I am experimenting with modules in clang, and would like to include the standard lib as modules instead of as includes.
Currently I do this
#include <iostream>
#include <string>
It seems that you in msvc should be able to import standard libs with for example
import std.core;
When using clang however this does not seem to be implemented, or implemented in another way.
My question is: Is it possible to import stl-includes like microsoft suggest, or is it possible to map standard lib includes to modules somhow.
Note: The reason I cannot use #include <...> or #import <...> is because of other errors that might get its own question. So I think that getting import std.core or similar is the way to go now if it is possible.
ModernesCpp also mentions std.core.
In Ubuntu-24.04+clang++-18
// main.cpp
import std;
int main()
{
std::print("Hello world!\n");
return 0;
}
For above codes
>>sudo apt install clang-18 libc++-18-dev
>>clang++-18 -std=c++23 -stdlib=libc++ -Wno-reserved-module-identifier --precompile -o std.pcm /usr/lib/llvm-18/share/libc++/v1/std.cppm
>>clang++-18 -std=c++23 -stdlib=libc++ -fmodule-file=std=std.pcm std.pcm main.cpp -o main
>>./main
Hello world!