Symptoms
On a computer that is running the Microsoft .NET Framework 3.5 Service Pack 1 (SP1), the just-in-time (JIT) compiler and the Native Image Generator (Ngen.exe) that use the Mscorjit.dll file may generate incorrect code. Therefore, a 32-bit Managed C++ application may produce incorrect results. This problem occurs if the following conditions are true:
-
The struct or the class in the source code has less than four scalar varieties and no managed object references.
-
You use the Cpblk instruction or the Initblk instruction.
Note This problem does not occur in a 64-bit application.
Cause
This problem occurs because of a regression in the .NET Framework 3.5 SP1.
Resolution
Hotfix information
A supported hotfix is available from Microsoft. However, this hotfix is intended to correct only the problem that is described in this article. Apply this hotfix only to systems that are experiencing this specific problem. This hotfix might receive additional testing. Therefore, if you are not severely affected by this problem, we recommend that you wait for the next software update that contains this hotfix. To download this hotfix from the MSDN Code Gallery, visit the following Microsoft Web site:
http://code.msdn.microsoft.com/KB957542 Note The MSDN Code Gallery displays the languages for which the hotfix is available. If you do not see your language listed, it is because the Code Gallery resource page is not available for that language.Note If additional issues occur or if any troubleshooting is required, you might have to create a separate service request. The usual support costs will apply to additional support questions and issues that do not qualify for this specific hotfix. For a complete list of Microsoft Customer Service and Support telephone numbers or to create a separate service request, visit the following Microsoft Web site:
http://support.microsoft.com/contactus/?ws=supportNote If you have a 32-bit application that runs on a 64-bit platform, apply the hotfix for the 64-bit version to resolve this problem.
Prerequisites
You must have the .NET Framework 3.5 SP1 installed to apply this hotfix.
Restart requirement
You may have to restart the computer if any of the files that are updated are being used.
Hotfix replacement information
This hotfix does not replace any other hotfixes.
File information
The English version of this hotfix has the file attributes (or later file attributes) that are listed in the following table. The dates and times for these files are listed in Coordinated Universal Time (UTC). When you view the file information, it is converted to local time. To find the difference between UTC and local time, use the Time Zone tab in the Date and Time item in Control Panel.
