On Mon, Jun 6, 2016 at 11:15 PM, Herbert Valerio Riedel <hvriedel@gmail.com> wrote:

or even worse silent failures where the code behaves
subtly wrong or different than expected. Testsuites mitigate this to
some degree, but they too are an imperfect solution to this hard
problem.

It seems to me that if you have any thought at all for your library's clients the chances of this happening are pretty insignificant.