1.. title:: clang-tidy - cppcoreguidelines-pro-bounds-constant-array-index
2
3cppcoreguidelines-pro-bounds-constant-array-index
4=================================================
5
6This check flags all array subscript expressions on static arrays and
7``std::arrays`` that either do not have a constant integer expression index or
8are out of bounds (for ``std::array``). For out-of-bounds checking of static
9arrays, see the `-Warray-bounds` Clang diagnostic.
10
11This rule is part of the `Bounds safety (Bounds 2)
12<https://isocpp.github.io/CppCoreGuidelines/CppCoreGuidelines#Pro-bounds-arrayindex>`_
13profile from the C++ Core Guidelines.
14
15Optionally, this check can generate fixes using ``gsl::at`` for indexing.
16
17Options
18-------
19
20.. option:: GslHeader
21
22   The check can generate fixes after this option has been set to the name of
23   the include file that contains ``gsl::at()``, e.g. `"gsl/gsl.h"`.
24
25.. option:: IncludeStyle
26
27   A string specifying which include-style is used, `llvm` or `google`. Default
28   is `llvm`.
29