general: simplify a few unit manipulations

Now that we have defined addition and subtraction on unit
classes, let's use them in a few examples.

Yes, some of these are a bit pointless, because they are
of the kind
        a.mbar - b.mbar => (a-b).mbar

However, these probably should be further simplified
by storing the result in a unit type.

This commit is mostly a proof-of-concept.

Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
This commit is contained in:
Berthold Stoeger 2024-09-02 20:42:05 +02:00 committed by bstoeger
parent 729cc16fc5
commit 110e64bc66
14 changed files with 59 additions and 68 deletions

View file

@ -353,7 +353,7 @@ void uemis::parse_divelog_binary(std::string_view base64, struct dive *dive)
u_sample++;
}
if (sample)
dive->dcs[0].duration.seconds = sample->time.seconds - 1;
dive->dcs[0].duration = sample->time - duration_t { .seconds = 1 };
/* get data from the footer */
add_extra_data(dc, "FW Version",