On 22 May 2013 12:15, Jakub Jelinek wrote: > > If now() can be perhaps with worse precision emulated in configurations not > built against glibc 2.17, perhaps best solution would be to > add now()@@GLIBCXX_3.4.18 into 4.8.1 (and change all 3.4.18 symbols to > 3.4.19) and have now()@GLIBCXX_3.4.17 (note, just one @) as compatibility > alias to that.
The problem for steady_clock::now() isn't one of precision, it's that it isn't steady if we don't use the monotonic clock. We could define a non-steady steady_clock (with the same precision as system_clock) but is that helpful to users? If that's what we want then yes, we can do the symbol versioning you suggest.