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profile: C++-ify plot_info

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Use more C++ style memory management for plot_info: Use std::vector
for array data. Return the plot_info instead of filling an output
parameter. Add a constructor/destructor pair so that the caller
isn't bothered with memory management.

The bulk of the commit is replacement of pointers with references,
which is kind of gratuitous. But I started and then went on...

Default initializiation of gas_pressures made it necessary to convert
gas.c to c++, though with minimal changes to the code.

Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
This commit is contained in:
Berthold Stoeger 2024-05-03 18:51:03 +02:00 • committed by bstoeger
parent aaab5157d4
commit 48f7828d10
14 changed files with 635 additions and 670 deletions
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2
profile-widget/ruleritem.cpp
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@ -113,7 +113,7 @@ void RulerItem2::recalculate()
setLine(line);
QString text;
for (const std::string &s: compare_samples(dive, pInfo, source->idx, dest->idx, 1)) {
for (const std::string &s: compare_samples(dive, *pInfo, source->idx, dest->idx, 1)) {
if (!text.isEmpty())
text += '\n';
text += QString::fromStdString(s);