Windows 2000, Windows XP, and Windows Server 2003, x86 versions
|
File name |
File version |
File size |
Date |
Time |
|---|---|---|---|---|
|
Mscordacwks.dll |
2.0.50727.3068 |
992,264 |
16-Sep-2008 |
13:13 |
|
Mscorjit.dll |
2.0.50727.3068 |
367,104 |
16-Sep-2008 |
13:13 |
|
Mscorlib.dll |
2.0.50727.3068 |
4,546,560 |
16-Sep-2008 |
13:13 |
|
Mscorwks.dll |
2.0.50727.3068 |
5,815,808 |
16-Sep-2008 |
13:13 |
Windows 2000, Windows XP, and Windows Server 2003, x64 versions
|
File name |
File version |
File size |
Date |
Time |
Platform |
|---|---|---|---|---|---|
|
Mscordacwks.dll |
2.0.50727.3068 |
992,264 |
16-Sep-2008 |
13:13 |
x86 |
|
Mscorjit.dll |
2.0.50727.3068 |
367,104 |
16-Sep-2008 |
13:13 |
x86 |
|
Mscorlib.dll |
2.0.50727.3068 |
4,546,560 |
16-Sep-2008 |
13:13 |
x86 |
|
Mscorwks.dll |
2.0.50727.3068 |
5,815,808 |
16-Sep-2008 |
13:13 |
x86 |
|
Mscordacwks.dll |
2.0.50727.3068 |
1,767,944 |
16-Sep-2008 |
10:33 |
x64 |
|
Mscorjit.dll |
2.0.50727.3068 |
1,580,032 |
16-Sep-2008 |
10:33 |
x64 |
|
Mscorlib.dll |
2.0.50727.3068 |
4,562,944 |
16-Sep-2008 |
10:33 |
x64 |
|
Mscorwks.dll |
2.0.50727.3068 |
10,079,744 |
16-Sep-2008 |
10:33 |
x64 |
Windows 2000, Windows XP, and Windows Server 2003, IA-64 versions
|
File name |
File version |
File size |
Date |
Time |
Platform |
|---|---|---|---|---|---|
|
Mscordacwks.dll |
2.0.50727.3068 |
992,264 |
16-Sep-2008 |
13:13 |
x86 |
|
Mscorjit.dll |
2.0.50727.3068 |
367,104 |
16-Sep-2008 |
13:13 |
x86 |
|
Mscorlib.dll |
2.0.50727.3068 |
4,546,560 |
16-Sep-2008 |
13:13 |
x86 |
|
Mscorwks.dll |
2.0.50727.3068 |
5,815,808 |
16-Sep-2008 |
13:13 |
x86 |
|
Mscordacwks.dll |
2.0.50727.3068 |
3,087,880 |
16-Sep-2008 |
10:44 |
IA-64 |
|
Mscorjit.dll |
2.0.50727.3068 |
2,560,512 |
16-Sep-2008 |
10:44 |
IA-64 |
|
Mscorlib.dll |
2.0.50727.3068 |
4,005,888 |
16-Sep-2008 |
10:44 |
IA-64 |
|
Mscorwks.dll |
2.0.50727.3068 |
20,153,856 |
16-Sep-2008 |
10:44 |
IA-64 |
Windows Vista Service Pack 1 (SP1) and Windows Server 2008, x86 versions
|
File name |
File version |
File size |
Date |
Time |
Platform |
|---|---|---|---|---|---|
|
Mscorlib.resources.dll |
2.0.50727.3053 |
352,256 |
15-Sep-2008 |
22:25 |
x86 |
|
Mscorlib.resources.dll |
2.0.50727.3053 |
303,104 |
15-Sep-2008 |
22:25 |
x86 |
|
Mscorlib.resources.dll |
2.0.50727.3053 |
299,008 |
15-Sep-2008 |
22:25 |
x86 |
|
Mscorlib.resources.dll |
2.0.50727.3053 |
315,392 |
27-Jul-2008 |
17:58 |
x86 |
|
Mscorlib.resources.dll |
2.0.50727.3053 |
425,984 |
15-Sep-2008 |
22:25 |
x86 |
|
Mscorlib.resources.dll |
2.0.50727.3053 |
307,200 |
27-Jul-2008 |
17:58 |
x86 |
|
Mscorlib.resources.dll |
2.0.50727.3053 |
299,008 |
15-Sep-2008 |
