PRB: Win32s Version of MSVCRT20.DLL and the iostream Classes (125497)
The information in this article applies to:
- The C Run-Time (CRT), when used with:
- Microsoft Visual C++, 32-bit Editions 2.0
This article was previously published under Q125497 SYMPTOMS
Under Win32s, when you run multiple Win32-based applications that use
the iostream classes provided by MSVCRT20.DLL, you will get unexpected
errors or unexpected behavior.
In addition, if the application references the global iostream objects
cin, cout, cerr, or clog, it will fail at load time with Win32s errors.
Win32s will display an error message similar to this one:
The procedure entry point "?cerr@@3Vostream_withassign@@E"
could not be located in Dynamic Link Library "MSVCRT20.DLL".
where "?cerr@@3Vostream_withassign@@E" is the decorated name for the cerr
object. The error message may contain one of these decorated names for the
other iostream objects instead:
"?cin@@3Vistream_withassign@@E"
"?cout@@3Vostream_withassign@@E"
"?clog@@3Vostream_withassign@@E"
CAUSE
The Win32s version of the run-time library DLL (MSVCRT20.DLL) does not
support multiple applications using the iostream classes at the same time.
It also does not provide the global iostream objects cin, cout, cerr, or
clog. A Win32-based application that references them can be built without
errors, but it will fail at load time on Win32s, as described above.
RESOLUTION
You can continue to use MSVCRT20.DLL as long as there is only one Win32s
application using the iostream classes in the DLL at one time. If your
application references the global iostream objects, then you must remove
those references when you are building the application to run on Win32s.
MORE INFORMATION
The Win32s version of MSVCRT20.DLL is located in the WIN32S\REDIST
directory of the Visual C++ version 2.0 CD-ROM.
REFERENCES
"C Run-time Support" section in Chapter 3 of Win32 Programmer's Reference,
Win32s manual.
| Modification Type: | Major | Last Reviewed: | 10/24/2003 |
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| Keywords: | kbCRT kbprb KB125497 |
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