I am really astonished by the capabilities of static code analysis even though I am one of the developers of PVS-Studio analyzer myself. The tool surprised me the other day as it turned out to be smarter and more attentive than I am. You must be careful when working with static analysis tools. Code reported by the analyzer often looks fine and you are tempted to discard the warning as a false positive and move on. Even I, one of the PVS-Studio developers, fall into this trap and fail to spot bugs every now and then [viva64.com].
So, appreciate and use static code analyzers [wikipedia.org]! They will help save your time and nerve cells.