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Bug 1097 - SDL_atomic.h creates compile errors in Visual Studio 2005
Summary: SDL_atomic.h creates compile errors in Visual Studio 2005
Status: RESOLVED FIXED
Alias: None
Product: SDL
Classification: Unclassified
Component: atomic (show other bugs)
Version: 2.0.3
Hardware: x86 Windows (All)
: P1 blocker
Assignee: Sam Lantinga
QA Contact: Sam Lantinga
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2011-01-21 01:52 UTC by John Wilson
Modified: 2015-05-26 13:29 UTC (History)
2 users (show)

See Also:

Attachments
Fix for Visual Studio 2005 (1.47 KB, patch)
2011-01-22 12:03 UTC, Sam Lantinga 		Details | Diff
View All Add an attachment (proposed patch, testcase, etc.)

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Description John Wilson 2011-01-21 01:52:11 UTC 
1>c:\program files\microsoft visual studio 8\vc\include\ivec.h(233) : error C2733: second C linkage of overloaded function 'cmpeq' not allowed
1>        c:\program files\microsoft visual studio 8\vc\include\ivec.h(233) : see declaration of 'cmpeq'

This is only the first of many errors regarding C linkage and overloaded functions. I traced it all back to SDL_atomic.h, where 'extern "C" {' is used, and while it is still in effect, 'intrin.h' is included, which leads to a long string of includes that end up at 'ivec.h'. This file uses function overloading and is not suitable for C linkage, thus I get lots of compiler errors in projects that use SDL.
Comment 1 Sam Lantinga 2011-01-21 09:38:57 UTC 
I assume you're working on a C++ project?

Does it work to close the C linkage around the include?

e.g.
}
#include <intrin.h>
extern "C" {
Comment 2 John Wilson 2011-01-21 19:29:13 UTC 
(In reply to comment #1)
> I assume you're working on a C++ project?
> 
> Does it work to close the C linkage around the include?
> 
> e.g.
> }
> #include <intrin.h>
> extern "C" {

Yes, I'm using C++. I tried what you suggested, and it made it through the whole of SDL.h without errors. However, my project includes SDL_opengl.h right after that, which leads to winnt.h and these 2 errors:

1>c:\program files\microsoft sdks\windows\v6.0a\include\winnt.h(3112) : error C2733: second C linkage of overloaded function '_interlockedbittestandset' not allowed
1>        c:\program files\microsoft sdks\windows\v6.0a\include\winnt.h(3109) : see declaration of '_interlockedbittestandset'
1>c:\program files\microsoft sdks\windows\v6.0a\include\winnt.h(3118) : error C2733: second C linkage of overloaded function '_interlockedbittestandreset' not allowed
1>        c:\program files\microsoft sdks\windows\v6.0a\include\winnt.h(3115) : see declaration of '_interlockedbittestandreset'

I would say that intrin.h and winnt.h are conflicting somehow, as I don't get those errors if I comment out the SDL_atomic header.

I found that if I defined _PREFIX_ it skips over that section of winnt.h and my project compiles successfully.
Comment 3 Sam Lantinga 2011-01-21 23:23:32 UTC 
*sigh*

What happens if you just put these in a file by themselves?
#include <intrin.h>
#include <windows.h>
#include <winnt.h>
Comment 4 Sam Lantinga 2011-01-21 23:27:28 UTC 
A little googling shows that this is a common problem.  Hmm.
Comment 5 Sam Lantinga 2011-01-21 23:28:55 UTC 
Are you using Visual Studio 2005?
Comment 6 Sam Lantinga 2011-01-21 23:32:41 UTC 
Nevermind, it's in the subject. :)
Comment 7 Sam Lantinga 2011-01-22 12:03:03 UTC 
Created attachment 556 [details]
Fix for Visual Studio 2005
Comment 8 Ryan C. Gordon 2011-08-21 00:37:23 UTC 
Fixing up some bug report metadata.

--ryan.
Comment 9 Ryan C. Gordon 2011-08-21 00:55:25 UTC 
Resolving bug: Sam committed the patch in Attachment #556 [details] as hg changeset 1e94e68525d5.