22:25 |
x86 |
|
Mscorlib.resources.dll |
2.0.50727.3053 |
311,296 |
27-Jul-2008 |
17:58 |
x86 |
|
Mscorlib.resources.dll |
2.0.50727.3053 |
331,776 |
15-Sep-2008 |
22:25 |
x86 |
|
Mscorlib.resources.dll |
2.0.50727.3053 |
315,392 |
15-Sep-2008 |
22:25 |
x86 |
|
Mscorlib.resources.dll |
2.0.50727.3053 |
307,200 |
27-Jul-2008 |
17:55 |
x86 |
|
Mscorlib.resources.dll |
2.0.50727.3053 |
348,160 |
27-Jul-2008 |
17:58 |
x86 |
|
Mscorlib.resources.dll |
2.0.50727.3053 |
319,488 |
27-Jul-2008 |
17:55 |
x86 |
|
Mscorlib.resources.dll |
2.0.50727.3053 |
290,816 |
15-Sep-2008 |
22:25 |
x86 |
|
Mscorlib.resources.dll |
2.0.50727.3053 |
303,104 |
15-Sep-2008 |
22:25 |
x86 |
|
Mscorlib.resources.dll |
2.0.50727.3053 |
311,296 |
15-Sep-2008 |
22:25 |
x86 |
|
Mscorlib.resources.dll |
2.0.50727.3053 |
303,104 |
27-Jul-2008 |
17:55 |
x86 |
|
Mscorlib.resources.dll |
2.0.50727.3053 |
307,200 |
15-Sep-2008 |
22:25 |
x86 |
|
Mscorlib.resources.dll |
2.0.50727.1434 |
397,312 |
11-Jan-2008 |
22:59 |
x86 |
|
Mscorlib.resources.dll |
2.0.50727.3053 |
299,008 |
15-Sep-2008 |
22:25 |
x86 |
|
Mscorlib.resources.dll |
2.0.50727.3053 |
299,008 |
15-Sep-2008 |
22:25 |
x86 |
|
Mscorlib.resources.dll |
2.0.50727.3053 |
278,528 |
27-Jul-2008 |
17:55 |
x86 |
|
Mscorlib.resources.dll |
2.0.50727.3053 |
278,528 |
27-Jul-2008 |
17:55 |
x86 |
|
Big5.nlp |
Not Applicable |
66,728 |
18-Dec-2007 |
21:03 |
Not Applicable |
|
Bopomofo.nlp |
Not Applicable |
82,172 |
18-Dec-2007 |
21:03 |
Not Applicable |
|
Ksc.nlp |
Not Applicable |
116,756 |
18-Dec-2007 |
21:04 |
Not Applicable |
|
Mscorlib.dll |
2.0.50727.3068 |
4,546,560 |
01-Oct-2008 |
22:27 |
x86 |
|
Normidna.nlp |
Not Applicable |
59,342 |
18-Dec-2007 |
21:05 |
Not Applicable |
|
Normnfc.nlp |
Not Applicable |
45,794 |
18-Dec-2007 |
21:05 |
Not Applicable |
|
Normnfd.nlp |
Not Applicable |
39,284 |
18-Dec-2007 |
21:05 |
Not Applicable |
|
Normnfkc.nlp |
Not Applicable |
66,384 |
18-Dec-2007 |
21:05 |
Not Applicable |
|
Normnfkd.nlp |
Not Applicable |
60,294 |
18-Dec-2007 |
21:05 |
Not Applicable |
|
Prc.nlp |
Not Applicable |
83,748 |
18-Dec-2007 |
21:05 |
Not Applicable |
|
Prcp.nlp |
Not Applicable |
83,748 |
18-Dec-2007 |
21:05 |
Not Applicable |
|
Sortkey.nlp |
Not Applicable |
262,148 |
18-Dec-2007 |
21:05 |
Not Applicable |
|
Sorttbls.nlp |
Not Applicable |
20,320 |
18-Dec-2007 |
21:05 |
Not Applicable |
|
Xjis.nlp |
Not Applicable |
28,288 |
18-Dec-2007 |
21:05 |
Not Applicable |
|
Mscordacwks.dll |
2.0.50727.3068 |
992,264 |
01-Oct-2008 |
22:27 |
x86 |
|
Mscorjit.dll |
2.0.50727.3068 |
367,104 |
24-Sep-2008 |
22:21 |
x86 |
|
Mscorwks.dll |
2.0.50727.3068 |
5,815,808 |
01-Oct-2008 |
22:27 |
x86 |
Windows Vista SP1 and Windows Server 2008, x64 versions
