D - array declaration bug

"Pavel Minayev" <evilone omen.ru> Dec 24 2001

Lars Ivar Igesund <larsivar igesund.net> Mar 11 2004

=?ISO-8859-1?Q?Julio_Jim=E9nez?= <jujibo inicia.es> Mar 11 2004

Lars Ivar Igesund <larsivar igesund.net> Mar 11 2004

=?ISO-8859-1?Q?Julio_Jim=E9nez?= <jujibo inicia.es> Mar 11 2004
J C Calvarese <jcc7 cox.net> Mar 11 2004
"Walter" <walter digitalmars.com> Mar 11 2004

=?ISO-8859-1?Q?Julio_Jim=E9nez?= <jujibo inicia.es> Mar 11 2004

Lars Ivar Igesund <larsivar igesund.net> Mar 14 2004

=?ISO-8859-1?Q?Julio_Jim=E9nez?= <jujibo inicia.es> Mar 14 2004

Lars Ivar Igesund <larsivar igesund.net> Mar 14 2004

Russ Lewis <spamhole-2001-07-16 deming-os.org> Mar 15 2004

"Pavel Minayev" <evilone omen.ru> writes:

The following code (from WinAPI headers) doesn't compile:

    const int SIZE_OF_80387_REGISTERS = 80;
    ubyte[1 + SIZE_OF_80387_REGISTERS - 1] RegisterArea;

It tells that "integer constant expression" is expected...

Dec 24 2001

Lars Ivar Igesund <larsivar igesund.net> writes:

Pavel Minayev wrote:
 The following code (from WinAPI headers) doesn't compile:
 
     const int SIZE_OF_80387_REGISTERS = 80;
     ubyte[1 + SIZE_OF_80387_REGISTERS - 1] RegisterArea;
 
 It tells that "integer constant expression" is expected...
 


This still don't work. The spec don't say anything about it, but
'const int FOO = 1' is certainly an 'integer constant expression'
in my eyes.

Lars Ivar Igesund

Mar 11 2004

=?ISO-8859-1?Q?Julio_Jim=E9nez?= <jujibo inicia.es> writes:

Lars Ivar Igesund wrote:
 Pavel Minayev wrote:
 
 The following code (from WinAPI headers) doesn't compile:

     const int SIZE_OF_80387_REGISTERS = 80;
     ubyte[1 + SIZE_OF_80387_REGISTERS - 1] RegisterArea;

 It tells that "integer constant expression" is expected...


 This still don't work. The spec don't say anything about it, but
 'const int FOO = 1' is certainly an 'integer constant expression'
 in my eyes.
 
 Lars Ivar Igesund
 
 


Don't work?

void main()
{
   const int SIZE_OF_80387_REGISTERS = 80;
   ubyte[1 + SIZE_OF_80387_REGISTERS - 1] RegisterArea;
   printf("RegisterArea.size = %d\n", RegisterArea.size);
}

Output:

	RegisterArea.size = 80

DMD 0.81 for linux


Julio

Mar 11 2004

Lars Ivar Igesund <larsivar igesund.net> writes:

Julio Jim�nez wrote:

 Lars Ivar Igesund wrote:
 
 Pavel Minayev wrote:

 The following code (from WinAPI headers) doesn't compile:

     const int SIZE_OF_80387_REGISTERS = 80;
     ubyte[1 + SIZE_OF_80387_REGISTERS - 1] RegisterArea;

 It tells that "integer constant expression" is expected...


 This still don't work. The spec don't say anything about it, but
 'const int FOO = 1' is certainly an 'integer constant expression'
 in my eyes.

 Lars Ivar Igesund


 Don't work?
 
 void main()
 {
   const int SIZE_OF_80387_REGISTERS = 80;
   ubyte[1 + SIZE_OF_80387_REGISTERS - 1] RegisterArea;
   printf("RegisterArea.size = %d\n", RegisterArea.size);
 }
 
 Output:
 
     RegisterArea.size = 80
 
 DMD 0.81 for linux
 
 
 Julio
 


Wrong circumstances. (My cancelled message was plain wrong, btw).

---- array.d ------

const int FOO = 100;
int[FOO] arr;

-------------------

don't compile at all.

Lars Ivar Igesund

Mar 11 2004

=?ISO-8859-1?Q?Julio_Jim=E9nez?= <jujibo inicia.es> writes:

Lars Ivar Igesund wrote:
 Julio Jim�nez wrote:
 
 Lars Ivar Igesund wrote:

 Pavel Minayev wrote:

 The following code (from WinAPI headers) doesn't compile:

     const int SIZE_OF_80387_REGISTERS = 80;
     ubyte[1 + SIZE_OF_80387_REGISTERS - 1] RegisterArea;

 It tells that "integer constant expression" is expected...


