False positive: returnDanglingLifetime

[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.

[CHR]

Thanks for reporting, ticket is here: https://trac.cppcheck.net/ticket/11666