ref: 6cf64ac765264c305b91b3062ef8e3525e83add5
dir: /libstd/mkpath.myr/
use "syswrap.use"
use "errno.use"
pkg std =
const mkpath : (p : byte[:] -> bool)
;;
const mkpath = {p
var st
var i
for i = 0; i < p.len; i++
if p[i] == '/' castto(byte) && i != 0
st = mkdir(p[:i], 0o777)
if st != 0 && (st castto(errno)) != Eexist
-> false
;;
;;
;;
-> true
}