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digitalmars.D.bugs - Conflicting arguments that don't conflict

reply J C Calvarese <jcc7 cox.net> writes:
Content-Type: text/plain; charset=us-ascii; format=flowed
Content-Transfer-Encoding: 7bit

(I originally posted this as 
D/27445, but I didn't label 
it as a bug, so Walter may have missed it.)

I think the problem is caused by the necessary types being defined in 
the private scope in each file. I guess I know how to *solve* it, but I
still wonder whether it's an *error* or a *bug*. If it's an error, I'd
like to understand what's actually wrong with the code.


Here's my error message:

direct.d(25): function Blt
(tagRECT *,IDirectDrawSurface ,tagRECT *,uint,DDBLTFX *)
does not match argument types
(tagRECT *,IDirectDrawSurface ,tagRECT *,uint,DDBLTFX *)


This bug still occurs in DMD 0.86.


/* *** *** directdraw.d *** *** */

module directdraw;

private
{
      alias int HRESULT;
      alias uint DWORD;

      struct tagRECT{}
      alias tagRECT* LPRECT;
}

extern(Windows)
{
      alias IDirectDrawSurface LPDIRECTDRAWSURFACE;
      struct DDBLTFX{}

      interface IDirectDrawSurface
      {
      HRESULT Blt(LPRECT, LPDIRECTDRAWSURFACE, LPRECT, DWORD, DDBLTFX*);
      }
}

enum: uint { DDBLT_WAIT = 0x01000000 }



/* *** *** direct.d *** *** */

module direct;

private import directdraw;

private
{
      struct tagRECT{}
      alias tagRECT RECT;
      alias tagRECT* LPRECT;
}

class DirectApp
{
      IDirectDrawSurface primSurface;
      IDirectDrawSurface backingSurface;

      public this(){}

      public void updatePrimarySurface()
      {
          RECT source;
          RECT destination;
          primSurface.Blt(
              cast(tagRECT*) &destination, /* line 25 */
              cast(IDirectDrawSurface) backingSurface,
              cast(tagRECT*) &source,
              cast(uint) DDBLT_WAIT,
              cast(DDBLTFX*) null );
      }
}

-- 
Justin
http://jcc_7.tripod.com/d/
May 03 2004
parent reply "Walter" <newshound digitalmars.com> writes:
This can be way, way cut down into a smaller example!

"J C Calvarese" <jcc7 cox.net> wrote in message
news:c76kf9$ph0$1 digitaldaemon.com...
 (I originally posted this as
 D/27445, but I didn't label
 it as a bug, so Walter may have missed it.)

 I think the problem is caused by the necessary types being defined in
 the private scope in each file. I guess I know how to *solve* it, but I
 still wonder whether it's an *error* or a *bug*. If it's an error, I'd
 like to understand what's actually wrong with the code.


 Here's my error message:

 direct.d(25): function Blt
 (tagRECT *,IDirectDrawSurface ,tagRECT *,uint,DDBLTFX *)
 does not match argument types
 (tagRECT *,IDirectDrawSurface ,tagRECT *,uint,DDBLTFX *)


 This bug still occurs in DMD 0.86.


 /* *** *** directdraw.d *** *** */

 module directdraw;

 private
 {
       alias int HRESULT;
       alias uint DWORD;

       struct tagRECT{}
       alias tagRECT* LPRECT;
 }

 extern(Windows)
 {
       alias IDirectDrawSurface LPDIRECTDRAWSURFACE;
       struct DDBLTFX{}

       interface IDirectDrawSurface
       {
       HRESULT Blt(LPRECT, LPDIRECTDRAWSURFACE, LPRECT, DWORD, DDBLTFX*);
       }
 }

 enum: uint { DDBLT_WAIT = 0x01000000 }



 /* *** *** direct.d *** *** */

 module direct;

 private import directdraw;

 private
 {
       struct tagRECT{}
       alias tagRECT RECT;
       alias tagRECT* LPRECT;
 }

 class DirectApp
 {
       IDirectDrawSurface primSurface;
       IDirectDrawSurface backingSurface;

       public this(){}

       public void updatePrimarySurface()
       {
           RECT source;
           RECT destination;
           primSurface.Blt(
               cast(tagRECT*) &destination, /* line 25 */
               cast(IDirectDrawSurface) backingSurface,
               cast(tagRECT*) &source,
               cast(uint) DDBLT_WAIT,
               cast(DDBLTFX*) null );
       }
 }

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

---------------------------------------------------------------------------- ----
  echo off
 dmd direct.d -c
 pause
 echo.

