This bug/warning confused me for several minutes...doh. For the record - I didn't write this crap.

unref_local_variable.cpp

for( int j = ... )
{
    int i0; // WARNING: Unreferenced local variable

    int i1 = SomeComputation();
    
    for( int i = 0, i0 = i1; i < k; i = i1, i1 = i3 )
    {
        if( i1 == k )
        {
            if( !strstr( m_arr[j].strName, "loop" ) )
            {
                break;
            }
            else
            {
                i2 = 0, i3 = i0;
            }
        }
        /* blah blah nothhing to do with i0 */
    }
}