fail to complie CPP

[Mrlaolu]

I can complie a C program.But when I complie a simple C++ program like

include <iostream>
int main(){
        std::cout << 1;
        return 0;
}

It show How can i solve it

[holzschu]

I think you need to compile C++ files with clang++, not clang.

[Mrlaolu]

clang++ also didn't work/(ㄒoㄒ)/~~

[holzschu]

I am unable to reproduce that one, even after un-installing and re-installing llvm-18. Given your other issue, I suspect something went with the downloading and installing of llvm-18, but I'm not sure what. Did you have any error messages when unpacking?

[Mrlaolu]

I remove llvm and reinstall llvm-18 ,and it works. Thank you very much

[holzschu]

Oh, I see. It was an issue if both llvm and llvm-18 are installed together. I'll keep it in mind if someone has the same issue.