 This still don't work. The spec don't say anything about it, but
 'const int FOO = 1' is certainly an 'integer constant expression'
 in my eyes.

 Lars Ivar Igesund


 Don't work?

 void main()
 {
   const int SIZE_OF_80387_REGISTERS = 80;
   ubyte[1 + SIZE_OF_80387_REGISTERS - 1] RegisterArea;
   printf("RegisterArea.size = %d\n", RegisterArea.size);
 }

 Output:

     RegisterArea.size = 80

 DMD 0.81 for linux


 Julio


 Wrong circumstances. (My cancelled message was plain wrong, btw).
 
 ---- array.d ------
 
 const int FOO = 100;
 int[FOO] arr;
 
 -------------------
 
 don't compile at all.
 
 Lars Ivar Igesund



void main()
{
   const int SIZE_OF_80387_REGISTERS = 80;
   ubyte[1 + SIZE_OF_80387_REGISTERS - 1] RegisterArea;
   printf("RegisterArea.size = %d\n", RegisterArea.size);
   const int FOO = 100;
   int [FOO] arr;
   printf("arr.size = %d\n", arr.size);
}

Output:

RegisterArea.size = 80
arr.size = 400

That's all right.....

What dmd version do you have?


regards


Julio

Mar 11 2004

J C Calvarese <jcc7 cox.net> writes:

Lars Ivar Igesund wrote:
 


 
 Wrong circumstances. (My cancelled message was plain wrong, btw).
 
 ---- array.d ------
 
 const int FOO = 100;
 int[FOO] arr;
 
 -------------------
 
 don't compile at all.


It compiles for me (on WinXP Home), but it doesn't link (there's no main).

build.bat:
    echo off
   dmd array.d -c
   pause

Output:
   Press any key to continue . . .


If I add a main it compiles, links, and runs.

array.d:
   const int FOO = 100;
   int[FOO] arr;

   void main()
   { printf("It works for me.\n"); }

Output:
   d:\dmd\bin\..\..\dm\bin\link.exe array,,,user32+kernel32/noi;
   It works for me.
   Press any key to continue . . .


HTH

 
 Lars Ivar Igesund



-- 
Justin
http://jcc_7.tripod.com/d/

Mar 11 2004

"Walter" <walter digitalmars.com> writes:

"Lars Ivar Igesund" <larsivar igesund.net> wrote in message
news:c2qj99$pvh$3 digitaldaemon.com...
 ---- array.d ------

 const int FOO = 100;
 int[FOO] arr;

 -------------------

 don't compile at all.


It works when I try it:

-------------------------------
C:\cbx\mars>type test.d
const int FOO = 100;
int[FOO] arr;


C:\cbx\mars>dmd -c test

C:\cbx\mars>obj2asm test
_TEXT   segment dword use32 public 'CODE'       ;size is 0
_TEXT   ends
_DATA   segment para use32 public 'DATA'        ;size is 4
_DATA   ends
CONST   segment para use32 public 'CONST'       ;size is 0
CONST   ends
_BSS    segment para use32 public 'BSS' ;size is 400
_BSS    ends
FLAT    group

        public  _D4test3FOOi
        public  _D4test3arrG100i
_TEXT   segment
        assume  CS:_TEXT
_TEXT   ends
_DATA   segment
_D4test3FOOi:
        db      064h,000h,000h,000h
_DATA   ends
CONST   segment
CONST   ends
_BSS    segment
_BSS    ends
        end

C:\cbx\mars>

Mar 11 2004

=?ISO-8859-1?Q?Julio_Jim=E9nez?= <jujibo inicia.es> writes:

Lars Ivar Igesund wrote:

 
 Sorry. I meant static arrays:
 
 const int FOO = 100;
 static int [FOO] arr;
 
 I also see that I don't need the static part, so I drop the charges.
 
 Lars Ivar Igesund
 


void main()
{
   const int SIZE_OF_80387_REGISTERS = 80;
   ubyte[1 + SIZE_OF_80387_REGISTERS - 1] RegisterArea;
   printf("RegisterArea.size = %d\n", RegisterArea.size);
   const int FOO = 100;
   static int [FOO] arr;
   printf("arr.size = %d\n", arr.size);
}


Output:

RegisterArea.size = 80
arr.size = 400

It's ok.... ;-)
(int size = 4 bytes)

Regards



Julio

Mar 11 2004

Lars Ivar Igesund <larsivar igesund.net> writes:

Lars Ivar Igesund wrote:
 Pavel Minayev wrote:
 
 The following code (from WinAPI headers) doesn't compile:

     const int SIZE_OF_80387_REGISTERS = 80;
     ubyte[1 + SIZE_OF_80387_REGISTERS - 1] RegisterArea;

 It tells that "integer constant expression" is expected...


