Use nullptr instead of 0 or NULL to initialize a null pointer. In some
cases, readability was enhanced by replacing 0 with more meaningful
values according to the type of the pointer being initialized.
Generation of unit test coverage reports used to be quite complicated
and required a lot of different settings, including a custom CMake
build type. This patch updates the coverage CMake module to only
require -DWITH_COVERAGE=ON to be set on a normal Debug build in order
to create a coverage target.
This patch also moves away from lcov in favor of gcovr, since lcov appears
to be broken in GCC 8. However, the routines for generating lcov reports
still exist, so provided lcov receives updates and there is sufficient
reason to switch back, it is easy to do so.
* Add SHA512 support to CryptoHash
* Add ChaCha20 support
* Add HMAC support
* Add new HmacBlockStream, used in KDBX 4
* Add support for ChaCha20 protected stream
