Promises for const find() on std::map

[Alan Woodland]

Hi,

Does the C++ standard have anything to say about async safety? I.e. does
it define what is/isn't safe to call in a signal handler? I'm slightly
hazy about what standard defines what in the context of signals....

Really what I want to know: is it reasonable to assume that the const
version of find() on std::map is async safe? (I'm slightly worried this
might be OT for C++ though if the current standards overlook/delegate
the definition of async safe)

Thanks,
Alan