Mark Ridgewell

Minimal repro attached. Output: $ cppcheck --enable=warning --platform=native Matrix.cpp Checking Matrix.cpp ... Matrix.cpp:52:12: error: Returning object that will be invalid when returning. [returnDanglingLifetime] return { ^ Matrix.cpp:56:9: note: Passed to constructor of 'Matrix'. {0, 0, 0, T{1}}, ^ Matrix.cpp:52:12: note: Returning object that will be invalid when returning. return { ^ This is a false positive as all objects are passed to the constructor by value and are copied.