.. title:: clang-tidy - cppcoreguidelines-pro-bounds-constant-array-index cppcoreguidelines-pro-bounds-constant-array-index ================================================= This check flags all array subscript expressions on static arrays and ``std::arrays`` that either do not have a constant integer expression index or are out of bounds (for ``std::array``). For out-of-bounds checking of static arrays, see the clang-diagnostic-array-bounds check. The check can generate fixes after the option :option:`GslHeader` has been set to the name of the include file that contains ``gsl::at()``, e.g. `"gsl/gsl.h"`. 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-arrayindex.