C++ Core Guidelines: Rules for Strings
The C++ core guidelines use the term string as a sequence of characters. Consequently, the guidelines are about C-strings, C++-strings, the C++17 std::string_view‘s, and std::byte‘s.
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The C++ core guidelines use the term string as a sequence of characters. Consequently, the guidelines are about C-strings, C++-strings, the C++17 std::string_view‘s, and std::byte‘s.
When you access an element outside a container of the STL, the result is not so promising. Your effect may be an error or undefined behavior. Undefined behavior means all bets are open.
Modern C++ has eight associative containers, but your special friends should be std::map and std::unordered_map. Why? Let me explain it in this post.
In 99 % of your use cases for a sequential container, you are outstanding with a std::array or a std::vector. What? If you don’t believe me, read this post.
The rules to the C++ standard library are mainly about containers, strings, and iostreams.
My last post gave you an introduction to modules in C++20. This post shows how to use existing modules.
Modules are one of the five prominent features of C++20. Modules will overcome the restrictions of header files. They promise a lot. For example, the separation of header and source files becomes as obsolete as the preprocessor. Ultimately, we will also have faster build times and an easier way to build packages.
Today, I complet the rules of the C++ core guidelines to source files. They are about header files and namespaces.
I have prepared the pdf bundle. To get it is quite simple.
The organization of source files is a topic quite seldom addressed in C++. With C++20, we will get modules, but until then, we should distinguish between our code’s implementation and interface.