Th Rust macro system is difficult to use. So it doesn't get used a lot. But when it does it tends to be used well. The C preprocessor and C++ templates are not

Th Rust macro system is difficult to use. So it doesn't get used a lot. But when it does it tends to be used well. The C preprocessor and C++ templates are not difficult to use. But they're both difficult to use well. So they get used. A lot. Badly.