|
File name |
File version |
File size |
Date |
Time |
Platform |
|---|---|---|---|---|---|
|
Big5.nlp |
Not Applicable |
66,728 |
18-Dec-2007 |
21:01 |
Not Applicable |
|
Bopomofo.nlp |
Not Applicable |
82,172 |
18-Dec-2007 |
21:01 |
Not Applicable |
|
Ksc.nlp |
Not Applicable |
116,756 |
18-Dec-2007 |
21:02 |
Not Applicable |
|
Mscorlib.dll |
2.0.50727.3068 |
4,562,944 |
01-Oct-2008 |
22:25 |
x64 |
|
Normidna.nlp |
Not Applicable |
59,342 |
18-Dec-2007 |
21:03 |
Not Applicable |
|
Normnfc.nlp |
Not Applicable |
45,794 |
18-Dec-2007 |
21:03 |
Not Applicable |
|
Normnfd.nlp |
Not Applicable |
39,284 |
18-Dec-2007 |
21:03 |
Not Applicable |
|
Normnfkc.nlp |
Not Applicable |
66,384 |
18-Dec-2007 |
21:03 |
Not Applicable |
|
Normnfkd.nlp |
Not Applicable |
60,294 |
18-Dec-2007 |
21:03 |
Not Applicable |
|
Prc.nlp |
Not Applicable |
83,748 |
18-Dec-2007 |
21:03 |
Not Applicable |
|
Prcp.nlp |
Not Applicable |
83,748 |
18-Dec-2007 |
21:03 |
Not Applicable |
|
Sortkey.nlp |
Not Applicable |
262,148 |
18-Dec-2007 |
21:03 |
Not Applicable |
|
Sorttbls.nlp |
Not Applicable |
20,320 |
18-Dec-2007 |
21:03 |
Not Applicable |
|
Xjis.nlp |
Not Applicable |
28,288 |
18-Dec-2007 |
21:03 |
Not Applicable |
|
Mscordacwks.dll |
2.0.50727.3068 |
1,767,944 |
01-Oct-2008 |
22:25 |
x64 |
|
Mscorjit.dll |
2.0.50727.3068 |
1,580,032 |
24-Sep-2008 |
23:06 |
x64 |
|
Mscorwks.dll |
2.0.50727.3068 |
10,079,744 |
01-Oct-2008 |
22:25 |
x64 |
|
Mscorlib.resources.dll |
2.0.50727.3053 |
352,256 |
15-Sep-2008 |
22:26 |
x86 |
|
Mscorlib.resources.dll |
2.0.50727.3053 |
303,104 |
15-Sep-2008 |
22:25 |
x86 |
|
Mscorlib.resources.dll |
2.0.50727.3053 |
299,008 |
15-Sep-2008 |
22:26 |
x86 |
|
Mscorlib.resources.dll |
2.0.50727.3053 |
315,392 |
27-Jul-2008 |
18:02 |
x86 |
|
Mscorlib.resources.dll |
2.0.50727.3053 |
425,984 |
15-Sep-2008 |
22:26 |
x86 |
|
Mscorlib.resources.dll |
2.0.50727.3053 |
307,200 |
27-Jul-2008 |
18:02 |
x86 |
|
Mscorlib.resources.dll |
2.0.50727.3053 |
299,008 |
15-Sep-2008 |
22:26 |
x86 |
|
Mscorlib.resources.dll |
2.0.50727.3053 |
311,296 |
27-Jul-2008 |
18:02 |
x86 |
|
Mscorlib.resources.dll |
2.0.50727.3053 |
331,776 |
15-Sep-2008 |
22:26 |
x86 |
|
Mscorlib.resources.dll |
2.0.50727.3053 |
315,392 |
15-Sep-2008 |
22:25 |
x86 |
|
Mscorlib.resources.dll |
2.0.50727.3053 |
307,200 |
27-Jul-2008 |
17:56 |
x86 |
|
Mscorlib.resources.dll |
2.0.50727.3053 |
348,160 |
27-Jul-2008 |
18:02 |
x86 |
|
Mscorlib.resources.dll |
2.0.50727.3053 |
319,488 |
27-Jul-2008 |
17:56 |
x86 |
|
Mscorlib.resources.dll |
2.0.50727.3053 |
290,816 |
15-Sep-2008 |
22:26 |
x86 |
|
Mscorlib.resources.dll |
2.0.50727.3053 |
303,104 |
15-Sep-2008 |
22:25 |
x86 |
|
