core: add CRTP base class to unit types

The goal here is to add general addition and scalar multiplication
functions to the unit types.

Thereto, we need a CRTP
(https://en.wikipedia.org/wiki/Curiously_recurring_template_pattern)
base class.

However, this breaks compound initialization, so we have to use
named initializers:
	weight_t { 2000 } -> weight_t { .grams = 2000 }
The good thing is that this is exactly how these classes were
supposed to be used: make the unit explicit!

Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
This commit is contained in:
Berthold Stoeger 2024-09-01 21:48:31 +02:00 committed by bstoeger
parent 696ba61eef
commit 12ca172a9e
26 changed files with 127 additions and 138 deletions

View file

@ -551,7 +551,7 @@ void ProfileScene::plotDive(const struct dive *dIn, int dcIn, DivePlannerPointsM
// while all other items are up there on the constructor.
qDeleteAll(eventItems);
eventItems.clear();
struct gasmix lastgasmix = d->get_gasmix_at_time(*currentdc, duration_t{1});
struct gasmix lastgasmix = d->get_gasmix_at_time(*currentdc, duration_t{ .seconds = 1 });
for (auto [idx, event]: enumerated_range(currentdc->events)) {
// if print mode is selected only draw headings, SP change, gas events or bookmark event