How do I enable compiler switches for C++20?

To enable C++20 features in your compiler, you will need to use specific flags depending on the compiler you are using. Below are instructions for GCC and Clang, as well as MSVC.

GCC and Clang

For GCC and Clang, you can enable C++20 support by using the following compiler switch:

g++ -std=c++20 your_file.cpp clang++ -std=c++20 your_file.cpp

MSVC

For Microsoft Visual Studio, you can enable C++20 features by using the "/std:c++latest" switch:

cl /std:c++latest your_file.cpp

Example Code

Here is an example that uses a C++20 feature:

#include <iostream> #include <format> // C++20 feature int main() { std::cout << std::format("Hello, {}!", "C++20") << std::endl; return 0; }

C++20 compiler switches GCC Clang MSVC C++ features

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