at namespace scope in A.cpp:

const metric::nautical_mile_base_unit::unit_type A::nautical_miles;

I don't have a .cpp. Everything is in the header. I tried doing the const thing after the class but it didn't work. Do I have to have a .cpp for it to work?

Ryan

//The following doesn't work.

class A

{

static const metric::nautical_mile_base_unit::unit_type nautical_miles;

static const metric::hour_base_unit::unit_type hours;

static const decltype(nautical_miles / hours) nautical_miles_per_hour;

}

const metric::nautical_mile_base_unit::unit_type A::nautical_miles;

const metric::hour_base_unit::unit_type A::hours;

const decltype(nautical_miles / hours) A::nautical_miles_per_hour;