConditionalStatement:
	    Condition Statement
	    Condition Statement else Statement
	
	Condition:
	    VersionCondition
	    DebugCondition
	    StaticIfCondition
	    IfTypeCondition

"Derek Parnell" <derek@psych.ward> wrote in message news:g6j77wymnkft.9f9aw0m8symi$.dlg@40tude.net...
> Try rearranging it thus ...
>
> void main (char[][] args)
> {
>       if (args.length == 2) {
>               writefln("2");
>       }
>       else
>       version (BUG) {
>               if (args.length == 3) {
>                       writefln("3");
>               }
>       }
> }

Might have to have an extra set of {} after the version statement - or else anything after the version statement, if BUG is not defined, will be the "else" statement!

In article <d7npko$27fp$1@digitaldaemon.com>, Jarrett Billingsley says...
>
>"Derek Parnell" <derek@psych.ward> wrote in message news:g6j77wymnkft.9f9aw0m8symi$.dlg@40tude.net...
>> Try rearranging it thus ...
>>
>> void main (char[][] args)
>> {
>>       if (args.length == 2) {
>>               writefln("2");
>>       }
>>       else
>>       version (BUG) {
>>               if (args.length == 3) {
>>                       writefln("3");
>>               }
>>       }
>> }
>
>Might have to have an extra set of {} after the version statement - or else anything after the version statement, if BUG is not defined, will be the "else" statement!

I wondered about that too at first but it's not at all just textually including like I was assuming before.  version() is ConditionalStatement which is a Statement, and in this case it is always seen as the Statement of the 'else'.

For example:

>> void main (char[][] args)
>> {
>>       if (args.length == 2) {
>>               writefln("2");
>>       }
>>       else
>>       version (BUG) {
>>               if (args.length == 3) {
>>                       writefln("3");
>>               }
>>       }
>>       writefln("hmm");
>> }

$ dmd verelif.d     # no -version=BUG
$ ./verelif
hmm
$ ./verelif abc
2
hmm