To take full advantage of all the lesson content, we recommend using the C++20 language standard if your compiler supports it. Some C++20 content is optionally available for those with C++20 compatible compilers. This website currently targets the C++17 standard, meaning our lessons and examples assume your compiler is C++17 capable.

You may still see the code names used in places (especially for upcoming version of the language standard, which won’t have a final name yet). For example, C++11 was called c++1x while it was being worked on. Consequently, in-progress language standards are given code names, which are then replaced by the actual names upon finalization of the standard. However, when a new language standard is being agreed upon, it’s not clear in what year the finalization will take place. If you wish to use a different language standard (and you probably will), you’ll have to configure your IDE/compiler to do so.Ĭode names for in-progress language standardsįinalized language standards are named after the years in which they are finalized (e.g.

This entry was posted in Error and tagged 'to_string' was not declared in this scope, codeblocks Error on Decemby Robins.With many different versions of C++ available (C++98, C++03, C++11, C++14, C++17, C++20, etc…) how does your compiler know which one to use? Generally, a compiler will pick a standard to default to (typically not the most recent language standard). to_String is contained in string, and string is contained in space STD, so your code should include header file and related space introduction, for example: #include Ĭout << 'a = ' << to_string(a) < Compiler

Codeblocks compiler not c++11