--ryan.
Comment 10 vol_ya 2014-08-12 15:02:55 UTC 
I have the same issue with VS 2008 and SDL 2.0.3.
Could you please look int this?
Comment 11 vol_ya 2014-08-12 15:04:40 UTC 
I'm trying to move from SDL 1.2.15 to SDL 2.0.3
Comment 12 vol_ya 2014-08-12 15:24:54 UTC 
Not sure if this error is related to "atomic" component, but anyway here is a part of the errors:


Error	12	error C2733: second C linkage of overloaded function 'cmpeq' not allowed	c:\program files (x86)\microsoft visual studio 9.0\vc\include\ivec.h	233
Error	14	error C2733: second C linkage of overloaded function 'cmpneq' not allowed	c:\program files (x86)\microsoft visual studio 9.0\vc\include\ivec.h	234
Error	20	error C2733: second C linkage of overloaded function 'unpack_low' not allowed	c:\program files (x86)\microsoft visual studio 9.0\vc\include\ivec.h	240
Error	22	error C2733: second C linkage of overloaded function 'unpack_high' not allowed	c:\program files (x86)\microsoft visual studio 9.0\vc\include\ivec.h	241
Error	24	error C2733: second C linkage of overloaded function 'cmpeq' not allowed	c:\program files (x86)\microsoft visual studio 9.0\vc\include\ivec.h	308
Error	26	error C2733: second C linkage of overloaded function 'cmpneq' not allowed	c:\program files (x86)\microsoft visual studio 9.0\vc\include\ivec.h	309
Error	28	error C2733: second C linkage of overloaded function 'unpack_low' not allowed	c:\program files (x86)\microsoft visual studio 9.0\vc\include\ivec.h	311
Error	30	error C2733: second C linkage of overloaded function 'unpack_high' not allowed	c:\program files (x86)\microsoft visual studio 9.0\vc\include\ivec.h	312
Error	33	error C2733: second C linkage of overloaded function 'cmpeq' not allowed	c:\program files (x86)\microsoft visual studio 9.0\vc\include\ivec.h	346
Error	35	error C2733: second C linkage of overloaded function 'cmpneq' not allowed	c:\program files (x86)\microsoft visual studio 9.0\vc\include\ivec.h	347
Error	37	error C2733: second C linkage of overloaded function 'unpack_low' not allowed	c:\program files (x86)\microsoft visual studio 9.0\vc\include\ivec.h	349
Error	39	error C2733: second C linkage of overloaded function 'unpack_high' not allowed	c:\program files (x86)\microsoft visual studio 9.0\vc\include\ivec.h	350
Error	41	error C2733: second C linkage of overloaded function 'operator *' not allowed	c:\program files (x86)\microsoft visual studio 9.0\vc\include\ivec.h	422
Error	43	error C2733: second C linkage of overloaded function 'cmpeq' not allowed	c:\program files (x86)\microsoft visual studio 9.0\vc\include\ivec.h	425
Error	45	error C2733: second C linkage of overloaded function 'cmpneq' not allowed	c:\program files (x86)\microsoft visual studio 9.0\vc\include\ivec.h	426
Error	47	error C2733: second C linkage of overloaded function 'cmpgt' not allowed	c:\program files (x86)\microsoft visual studio 9.0\vc\include\ivec.h	427
Error	49	error C2733: second C linkage of overloaded function 'cmplt' not allowed	c:\program files (x86)\microsoft visual studio 9.0\vc\include\ivec.h	428
Error	51	error C2733: second C linkage of overloaded function 'cmple' not allowed	c:\program files (x86)\microsoft visual studio 9.0\vc\include\ivec.h	429
Error	53	error C2733: second C linkage of overloaded function 'cmpge' not allowed	c:\program files (x86)\microsoft visual studio 9.0\vc\include\ivec.h	430
Error	55	error C2733: second C linkage of overloaded function 'unpack_low' not allowed	c:\program files (x86)\microsoft visual studio 9.0\vc\include\ivec.h	432
Error	57	error C2733: second C linkage of overloaded function 'unpack_high' not allowed	c:\program files (x86)\microsoft visual studio 9.0\vc\include\ivec.h	433
Error	63	error C2733: second C linkage of overloaded function 'operator *' not allowed	c:\program files (x86)\microsoft visual studio 9.0\vc\include\ivec.h	509
Error	65	error C2733: second C linkage of overloaded function 'cmpeq' not allowed	c:\program files (x86)\microsoft visual studio 9.0\vc\include\ivec.h	510
Error	67	error C2733: second C linkage of overloaded function 'cmpneq' not allowed	c:\program files (x86)\microsoft visual studio 9.0\vc\include\ivec.h	511
Error	69	error C2733: second C linkage of overloaded function 'sat_add' not allowed	c:\program files (x86)\microsoft visual studio 9.0\vc\include\ivec.h	513
Error	71	error C2733: second C linkage of overloaded function 'sat_sub' not allowed	c:\program files (x86)\microsoft visual studio 9.0\vc\include\ivec.h	514
