Does angelscript support longjmp inside the registed function? In other words, I register function called "void fireMe()", inside fireMe function, I used setjmp and longjmp to jump in and out of the function, will script engine support this? Cheers

As long as you eventually call return from fireMe() I don't see any reason why you wouldn't be able to use setjmp/longjmp.

If you do not return from fireMe() you are likely going to have memory leaks.