Mscorlib.resources.dll |
2.0.50727.3053 |
311,296 |
15-Sep-2008 |
22:25 |
x86 |
|
Mscorlib.resources.dll |
2.0.50727.3053 |
303,104 |
27-Jul-2008 |
17:56 |
x86 |
|
Mscorlib.resources.dll |
2.0.50727.3053 |
307,200 |
15-Sep-2008 |
22:25 |
x86 |
|
Mscorlib.resources.dll |
2.0.50727.1434 |
397,312 |
11-Jan-2008 |
22:59 |
x86 |
|
Mscorlib.resources.dll |
2.0.50727.3053 |
299,008 |
15-Sep-2008 |
22:25 |
x86 |
|
Mscorlib.resources.dll |
2.0.50727.3053 |
299,008 |
15-Sep-2008 |
22:25 |
x86 |
|
Mscorlib.resources.dll |
2.0.50727.3053 |
278,528 |
27-Jul-2008 |
17:56 |
x86 |
|
Mscorlib.resources.dll |
2.0.50727.3053 |
278,528 |
27-Jul-2008 |
17:56 |
x86 |
|
Big5.nlp |
Not Applicable |
66,728 |
18-Dec-2007 |
21:03 |
Not Applicable |
|
Bopomofo.nlp |
Not Applicable |
82,172 |
18-Dec-2007 |
21:03 |
Not Applicable |
|
Ksc.nlp |
Not Applicable |
116,756 |
18-Dec-2007 |
21:04 |
Not Applicable |
|
Mscorlib.dll |
2.0.50727.3068 |
4,546,560 |
01-Oct-2008 |
22:27 |
x86 |
|
Normidna.nlp |
Not Applicable |
59,342 |
18-Dec-2007 |
21:05 |
Not Applicable |
|
Normnfc.nlp |
Not Applicable |
45,794 |
18-Dec-2007 |
21:05 |
Not Applicable |
|
Normnfd.nlp |
Not Applicable |
39,284 |
18-Dec-2007 |
21:05 |
Not Applicable |
|
Normnfkc.nlp |
Not Applicable |
66,384 |
18-Dec-2007 |
21:05 |
Not Applicable |
|
Normnfkd.nlp |
Not Applicable |
60,294 |
18-Dec-2007 |
21:05 |
Not Applicable |
|
Prc.nlp |
Not Applicable |
83,748 |
18-Dec-2007 |
21:05 |
Not Applicable |
|
Prcp.nlp |
Not Applicable |
83,748 |
18-Dec-2007 |
21:05 |
Not Applicable |
|
Sortkey.nlp |
Not Applicable |
262,148 |
18-Dec-2007 |
21:05 |
Not Applicable |
|
Sorttbls.nlp |
Not Applicable |
20,320 |
18-Dec-2007 |
21:05 |
Not Applicable |
|
Xjis.nlp |
Not Applicable |
28,288 |
18-Dec-2007 |
21:05 |
Not Applicable |
|
Mscordacwks.dll |
2.0.50727.3068 |
992,264 |
01-Oct-2008 |
22:27 |
x86 |
|
Mscorjit.dll |
2.0.50727.3068 |
367,104 |
24-Sep-2008 |
22:21 |
x86 |
|
Mscorwks.dll |
2.0.50727.3068 |
5,815,808 |
01-Oct-2008 |
22:27 |
x86 |
Windows Vista SP1 and Windows Server 2008, IA-64 versions
|
File name |
File version |
File size |
Date |
Time |
Platform |
|---|---|---|---|---|---|
|
Big5.nlp |
Not Applicable |
66,728 |
18-Dec-2007 |
21:06 |
Not Applicable |
|
Bopomofo.nlp |
Not Applicable |
82,172 |
18-Dec-2007 |
21:06 |
Not Applicable |
|
Ksc.nlp |
Not Applicable |
116,756 |
18-Dec-2007 |
21:06 |
Not Applicable |
|
Mscorlib.dll |
2.0.50727.3068 |
4,005,888 |
01-Oct-2008 |
22:26 |
IA-64 |
|
Normidna.nlp |
Not Applicable |
59,342 |
18-Dec-2007 |
21:08 |
Not Applicable |
|
Normnfc.nlp |
Not Applicable |
45,794 |
18-Dec-2007 |
21:08 |
Not Applicable |
|
Normnfd.nlp |
Not Applicable |
39,284 |
18-Dec-2007 |
21:08 |
Not Applicable |
|