---------------------------------------------------------------------------- ----
 module direct;

 private import directdraw;

 private
 {
     struct tagRECT{}
     alias tagRECT RECT;
     alias tagRECT* LPRECT;
 }

 class DirectApp
 {

 IDirectDrawSurface primSurface;
 IDirectDrawSurface backingSurface;

 public this(){}

 public void updatePrimarySurface()
 {
 RECT source;
 RECT destination;
 primSurface.Blt(
             cast(tagRECT*) &destination,
             cast(IDirectDrawSurface) backingSurface,
             cast(tagRECT*) &source,
             cast(uint) DDBLT_WAIT,
             cast(DDBLTFX*) null );
 }
 }

---------------------------------------------------------------------------- ----
 module directdraw;

 private
 {
     alias int HRESULT;
     alias uint DWORD;

     struct tagRECT{}
     alias tagRECT* LPRECT;
 }

 extern(Windows)
 {
 alias IDirectDrawSurface LPDIRECTDRAWSURFACE;
 struct DDBLTFX{}

 interface IDirectDrawSurface
 {
         HRESULT Blt(LPRECT, LPDIRECTDRAWSURFACE, LPRECT, DWORD, DDBLTFX*);
     }
 }

 enum: uint { DDBLT_WAIT = 0x01000000 }

May 24 2004
next sibling parent J C Calvarese <jcc7 cox.net> writes:
Walter wrote:
 This can be way, way cut down into a smaller example!

I started about with something like 700kb. I though you might appreciate how far I got.
 
 "J C Calvarese" <jcc7 cox.net> wrote in message
 news:c76kf9$ph0$1 digitaldaemon.com...
 
(I originally posted this as
D/27445, but I didn't label
it as a bug, so Walter may have missed it.)

I think the problem is caused by the necessary types being defined in
the private scope in each file. I guess I know how to *solve* it, but I
still wonder whether it's an *error* or a *bug*. If it's an error, I'd
like to understand what's actually wrong with the code.


Here's my error message:

direct.d(25): function Blt
(tagRECT *,IDirectDrawSurface ,tagRECT *,uint,DDBLTFX *)
does not match argument types
(tagRECT *,IDirectDrawSurface ,tagRECT *,uint,DDBLTFX *)


This bug still occurs in DMD 0.86.


/* *** *** directdraw.d *** *** */

module directdraw;

private
{
      alias int HRESULT;
      alias uint DWORD;

      struct tagRECT{}
      alias tagRECT* LPRECT;
}

extern(Windows)
{
      alias IDirectDrawSurface LPDIRECTDRAWSURFACE;
      struct DDBLTFX{}

      interface IDirectDrawSurface
      {
      HRESULT Blt(LPRECT, LPDIRECTDRAWSURFACE, LPRECT, DWORD, DDBLTFX*);
      }
}

enum: uint { DDBLT_WAIT = 0x01000000 }



/* *** *** direct.d *** *** */

module direct;

private import directdraw;

private
{
      struct tagRECT{}
      alias tagRECT RECT;
      alias tagRECT* LPRECT;
}

class DirectApp
{
      IDirectDrawSurface primSurface;
      IDirectDrawSurface backingSurface;

      public this(){}

      public void updatePrimarySurface()
      {
          RECT source;
          RECT destination;
          primSurface.Blt(
              cast(tagRECT*) &destination, /* line 25 */
              cast(IDirectDrawSurface) backingSurface,
              cast(tagRECT*) &source,
              cast(uint) DDBLT_WAIT,
              cast(DDBLTFX*) null );
      }
}

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

---------------------------------------------------------------------------- ----
 echo off
dmd direct.d -c
pause
echo.

---------------------------------------------------------------------------- ----
module direct;

private import directdraw;

private
{
    struct tagRECT{}
    alias tagRECT RECT;
    alias tagRECT* LPRECT;
}

class DirectApp
{

IDirectDrawSurface primSurface;
IDirectDrawSurface backingSurface;

public this(){}

public void updatePrimarySurface()
{
RECT source;
RECT destination;
primSurface.Blt(
            cast(tagRECT*) &destination,
            cast(IDirectDrawSurface) backingSurface,
            cast(tagRECT*) &source,
            cast(uint) DDBLT_WAIT,
            cast(DDBLTFX*) null );
}
}

---------------------------------------------------------------------------- ----
module directdraw;

private
{
    alias int HRESULT;
    alias uint DWORD;

    struct tagRECT{}
    alias tagRECT* LPRECT;
}

extern(Windows)
{
alias IDirectDrawSurface LPDIRECTDRAWSURFACE;
struct DDBLTFX{}

interface IDirectDrawSurface
{
        HRESULT Blt(LPRECT, LPDIRECTDRAWSURFACE, LPRECT, DWORD, DDBLTFX*);
    }
}

enum: uint { DDBLT_WAIT = 0x01000000 }


-- Justin (a/k/a jcc7) http://jcc_7.tripod.com/d/
May 24 2004
prev sibling parent reply J C Calvarese <jcc7 cox.net> writes:
Content-Type: text/plain; charset=us-ascii; format=flowed
Content-Transfer-Encoding: 7bit

Walter wrote:
 This can be way, way cut down into a smaller example!

