C4 – C in 4 functions

Pretty damn impressive.

Though I must wonder: how complete is it? What does it and does it not support? It's at least complete enough to be self-hosting, but beyond that? The code doesn't use that much of C.

It's clear from the huge number of 'else if' statements that it doesn't support switch statements.

This is also a bit of a clue

    p = "char else enum if int return while "
    "open read close printf malloc memset memcmp exit main";