[gambit-list] Q: c-lambda efficiency in unsafe mode

On Sun, 26 Apr 2020 22:23:03 -0400 Marc Feeley feeley@iro.umontreal.ca wrote:

With a c-lambda the procedure itself and the conversion functions have to be called, and this adds considerable overhead on such a tiny piece of code. A ##c-code has no overhead.

those lovely surprizes; if only there was a reference in the manual ;-)

These days I ran into bitwise operation within needs too. I my case composing network packages efficiently.

Q: What's the effect of `(declare (not safe))` in this context? Will c-lambda's still generate the type check operations (which I *really* welcome during development) or should I consider using cond-expand (on which feature btw?) to use ##c-code for performance sake?

Best

/Jörg