Different powers of different units about mp-units HOT 3 CLOSED

Hi @mpusz,

I made another check and it seems to not work if SI and imperial units are mixed. For SI only units it works. However it seems to convert the hours to seconds although it is not needed, because the output of:

auto length = si::length<si::metre>(10);                                                                       
auto time = si::time<si::hour>(2);
std::cout << length * length * time << '\n';

is

200 [36 × 10²] m²⋅s

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Cheers,
Grzegorz

from mp-units.

Hi, thanks for reporting.

Answering your first post, it is a well-known issue (see #55) and we are looking for the best solution to handle it. I have a couple of ideas but need some time to experiment with them and choose the best one.

Regarding the second one, seconds are never converted to hours in this example. The value stored in a quantity is 200 and I think it is what you expect here. Hours are not printed in the unit symbol because it is an unknown dimension with an unknown unit so the only thing that we can print is that its unit is a ratio of 3600 of a coherent unit of this dimension that in this case is m²⋅s.

from mp-units.

Compiles and works after:
834d1fa

from mp-units.