 This still don't work. The spec don't say anything about it, but
 'const int FOO = 1' is certainly an 'integer constant expression'
 in my eyes.
 
 Lars Ivar Igesund
 
 


I'm sorry about the fuzz here, but the bug is there somewhat.
What I really did was this:
----------------------
array.d
----------------------
char [FOO] array;
const int FOO = 100;

int main()
{
   return 0;
}
----------------------

This don't compile with dmd 0.81 with the message
"array.d(1): Integer constant expression expected instead of FOO"

If I switch lines 1 and 2, it works. It's a bug IMHO but the
workaround is simple.

Lars Ivar Igesund

Mar 14 2004

=?ISO-8859-1?Q?Julio_Jim=E9nez?= <jujibo inicia.es> writes:

Lars Ivar Igesund wrote:
 Lars Ivar Igesund wrote:
 
 Pavel Minayev wrote:

 The following code (from WinAPI headers) doesn't compile:

     const int SIZE_OF_80387_REGISTERS = 80;
     ubyte[1 + SIZE_OF_80387_REGISTERS - 1] RegisterArea;

 It tells that "integer constant expression" is expected...


 This still don't work. The spec don't say anything about it, but
 'const int FOO = 1' is certainly an 'integer constant expression'
 in my eyes.

 Lars Ivar Igesund


 I'm sorry about the fuzz here, but the bug is there somewhat.
 What I really did was this:
 ----------------------
 array.d
 ----------------------char [FOO] array;



int main()
{
   return 0;
}
 char [FOO] array;
 const int FOO = 100;
 
 int main()
 {
   return 0;
 }
 ----------------------
 
 This don't compile with dmd 0.81 with the message
 "array.d(1): Integer constant expression expected instead of FOO"
 
 If I switch lines 1 and 2, it works. It's a bug IMHO but the
 workaround is simple.
 
 Lars Ivar Igesund


He He.....

You are trying to use FOO before define it..... ;-)
change the lines order to....

const int FOO = 100;
char [FOO] array;

int main()
{
   return 0;
}

and compiles ok

regards again...

Julio

Mar 14 2004

Lars Ivar Igesund <larsivar igesund.net> writes:

Julio Jim�nez wrote:

 Lars Ivar Igesund wrote:
 
 Lars Ivar Igesund wrote:

 Pavel Minayev wrote:

 The following code (from WinAPI headers) doesn't compile:

     const int SIZE_OF_80387_REGISTERS = 80;
     ubyte[1 + SIZE_OF_80387_REGISTERS - 1] RegisterArea;

 It tells that "integer constant expression" is expected...


 This still don't work. The spec don't say anything about it, but
 'const int FOO = 1' is certainly an 'integer constant expression'
 in my eyes.

 Lars Ivar Igesund


 I'm sorry about the fuzz here, but the bug is there somewhat.
 What I really did was this:
 ----------------------
 array.d
 ----------------------char [FOO] array;


 const int FOO = 100;
 
 int main()
 {
   return 0;
 }
 
 char [FOO] array;
 const int FOO = 100;

 int main()
 {
   return 0;
 }
 ----------------------

 This don't compile with dmd 0.81 with the message
 "array.d(1): Integer constant expression expected instead of FOO"

 If I switch lines 1 and 2, it works. It's a bug IMHO but the
 workaround is simple.

 Lars Ivar Igesund


 
 He He.....
 
 You are trying to use FOO before define it..... ;-)
 change the lines order to....
 
 const int FOO = 100;
 char [FOO] array;
 
 int main()
 {
   return 0;
 }
 
 and compiles ok
 
 regards again...
 
 Julio
 


I accept this (and understand) but the error message imply that
the problem is something else than an undefined symbol.

Lars Ivar Igesund

Mar 14 2004

Russ Lewis <spamhole-2001-07-16 deming-os.org> writes:

I think that D is supposed to allow these types of forward declarations. 
  Certainly, it allows other types of forward declartions....

Russ

Lars Ivar Igesund wrote:
 I accept this (and understand) but the error message imply that
 the problem is something else than an undefined symbol.
 
 Lars Ivar Igesund

Mar 15 2004

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