Class/struct members not initialized, makes initialization different between Windows and OSX/Linux

[fabien]

Also g-mon found out this problem in:

VS2019 and warnings

I’m seeing a lot of warnings with VS2019 and JUCE. Is this expected at this point? Examples: Severity Code Description Project File Line Suppression State Warning C26451 Arithmetic overflow: Using operator '+' on a 4 byte value and then casting the result to a 8 byte value. Cast the value to the wider type before calling operator '+' to avoid overflow (io.2). AccessDemoPlugin_SharedCode c:\dev.github\juce\modules\juce_core\text\juce_charpointer_utf16.h 242 Warning C26451 Arithmetic overflow: …

I think this is mainly because windows does not allocate zero filled memory buffers, there could be garbage in allocated memory causing trouble in Windows when it would work in other systems.
There are also intellisense related warnings, but these could be adressed as they really happen in the code.