The C compiler in this 1972 UNIX is written in an interesting early dialect: 1972 Modern ---- ------ foo; in

The C compiler in this 1972 UNIX is written in an interesting early dialect: 1972 Modern ---- ------ foo; int foo; foo 1; int foo = 1; foo[]; int *foo; foo[] 1, 2, 3; int foo[] = { 1, 2, 3 }; char foo[][]; char **foo; No struct, union, or static. I'm wondering if locals not marked with auto are static. Also "extern foo" is used as a forward declaration to function or int foo. No preprocessor.