Microsoft KB Archive/157618
Article ID: 157618
Article Last Modified on 5/12/2007
- Microsoft Visual J++ 1.0 Standard Edition
- Microsoft Visual C++ 4.0 Standard Edition
- Microsoft Visual C++ 4.1 Subscription
- Microsoft Visual C++ 4.0 Cross Development Edition for Macintosh
- Microsoft FORTRAN PowerStation 32
This article was previously published under Q157618
Installing Visual J++ (VJ++) on a machine that has Visual C++ 4.0 or 4.1 installed upgrades the Developer Studio and certain C/C++ compiler components. This is necessary to maintain compatibility between the compiler, the debugger, and the new version of the Developer Studio. It is recommended that you upgrade to Visual C++ 4.2, but not necessary.
If you continue using an earlier version of Visual C++, you should be aware that some of the C/C++ compiler components were upgraded to Visual C++ 4.2. The newer compiler introduces bug fixes and new features that may produce different compiler warnings or errors when building your existing projects.
For example, the Visual C++ 4.0 and 4.1 system header files are still using the bool keyword as a typedef name. The new components of the Visual C++ 4.2 compiler do not support the bool keyword and, as a result, issue the following Compiler Error:
A workaround for this problem is to rename the symbol at compile time with the flag "-Dbool=Bool." This can be added to the Build.Settings and should inhibit the error.
VJ++ 1.0 also upgrades similar components for earlier versions of the Fortran PowerStation and the Macintosh Cross-Development products.
This problem does not occur under Visual J++ 1.1 and Visual C++ 5.0
For the support information on Visual J++ and the SDK for Java, see the following page on the Microsoft Technical Support site:
Keywords: kbarttypeinf kbinfo kbsetup kbusage KB157618