semkiv / cpp20-playground

A toy repository dedicated to exploring the C++20 new features as they're gradually getting wider support by the compilers.

C++20 Playground

A toy repository dedicated to exploring the C++20 new features as they're gradually getting wider support by the compilers. Note, as of now it does not seem to work out of the box with any compiler of the big three.

GCC

mkdir -p build
g++ -o build/cpp20-playground -std=c++20 -fmodules-ts main.cpp

With GCC 11.1.1 on Fedora 34 this fails complaining about missing compiled module file gcm.cache/./usr/include/c++/11/cstdlib.gcm.

Clang

mkdir -p build
clang++ -o build/cpp20-playground -std=c++20 main.cpp

With Clang 12.0.0 on Fedora 34 this fails because the headers "cannot be imported because they are not known to be header units".

MSVC

This one is difficult. Microsoft are being themselves and use different syntax for importing modules (import std.core;).