Library: Utils

Code documentation: Utils.

This is a header-only library, containing various utility functions, such as:

• call_and_catch.h: protect function calls from exceptions, returning a status instead.
• char_cast.h: the function char_cast, which safely casts from pointers or references of unsigned char, char, or std::byte, to pointers or references of char. This is a subset of the reinterpet_cast operation that is safe with respect to C++ aliasing rules.
• concat.h: vararg function to concatenate many values to a string
• deprecate_header.h: macro deprecating a header
• is_same_object.h: predicate to determine if two references of possibly unrelated types refer to the same object.
• enumeration_utils.h: to_underlying (backported from C++23), to_enumeration
• error.h: definition of Error - base class for (C++) error handling
• forward_like.h: forward_like (backported from C++23)
• return_status.h: enum { ok, error }
• tuple_find.h: using type predicates to locate and count matching elements in a tuple