# Extra Clang Tools 4 documentation

## clang-tidy - cppcoreguidelines-pro-bounds-array-to-pointer-decay

# cppcoreguidelines-pro-bounds-array-to-pointer-decay

This check flags all array to pointer decays.

Pointers should not be used as arrays. `span<T>` is a bounds-checked, safe alternative to using pointers to access arrays.

This rule is part of the “Bounds safety” profile of the C++ Core Guidelines, see https://github.com/isocpp/CppCoreGuidelines/blob/master/CppCoreGuidelines.md#Pro-bounds-decay.