Hello Michel,
Theoretically, I think you should be able to avoid GC calls in a function by using nothrow:void func() nothrow { auto a = new char[1]; // error: may throw } Unfortunately, it doesn't seem to always work: void func(string a, string b) nothrow { auto c = a ~ b; // no error? } But that's probably just a bug somewhere.
IIRC there was a big long thread on if allocation failure was a fatal enough error to throw anyway with something that you aren't supposed to catch.