I guess I'll take that as a request. By the way, the error message has gotten more interesting: a.d(17): function Blt (R *) does not match argument types (R *) a.d(17): cannot implicitly convert R * to R *
 "J C Calvarese" <jcc7 cox.net> wrote in message
 news:c76kf9$ph0$1 digitaldaemon.com...
 
(I originally posted this as
D/27445, but I didn't label
it as a bug, so Walter may have missed it.)

I think the problem is caused by the necessary types being defined in
the private scope in each file. I guess I know how to *solve* it, but I
still wonder whether it's an *error* or a *bug*. If it's an error, I'd
like to understand what's actually wrong with the code.


Here's my error message:

direct.d(25): function Blt
(tagRECT *,IDirectDrawSurface ,tagRECT *,uint,DDBLTFX *)
does not match argument types
(tagRECT *,IDirectDrawSurface ,tagRECT *,uint,DDBLTFX *)


This bug still occurs in DMD 0.86.


/* *** *** directdraw.d *** *** */

module directdraw;

private
{
      alias int HRESULT;
      alias uint DWORD;

      struct tagRECT{}
      alias tagRECT* LPRECT;
}

extern(Windows)
{
      alias IDirectDrawSurface LPDIRECTDRAWSURFACE;
      struct DDBLTFX{}

      interface IDirectDrawSurface
      {
      HRESULT Blt(LPRECT, LPDIRECTDRAWSURFACE, LPRECT, DWORD, DDBLTFX*);
      }
}

enum: uint { DDBLT_WAIT = 0x01000000 }



/* *** *** direct.d *** *** */

module direct;

private import directdraw;

private
{
      struct tagRECT{}
      alias tagRECT RECT;
      alias tagRECT* LPRECT;
}

class DirectApp
{
      IDirectDrawSurface primSurface;
      IDirectDrawSurface backingSurface;

      public this(){}

      public void updatePrimarySurface()
      {
          RECT source;
          RECT destination;
          primSurface.Blt(
              cast(tagRECT*) &destination, /* line 25 */
              cast(IDirectDrawSurface) backingSurface,
              cast(tagRECT*) &source,
              cast(uint) DDBLT_WAIT,
              cast(DDBLTFX*) null );
      }
}

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

---------------------------------------------------------------------------- ----
 echo off
dmd direct.d -c
pause
echo.

---------------------------------------------------------------------------- ----
module direct;

private import directdraw;

private
{
    struct tagRECT{}
    alias tagRECT RECT;
    alias tagRECT* LPRECT;
}

class DirectApp
{

IDirectDrawSurface primSurface;
IDirectDrawSurface backingSurface;

public this(){}

public void updatePrimarySurface()
{
RECT source;
RECT destination;
primSurface.Blt(
            cast(tagRECT*) &destination,
            cast(IDirectDrawSurface) backingSurface,
            cast(tagRECT*) &source,
            cast(uint) DDBLT_WAIT,
            cast(DDBLTFX*) null );
}
}

---------------------------------------------------------------------------- ----
module directdraw;

private
{
    alias int HRESULT;
    alias uint DWORD;

    struct tagRECT{}
    alias tagRECT* LPRECT;
}

extern(Windows)
{
alias IDirectDrawSurface LPDIRECTDRAWSURFACE;
struct DDBLTFX{}

interface IDirectDrawSurface
{
        HRESULT Blt(LPRECT, LPDIRECTDRAWSURFACE, LPRECT, DWORD, DDBLTFX*);
    }
}

enum: uint { DDBLT_WAIT = 0x01000000 }


-- Justin (a/k/a jcc7) http://jcc_7.tripod.com/d/
May 24 2004
parent "Walter" <newshound digitalmars.com> writes:
Ah, that's better! Thanks.

"J C Calvarese" <jcc7 cox.net> wrote in message
news:c8ufh5$23ql$1 digitaldaemon.com...
 Walter wrote:
 This can be way, way cut down into a smaller example!

I guess I'll take that as a request.

---------------------------------------------------------------------------- ----
  echo off
 dmd a.d -c
 pause
 echo.

---------------------------------------------------------------------------- ----
 module a;

 private import b;

 private
 {
     struct R{}
 }

 class DiRApp
 {
 I primS, backingS;

 public void upd()
 {
 R source;
 primS.Blt(&source);
 }
 }

---------------------------------------------------------------------------- ----
 module b;

 private
 {
     struct R{}
 }

 struct DDB{}

 interface I
 {
     int Blt(R*);
 }

May 24 2004