search for: thiscontext

...and I don't know the POTENTIAL PROBLEMS that might be introduced. It involves setting up a context and forcing R_GlobalContext's nextcontext to 0, as in the following (by the way, this same approach doesn't work in the example above, which is why I set up a context): begincontext(&thiscontext, 0, CTXT_GENERIC, R_NilValue, R_NilValue, R_NilValue); R_GlobalContext->nextcontext = 0; if (!SETJMP(thiscontext.cjmpbuf)) R_CurrentExpr = eval(R_CurrentExpr , rho); endcontext(&thiscontext); This code solves my problem, however, in certain cases my calling C++ client application cannot ca...

Hello, When using R_tryEval (from JRI in my case), is there a way to setup error recovery strategy and more generally calling handlers. From my reading of context.c, R_tryEval calls R_ToplevelExec which creates a context like this: begincontext(&thiscontext, CTXT_TOPLEVEL, R_NilValue, R_GlobalEnv, R_BaseEnv, R_NilValue, R_NilValue); so I guess what I am trying to do is add "cend" and/or "handlerstack" to this context. Is this possible ? Are there examples of packages doing this ? Romain -- Romain Francois Independent...

I'm trying to clarify contexts and their uses. I do have a good general understanding of them. My question is about "undeclared" and "non-existant" contexts. If I have a block somewhere (in sip.conf, for example), and it has no "context=thiscontext" field, does it just automatically use the "default" context? Or is this settable? (I see there is an entry for context in the [general] block. I'm guessing this can be used to set a global context for that file. But if this is omitted, what context does the file get? Is "de...