https://DevOpsCloud.io -- Cloud Monk Losang Jinpa, Ph.D., MCSE/MCT, GitOps DevOps Engineer

Introduced in CPP11, CPP Integral Constant represents a constant value as a type. It forms the basis for compile-time computation in template metaprogramming and type traits evaluation.

CPP Integral Constant powers type-based computations, static assertions, and compile-time logic. Its derived types like true_type and false_type enable compile-time decisions in generic code.

https://en.cppreference.com/w/cpp/types/integral_constant