Normnfkc.nlp |
Not Applicable |
66,384 |
18-Dec-2007 |
21:08 |
Not Applicable |
|
Normnfkd.nlp |
Not Applicable |
60,294 |
18-Dec-2007 |
21:08 |
Not Applicable |
|
Prc.nlp |
Not Applicable |
83,748 |
18-Dec-2007 |
21:08 |
Not Applicable |
|
Prcp.nlp |
Not Applicable |
83,748 |
18-Dec-2007 |
21:08 |
Not Applicable |
|
Sortkey.nlp |
Not Applicable |
262,148 |
18-Dec-2007 |
21:08 |
Not Applicable |
|
Sorttbls.nlp |
Not Applicable |
20,320 |
18-Dec-2007 |
21:08 |
Not Applicable |
|
Xjis.nlp |
Not Applicable |
28,288 |
18-Dec-2007 |
21:08 |
Not Applicable |
|
Mscordacwks.dll |
2.0.50727.3068 |
3,087,880 |
01-Oct-2008 |
22:26 |
IA-64 |
|
Mscorjit.dll |
2.0.50727.3068 |
2,560,512 |
24-Sep-2008 |
23:14 |
IA-64 |
|
Mscorwks.dll |
2.0.50727.3068 |
20,153,856 |
01-Oct-2008 |
22:26 |
IA-64 |
|
Mscorlib.resources.dll |
2.0.50727.3053 |
315,392 |
27-Jul-2008 |
17:58 |
x86 |
|
Mscorlib.resources.dll |
2.0.50727.3053 |
311,296 |
27-Jul-2008 |
17:58 |
x86 |
|
Mscorlib.resources.dll |
2.0.50727.3053 |
348,160 |
27-Jul-2008 |
17:58 |
x86 |
|
Mscorlib.resources.dll |
2.0.50727.3053 |
319,488 |
27-Jul-2008 |
17:58 |
x86 |
|
Mscorlib.resources.dll |
2.0.50727.3053 |
278,528 |
27-Jul-2008 |
17:58 |
x86 |
|
Mscorlib.resources.dll |
2.0.50727.3053 |
278,528 |
27-Jul-2008 |
17:59 |
x86 |
|
Big5.nlp |
Not Applicable |
66,728 |
18-Dec-2007 |
21:03 |
Not Applicable |
|
Bopomofo.nlp |
Not Applicable |
82,172 |
18-Dec-2007 |
21:03 |
Not Applicable |
|
Ksc.nlp |
Not Applicable |
116,756 |
18-Dec-2007 |
21:04 |
Not Applicable |
|
Mscorlib.dll |
2.0.50727.3068 |
4,546,560 |
01-Oct-2008 |
22:27 |
x86 |
|
Normidna.nlp |
Not Applicable |
59,342 |
18-Dec-2007 |
21:05 |
Not Applicable |
|
Normnfc.nlp |
Not Applicable |
45,794 |
18-Dec-2007 |
21:05 |
Not Applicable |
|
Normnfd.nlp |
Not Applicable |
39,284 |
18-Dec-2007 |
21:05 |
Not Applicable |
|
Normnfkc.nlp |
Not Applicable |
66,384 |
18-Dec-2007 |
21:05 |
Not Applicable |
|
Normnfkd.nlp |
Not Applicable |
60,294 |
18-Dec-2007 |
21:05 |
Not Applicable |
|
Prc.nlp |
Not Applicable |
83,748 |
18-Dec-2007 |
21:05 |
Not Applicable |
|
Prcp.nlp |
Not Applicable |
83,748 |
18-Dec-2007 |
21:05 |
Not Applicable |
|
Sortkey.nlp |
Not Applicable |
262,148 |
18-Dec-2007 |
21:05 |
Not Applicable |
|
Sorttbls.nlp |
Not Applicable |
20,320 |
18-Dec-2007 |
21:05 |
Not Applicable |
|
Xjis.nlp |
Not Applicable |
28,288 |
18-Dec-2007 |
21:05 |
Not Applicable |
|
Mscordacwks.dll |
2.0.50727.3068 |
992,264 |
01-Oct-2008 |
22:27 |
x86 |
|
Mscorjit.dll |
2.0.50727.3068 |
367,104 |
24-Sep-2008 |
22:21 |
x86 |
|
Mscorwks.dll |
2.0.50727.3068 |
5,815,808 |
01-Oct-2008 |
22:27 |
x86 |
Workaround
To work around this problem, use one of the following methods.
