Good luck writing a macro in C to express language functionality for which you d... | Hacker News

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jacquesm on Aug 21, 2014 | parent | context | favorite | on: fork() can fail

Good luck writing a macro in C to express language functionality for which you don't have the primitives. It's not exactly lisp. Think of C macros as a way to save you some typing and lisp macros as a way to extend the language.

tedunangst on Aug 21, 2014 | [–]

setjmp and longjmp are sufficient building blocks for this.

xxs on Aug 21, 2014 | [–]

you can definitely save the chdir and restore it macro.

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