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Cleanup: consistently use qPrintable()

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Replace constructs of the kind
  s.toUtf8().data(),
  s.toUtf8().constData(),
  s.toLocal8Bit().data(),
  s.toLocal8Bit.constData() or
  qUtf8Printable(s)
by
  qPrintable(s).

This is concise, consistent and - in principle - more performant than
the .data() versions.

Sadly, owing to a suboptimal implementation, qPrintable(s) currently
is a pessimization compared to s.toUtf8().data(). A fix is scheduled for
new Qt versions: https://codereview.qt-project.org/#/c/221331/

Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
This commit is contained in:
Berthold Stoeger 2018-02-25 13:51:41 +01:00 • committed by Lubomir I. Ivanov
parent 4e44fe7598
commit b72cc1f317
33 changed files with 166 additions and 162 deletions
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2
core/qt-ble.cpp
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@ -334,7 +334,7 @@ dc_status_t qt_ble_open(dc_custom_io_t *io, dc_context_t *context, const char *d
return DC_STATUS_IO;
default:
qDebug() << "failed to connect to the controller " << devaddr << "with error" << controller->errorString();
report_error("Failed to connect to %s: '%s'", devaddr, controller->errorString().toUtf8().data());
report_error("Failed to connect to %s: '%s'", devaddr, qPrintable(controller->errorString()));
delete controller;
return DC_STATUS_IO;
}