int/void function question
March 16, 2000 03:32 PM
Okay, I know that this question will pretty much sound like a newbie question, but believe me, it''s not. I often get these errors, figure out what''s wrong, and forget what they meant. Can someone help me:
--------------------Configuration: GDIPong - Win32 Debug--------------------
Compiling...
GDIPMain.cpp
c:\windows\desktop\mine\programming stuff\c++ files\gdipong\gdipmain.cpp(201) : error C2556: ''int __thiscall paddle::draw_paddle(struct HDC__ *,int,int)'' : overloaded function differs only by return type from ''void __thiscall paddle::draw_paddle(str
uct HDC__ *,int,int)''
c:\windows\desktop\mine\programming stuff\c++ files\gdipong\gdipmain.h(14) : see declaration of ''draw_paddle''
c:\windows\desktop\mine\programming stuff\c++ files\gdipong\gdipmain.cpp(201) : error C2371: ''draw_paddle'' : redefinition; different basic types
c:\windows\desktop\mine\programming stuff\c++ files\gdipong\gdipmain.h(14) : see declaration of ''draw_paddle''
c:\windows\desktop\mine\programming stuff\c++ files\gdipong\gdipmain.cpp(241) : error C2556: ''int __thiscall ball::draw_ball(struct HDC__ *,int,int)'' : overloaded function differs only by return type from ''void __thiscall ball::draw_ball(struct HDC_
_ *,int,int)''
c:\windows\desktop\mine\programming stuff\c++ files\gdipong\gdipmain.h(25) : see declaration of ''draw_ball''
c:\windows\desktop\mine\programming stuff\c++ files\gdipong\gdipmain.cpp(241) : error C2371: ''draw_ball'' : redefinition; different basic types
c:\windows\desktop\mine\programming stuff\c++ files\gdipong\gdipmain.h(25) : see declaration of ''draw_ball''
Error executing cl.exe.
GDIPMain.obj - 4 error(s), 0 warning(s)
In case it really matters (or you couldn''t tell), I''m running VC++ 6.0. Thanks for any help.
If you code it, they will come...
Commander M
http://commanderm.8m.com
cmndrm@commanderm.8m.com
250
March 16, 2000 03:49 PM
You need to declare (header file) and define (source file) functions the exact same way, except for the semi-colon at the end of the header file declaration. It looks to me like you might have accidentally left-off the return type in one place.
Header files should have (I'm guessing at the parameters):
Source files should have:
Hope that helps
Edited by - Stoffel on 3/16/00 3:50:36 PM
Header files should have (I'm guessing at the parameters):
class paddle{ //... void draw_paddle (HDC, int, int); //...};class ball{ //... void draw_ball (HDC, int, int); //...}; Source files should have:
void paddle::draw_paddle (HDC dc, int x, int y){ //...}void ball::draw_ball (HDC dc, int x, int y){ //...} Hope that helps
Edited by - Stoffel on 3/16/00 3:50:36 PM
March 16, 2000 04:14 PM
Hehehe. Of course. I kinda neglected putting void in front of ball::draw...
Funny... I don''t think I''ve ever done that before with anything, and this is the only time that I''ve gotten errors for that reason. Thanks.
If you code it, they will come...
Commander M
http://commanderm.8m.com
cmndrm@commanderm.8m.com
Funny... I don''t think I''ve ever done that before with anything, and this is the only time that I''ve gotten errors for that reason. Thanks.
If you code it, they will come...
Commander M
http://commanderm.8m.com
cmndrm@commanderm.8m.com
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