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Do you actually have those C commands in your preprocesser? Sorry if the question is pretty basic but I’m learning C. It’s the one language you can’t avoid! (e.g. Erlang VM is written in C) Any info appreciated :)

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Those aren’t builtin macros, no. There is “assert.h”, which has an ‘assert’ function/macros/thing. The LENGTHOF macro I’m not as sure. There are ARRAY_LEN macros that I’ve seen — being sizeof(x)/sizeof(x[0]) — but that’s all compile time, and wouldn’t lend itself here too well.

For C, almost everything is written by you, especially when it comes to macros. There are some “basics” that you pick up here and there, which you can copy-paste more or less.

The C preprocessor is a beautiful thing, but can get a bit tedious. Sometimes a lot tedious. But shit is textual replacement powerful!

I thought Erlang VM was written in Erlang, maybe the first few versions where written in C.

The compiler and most of the standard library are written in Erlang, the VM and key components of the standard library are written in C.

The first versions were written in Prolog.

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