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divelog: turn owning-pointers into unique_ptr<>s

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Since everything is C++ now, we can use unique_ptr<>s. This makes
the code significantly shorter, because we can now use the default
move constructor and assignment operators.

This has a semantic change when std::move()-ing the divelog:
now not the contents of the tables are moved, but the pointers.
That is, the moved-from object now has no more tables and
must not be used anymore. This made it necessary to replace
std::move()s by std::swap()s. In that regard, the old code was
in principle broken: it used moved-from objects, which may work
but usually doesn't.

This commit adds a myriad of .get() function calls where the code
expects a C-style pointer. The plan is to remove virtually all of
them, when we move free-standing functions into the class it acts
on. Or, replace C-style pointers by references where we don't support
NULL.

Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
This commit is contained in:
Berthold Stoeger 2024-05-13 19:34:43 +02:00 • committed by bstoeger
parent 6e352d5281
commit d242198c99
22 changed files with 113 additions and 138 deletions
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2
core/libdivecomputer.cpp
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@ -885,7 +885,7 @@ static int dive_cb(const unsigned char *data, unsigned int size,
dive->dc.sample[1].temperature.mkelvin > dive->dc.sample[0].temperature.mkelvin)
dive->dc.sample[0].temperature.mkelvin = dive->dc.sample[1].temperature.mkelvin;
record_dive_to_table(dive, devdata->log->dives);
record_dive_to_table(dive, devdata->log->dives.get());
return true;
error_exit: