ref: f666a9b2a62c4f8588c6add2bcc2071f95ef357c
dir: /libstd/sljoin.myr/
use "alloc.use"
use "slcp.use"
pkg std =
generic sljoin : (dst : @a[:], src : @a[:] -> @a[:])
;;
generic sljoin = {dst, src
var len
len = dst.len
dst = slgrow(dst, len + src.len)
slcp(dst[len:], src)
-> dst
}