# Extra Clang Tools 21.1.6 documentation

## clang-tidy - cppcoreguidelines-interfaces-global-init

# cppcoreguidelines-interfaces-global-init

This check flags initializers of globals that access extern objects, and therefore can lead to order-of-initialization problems.

This check implements I.22 from the C++ Core Guidelines.

Note that currently this does not flag calls to non-constexpr functions, and therefore globals could still be accessed from functions themselves.