- static std::string state_names[7] =
- { "not scheduled", "schedulable", "scheduled", "runnable","running", "done", "failed" };
- return state_names[static_cast<int>(log2(static_cast<double>(state)))].data();
+ static constexpr std::array<const char*, 7> state_names{
+ {"not scheduled", "schedulable", "scheduled", "runnable", "running", "done", "failed"}};
+ return state_names.at(static_cast<int>(log2(static_cast<double>(state))));