clean: fix some issues found by the code analysis of Visual Studio

xiaoyifang / goldendict-ng

The Next Generation GoldenDict

https://xiaoyifang.github.io/goldendict-ng/

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Closed shenlebantongying closed 1 week ago

shenlebantongying commented 1 week ago

It appears that the Visual Studio's Analyze → Run code analyze button is just rebuilding the project, then collect warnings.

Edit: Actually, I don't know what's the rule it follows. It seems CMake (?) project cannot configure it as written in VS's doc. The panel is blank for me. https://learn.microsoft.com/en-us/cpp/code-quality/quick-start-code-analysis-for-c-cpp?view=msvc-170

This fixes all the default warnings.

Mostly uninitialized variables. Initialize everything religiously.

sonarcloud[bot] commented 1 week ago