Tidy up in OCI driver code

Use nullptr instead of 0 for null pointers.
Compare OCIHandleAlloc() return values to OCI_SUCCESS rather than 0.
Initialize instance variables in the class where possible, rather than
in the constructor. Conform to coding style o long lines and braces.
Assert pointers are null before allocating and overwriting them, so we
might have a chance of catching leaks.

Change-Id: Ia885ec18f46de5219a51fb6f9f23f474b3046585
Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org>
Reviewed-by: Andy Shaw <andy.shaw@qt.io>

0 files changed, 0 insertions, 0 deletions