Method 1
If the application code resembles the sample code in the "More Information" section, locate the following line of code.
#define GETVECTOR3D(vec3d) (*reinterpret_cast<AcGeVector3d*>(&((vec3d).m_x))
Change this line of code as follows.
#define GETVECTOR3D(vec3d) (*reinterpret_cast<AcGeVector3d*>(&((vec3d)))
Method 2
Deploy an .ini file. To do this, create a file that contains the following code.
[.NET Framework Debugging Control]AllowOptimize=0
Name the .ini file the same as the problematic module, but use the .ini extension instead of the .dll extension. For example, for the sample code in the "More Information" section, name the .ini file the Bug.ini file. Put the Bug.ini file in the same directory as the Bug.dll file.Note The drawback of this method is the potential performance effect for no optimizations. If you use the Native Image Generator (Ngen.exe) to precompile the module, this method is not applicable.
Method 3
Selectively apply the NoOptimization option of the MethodImplOptions enumeration to the problematic methods by using the MethodImplAttribute class.Note This method disables the optimizations for the JIT compiler and for the Native Image Generator (Ngen.exe) on a per-method level. How much the performance is affected varies, depending on the method.
Status
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.
More Information
Steps to reproduce the problem
-
Create a C++ application that is based on the .NET Framework 3.5 SP1.
-
Add a .cpp file to the project, name this file the Bug.cpp file, and then paste the following code in the Bug.cpp file.
#using <mscorlib.dll>#include <stdlib.h>class AcGeVector3d{double x, y, z;public:__forceinline AcGeVector3d(const AcGeVector3d& src): x(src.x),y(src.y),z(src.z){}__forceinline AcGeVector3d(double xx, double yy, double zz) : x(xx),y(yy),z(zz){}__forceinline AcGeVector3d operator / (double val) const{return AcGeVector3d (x/val, y/val, z/val);}};#define GETVECTOR3D(vec3d) (*reinterpret_cast<AcGeVector3d*>(&((vec3d).m_x)))namespace Geometry{[System::Runtime::InteropServices::StructLayout(System::Runtime::InteropServices::LayoutKind::Sequential)]public value class Vector3d{internal:double m_x, m_y, m_z;Vector3d(const AcGeVector3d* obj){GETVECTOR3D(*this) = *obj;}public:Vector3d(double x, double y, double z):m_x(x),m_y(y), m_z(z) {}Vector3d DivideBy(double value){return Vector3d(&GETVECTOR3D(*this).operator /(value));}virtual System::String^ ToString() override{return System::String::Format("{0}, {1}, {2}", m_x, m_y, m_z);}};}
-
To compile the Bug.cpp file, run the following command:
cl /clr /GL /O2 bug.cpp /link /dll /out:bug.dll
-
Create a new Microsoft Visual C# project to be used as the client project.
-
Name the code file the Test.cs file, and then paste the following code in the Test.cs file.
using Geometry;namespace Test{class Tester{static void Main(){Vector3d v = new Vector3d(200, 200, 0);v = v.DivideBy(150);System.Console.WriteLine("{0}", v);}}}
-
To compile the Test.cs file, run the following command:
csc /r:bug.dll test.cs
-
To embed the manifest into the Test.exe file, run the following command:
mt.exe -nologo -manifest bug.dll.manifest -outputresource:test.exe;1
-
Run the Test.exe file.
Notice that the actual result is as follows:
1.33333333333333, 1.333333333333, 0 However, the expected result is as follows:
1.33333333333333, 0, 0
References
For more information about software update terminology, click the following article number to view the article in the Microsoft Knowledge Base:
824684 Description of the standard terminology that is used to describe Microsoft software updates