Error	73	error C2733: second C linkage of overloaded function 'unpack_low' not allowed	c:\program files (x86)\microsoft visual studio 9.0\vc\include\ivec.h	516
Error	75	error C2733: second C linkage of overloaded function 'unpack_high' not allowed	c:\program files (x86)\microsoft visual studio 9.0\vc\include\ivec.h	517
Error	77	error C2733: second C linkage of overloaded function 'cmpeq' not allowed	c:\program files (x86)\microsoft visual studio 9.0\vc\include\ivec.h	544
Error	79	error C2733: second C linkage of overloaded function 'cmpneq' not allowed	c:\program files (x86)\microsoft visual studio 9.0\vc\include\ivec.h	545
Error	81	error C2733: second C linkage of overloaded function 'unpack_low' not allowed	c:\program files (x86)\microsoft visual studio 9.0\vc\include\ivec.h	547
Error	83	error C2733: second C linkage of overloaded function 'unpack_high' not allowed	c:\program files (x86)\microsoft visual studio 9.0\vc\include\ivec.h	548
Error	85	error C2733: second C linkage of overloaded function 'cmpeq' not allowed	c:\program files (x86)\microsoft visual studio 9.0\vc\include\ivec.h	617
Error	87	error C2733: second C linkage of overloaded function 'cmpneq' not allowed	c:\program files (x86)\microsoft visual studio 9.0\vc\include\ivec.h	618
Error	89	error C2733: second C linkage of overloaded function 'cmpgt' not allowed	c:\program files (x86)\microsoft visual studio 9.0\vc\include\ivec.h	619
Error	91	error C2733: second C linkage of overloaded function 'cmplt' not allowed	c:\program files (x86)\microsoft visual studio 9.0\vc\include\ivec.h	620
Error	93	error C2733: second C linkage of overloaded function 'cmple' not allowed	c:\program files (x86)\microsoft visual studio 9.0\vc\include\ivec.h	621
Error	95	error C2733: second C linkage of overloaded function 'cmpge' not allowed	c:\program files (x86)\microsoft visual studio 9.0\vc\include\ivec.h	622
Error	97	error C2733: second C linkage of overloaded function 'unpack_low' not allowed	c:\program files (x86)\microsoft visual studio 9.0\vc\include\ivec.h	624
Error	99	error C2733: second C linkage of overloaded function 'unpack_high' not allowed	c:\program files (x86)\microsoft visual studio 9.0\vc\include\ivec.h	625
Error	101	error C2733: second C linkage of overloaded function 'sat_add' not allowed	c:\program files (x86)\microsoft visual studio 9.0\vc\include\ivec.h	627
Error	103	error C2733: second C linkage of overloaded function 'sat_sub' not allowed	c:\program files (x86)\microsoft visual studio 9.0\vc\include\ivec.h	628
Error	105	error C2733: second C linkage of overloaded function 'cmpeq' not allowed	c:\program files (x86)\microsoft visual studio 9.0\vc\include\ivec.h	694
Error	107	error C2733: second C linkage of overloaded function 'cmpneq' not allowed	c:\program files (x86)\microsoft visual studio 9.0\vc\include\ivec.h	695
Error	109	error C2733: second C linkage of overloaded function 'unpack_low' not allowed	c:\program files (x86)\microsoft visual studio 9.0\vc\include\ivec.h	697
Error	111	error C2733: second C linkage of overloaded function 'unpack_high' not allowed	c:\program files (x86)\microsoft visual studio 9.0\vc\include\ivec.h	698
Error	113	error C2733: second C linkage of overloaded function 'sat_add' not allowed	c:\program files (x86)\microsoft visual studio 9.0\vc\include\ivec.h	700
Error	115	error C2733: second C linkage of overloaded function 'sat_sub' not allowed	c:\program files (x86)\microsoft visual studio 9.0\vc\include\ivec.h	701
Error	118	error C2733: second C linkage of overloaded function 'pack_sat' not allowed	c:\program files (x86)\microsoft visual studio 9.0\vc\include\ivec.h	704
Error	121	error C2733: second C linkage of overloaded function 'operator &' not allowed	c:\program files (x86)\microsoft visual studio 9.0\vc\include\ivec.h	718
Error	123	error C2733: second C linkage of overloaded function 'operator |' not allowed	c:\program files (x86)\microsoft visual studio 9.0\vc\include\ivec.h	718
Error	125	error C2733: second C linkage of overloaded function 'operator ^' not allowed	c:\program files (x86)\microsoft visual studio 9.0\vc\include\ivec.h	718
Error	127	error C2733: second C linkage of overloaded function 'andnot' not allowed	c:\program files (x86)\microsoft visual studio 9.0\vc\include\ivec.h	718
Error	129	error C2733: second C linkage of overloaded function 'operator &' not allowed	c:\program files (x86)\microsoft visual studio 9.0\vc\include\ivec.h	719
Error	131	error C2733: second C linkage of overloaded function 'operator |' not allowed	c:\program files (x86)\microsoft visual studio 9.0\vc\include\ivec.h	719
