Anthony Cook

Hi Gary. Problem solved :) - thank you for confirming that when done correctly it does work. This prompted me to go and look at the compiler command. I'm using CMake to build the VS 2022 project. To set the DEBUGGING_FUNCTIONS define I was using the CMake generator command: add_compile_definitions(DEBUGGING_FUNCTION 0) This caused the compiler command line switches - /D "DEBUGGING_FUNCTION" /D "0" - to be generated - so I think you can see whats going to happen! The CMake fix is to add quotes to...

(I'm not authorized to create a bug ticket so I'll report the problem here (for now)) Title: Building CLIPS 6.40 with "#define DEBUGGING_FUNCTIONS 0 " set in "setup.h", causes a runtime error when calling the API CreateEnvironment The crash is in the file dffctdef.c:217. Reason: Access violation writing to location 0x0000000000000008 This is CLIPS built into a 64bit executable with Visual Studio 2022. It crashes on the very first CLIPS API call to CreateEnvironment My guess is CLIPS hasn't been tested...