I think we can be a little bit more charitable towards C++. Modern compilers will let you know if you try to do something as obviously incorrect as returning a pointer to a stack variable.

    $ cat > foo.cpp <<EOF
    > int *dangling(void)
    > {
    >     int i = 1234;
    >     return &i;
    > }
    > EOF
    
    $ clang++ -Werror -c foo.cpp
    foo.cpp:4:13: error: address of stack memory associated with local variable 'i'
          returned [-Werror,-Wreturn-stack-address]
        return &i;
                ^
    1 error generated.