# Extra Clang Tools 4 documentation

## clang-tidy - misc-non-copyable-objects

# misc-non-copyable-objects

cert-fio38-c redirects here as an alias for this check.

The check flags dereferences and non-pointer declarations of objects that are not meant to be passed by value, such as C FILE objects or POSIX `pthread_mutex_t` objects.

This check corresponds to CERT C++ Coding Standard rule FIO38-C. Do not copy a FILE object.