blob: a5c4ccb0c4d7c3d7d3a4ec1e23e057c98f6490e1 [file] [log] [blame]
.. title:: clang-tidy - bugprone-posix-return
Checks if any calls to ``pthread_*`` or ``posix_*`` functions
(except ``posix_openpt``) expect negative return values. These functions return
either ``0`` on success or an ``errno`` on failure, which is positive only.
Example buggy usage looks like:
.. code-block:: c
if (posix_fadvise(...) < 0) {
This will never happen as the return value is always non-negative. A simple fix could be:
.. code-block:: c
if (posix_fadvise(...) > 0) {