This is the mail archive of the libstdc++@gcc.gnu.org mailing list for the libstdc++ project.
Index Nav: | [Date Index] [Subject Index] [Author Index] [Thread Index] | |
---|---|---|
Message Nav: | [Date Prev] [Date Next] | [Thread Prev] [Thread Next] |
Other format: | [Raw text] |
On Fri, May 24, 2013 at 03:29:43PM +0100, Jonathan Wakely wrote: > >> in the latter). And there is no conversion in between the two. > >> > >> Perhaps I'd have to do something like: > >> return time_point(system_clock::now().time_since_epoch()); > >> ? Can try that. > > > > Ah, but the duration can be different depending on macros. > > You can convert between durations: with duration_cast: > > return time_point(duration_cast<duration>(system_clock::now().time_since_epoch())); Actually return time_point(system_clock::now().time_since_epoch()); seems to work too, there is a ctor for that: template<typename _Rep2, typename _Period2, typename = typename enable_if<treat_as_floating_point<rep>::value || (ratio_divide<_Period2, period>::den == 1 && !treat_as_floating_point<_Rep2>::value)>::type> constexpr duration(const duration<_Rep2, _Period2>& __d) : __r(duration_cast<duration>(__d).count()) { } I've tried a configuration where system_clock::now() used gettimeofday and system_clock duration was in microseconds and steady_clock was the non-steady one, but with nanoseconds resolution, and system_clock::now() then contains call gettimeofday movq (%rsp), %rax imulq $1000000, %rax, %rax addq 8(%rsp), %rax (1000000 * tv.tv_sec + tv.tv_usec) and steady_clock::now() call _ZNSt6chrono12system_clock3nowEv imulq $1000, %rax, %rax so it converts correctly. So, adjusted patches attached, ok for trunk/4.8 if they pass bootstrap/regtest? Guess Rainer will need to on top of that adjust Solaris baseline_symbols.txt files. Jakub
Attachment:
49
Description: Text document
Attachment:
48
Description: Text document
Index Nav: | [Date Index] [Subject Index] [Author Index] [Thread Index] | |
---|---|---|
Message Nav: | [Date Prev] [Date Next] | [Thread Prev] [Thread Next] |