4 ms·It's only useless until you discover that you're reimplementing it from scratch on a full-time basis.by krakensden 12y agoIt's only useless until you discover that you're reimplementing it from scratch on a full-time basis.monocasa 12y agoBecause you don't use libraries?pjmlp 12y agoI assume you program in pure C without libc, using only syscalls for your OS of choice.