Fix MSVC warning C26495: ZwQuerySystemInformation, m_MetaDataObjectValue uninitialized#3843
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dzenanz merged 2 commits intoInsightSoftwareConsortium:masterfrom Jan 4, 2023
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Fixed VS2019 Code Analysis warnings, saying: > warning C26495: Variable 'itk::MetaDataObject::m_MetaDataObjectValue' is uninitialized. > Always initialize a member variable (type.6) Note that `MetaDataObject<MetaDataObjectType>` is a rather "expensive" class (typically heap-allocated, and having a virtual table), so the extra cost of the added initialization appears relatively low.
Fixed VS2019 Code Analysis warnings, saying: > warning C26495: Variable 'itk::WindowsMemoryUsageObserver::ZwQuerySystemInformation' is uninitialized. > Always initialize a member variable (type.6). Also added an in-class default member initializer to m_hNTLib, which was not yet initialized by the default-constructor of WindowsMemoryUsageObserver either. Note that `WindowsMemoryUsageObserver` is a rather "expensive" class (having a virtual table) and its default-constructor is already non-trivial, so the extra cost of the added initialization appears relatively low.
dzenanz
approved these changes
Jan 2, 2023
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Note that MSVC/Code Analysis does not always produce this warning about uninitialized member variables, when it should. As I reported at developercommunity.visualstudio.com: False negative (missing) /analyze warning C26495: Variable is uninitialized. Always initialize a member variable (type.6). For a code example, see https://godbolt.org/z/c4GhdPMc8 So even when all of those "C26495" warnings would be fixed, there might still be some more uninitialized member variables... So please upvote my MSVC bug report: https://developercommunity.visualstudio.com/t/False-negative-missing-analyze-warnin/10239447 |
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Fixed Visual Studio 2019 Code Analysis warnings from both
MetaDataObjectandWindowsMemoryUsageObserver, saying: