Makes more of <chrono> constexpr.
Other papers in Relaxed constexpr
N3302Constexpr Library Additions: complex, v2Portland 2012N3470Constexpr Library Additions: containers, v2Portland 2012N3471Constexpr Library Additions: utilities, v3Portland 2012N3652Relaxing constraints on constexpr functions / constexpr member functions and implicit constBristol 2013N3669Fixing constexpr member functions without constBristol 2013N3789Constexpr Library Additions: functionalChicago 2013All 7 papers in Relaxed constexpr →