IBM VisualAge C++ 4.0 Compiler and Linker
Description
The compiler tool from the VAC/C++ 4.0 package is not a standalone compiler tool any more, but an integrated part of the VAC/C++ 4.0 Workframe. It's operation is based on a database like structure, not generating intermediate object files etc. any more, thus speeding up compile time for small changes a lot. The "code database" also allows code browsing in a very comfortable way. Furthermore it fully supports the ANSI C++ standard.
So actually this would be undebatably the most powerful and advanced C/C++ development tool - if only IBM had finished it before abandoning it! Now it is only conceptionally great, but still contains so many bugs and instabilities that it can only be used with much care. Therefor in most cases the VAC/C++ 3.0 package with the latest fixpaks would be the preferred development tool.
Source and References
License
IBM Abandonware