Error	133	error C2733: second C linkage of overloaded function 'operator ^' not allowed	c:\program files (x86)\microsoft visual studio 9.0\vc\include\ivec.h	719
Error	135	error C2733: second C linkage of overloaded function 'andnot' not allowed	c:\program files (x86)\microsoft visual studio 9.0\vc\include\ivec.h	719
Error	137	error C2733: second C linkage of overloaded function 'operator &' not allowed	c:\program files (x86)\microsoft visual studio 9.0\vc\include\ivec.h	720
Error	139	error C2733: second C linkage of overloaded function 'operator |' not allowed	c:\program files (x86)\microsoft visual studio 9.0\vc\include\ivec.h	720
Error	141	error C2733: second C linkage of overloaded function 'operator ^' not allowed	c:\program files (x86)\microsoft visual studio 9.0\vc\include\ivec.h	720
Error	143	error C2733: second C linkage of overloaded function 'andnot' not allowed	c:\program files (x86)\microsoft visual studio 9.0\vc\include\ivec.h	720
Error	145	error C2733: second C linkage of overloaded function 'operator &' not allowed	c:\program files (x86)\microsoft visual studio 9.0\vc\include\ivec.h	721
Error	147	error C2733: second C linkage of overloaded function 'operator |' not allowed	c:\program files (x86)\microsoft visual studio 9.0\vc\include\ivec.h	721
Error	149	error C2733: second C linkage of overloaded function 'operator ^' not allowed	c:\program files (x86)\microsoft visual studio 9.0\vc\include\ivec.h	721
Error	151	error C2733: second C linkage of overloaded function 'andnot' not allowed	c:\program files (x86)\microsoft visual studio 9.0\vc\include\ivec.h	721
Error	153	error C2733: second C linkage of overloaded function 'operator &' not allowed	c:\program files (x86)\microsoft visual studio 9.0\vc\include\ivec.h	722
Error	155	error C2733: second C linkage of overloaded function 'operator |' not allowed	c:\program files (x86)\microsoft visual studio 9.0\vc\include\ivec.h	722
Error	157	error C2733: second C linkage of overloaded function 'operator ^' not allowed	c:\program files (x86)\microsoft visual studio 9.0\vc\include\ivec.h	722
Error	159	error C2733: second C linkage of overloaded function 'andnot' not allowed	c:\program files (x86)\microsoft visual studio 9.0\vc\include\ivec.h	722
Error	161	error C2733: second C linkage of overloaded function 'operator &' not allowed	c:\program files (x86)\microsoft visual studio 9.0\vc\include\ivec.h	723
Error	163	error C2733: second C linkage of overloaded function 'operator |' not allowed	c:\program files (x86)\microsoft visual studio 9.0\vc\include\ivec.h	723
Error	165	error C2733: second C linkage of overloaded function 'operator ^' not allowed	c:\program files (x86)\microsoft visual studio 9.0\vc\include\ivec.h	723
Error	167	error C2733: second C linkage of overloaded function 'andnot' not allowed	c:\program files (x86)\microsoft visual studio 9.0\vc\include\ivec.h	723
Error	169	error C2733: second C linkage of overloaded function 'operator &' not allowed	c:\program files (x86)\microsoft visual studio 9.0\vc\include\ivec.h	724
Error	171	error C2733: second C linkage of overloaded function 'operator |' not allowed	c:\program files (x86)\microsoft visual studio 9.0\vc\include\ivec.h	724
Error	173	error C2733: second C linkage of overloaded function 'operator ^' not allowed	c:\program files (x86)\microsoft visual studio 9.0\vc\include\ivec.h	724
Error	175	error C2733: second C linkage of overloaded function 'andnot' not allowed	c:\program files (x86)\microsoft visual studio 9.0\vc\include\ivec.h	724
Error	177	error C2733: second C linkage of overloaded function 'operator &' not allowed	c:\program files (x86)\microsoft visual studio 9.0\vc\include\ivec.h	725
Error	179	error C2733: second C linkage of overloaded function 'operator |' not allowed	c:\program files (x86)\microsoft visual studio 9.0\vc\include\ivec.h	725
Error	181	error C2733: second C linkage of overloaded function 'operator ^' not allowed	c:\program files (x86)\microsoft visual studio 9.0\vc\include\ivec.h	725
Comment 13 Sam Lantinga 2014-08-17 20:48:12 UTC 
Can you try with the latest snapshot?
http://www.libsdl.org/tmp/SDL-2.0.zip

I'm building here with Visual Studio 2008 with no problems.  I created a file called test.cpp with these lines in it, and it compiled just fine:

#include <windows.h>
#include "SDL_atomic.h"

If you're still having problems, can you post a code snippet that when compiled alone, shows the problem?

Thanks!
Comment 14 Sam Lantinga 2015-05-26 13:29:37 UTC 
No response, I'm going to assume this is fixed.