shithub: mc

Download patch

ref: e157c1733098280a2e0bcfe3fa59bc7c46dfc131
parent: af8bf2d89e9b7c066a13f450f71f800b562d78c0
author: andrewc <andrew_chambers@trimble.com>
date: Thu Jan 14 12:58:48 EST 2016

add randbytes to stdlib

--- a/lib/std/rand.myr
+++ b/lib/std/rand.myr
@@ -56,6 +56,7 @@
 
 	generic rand	: (lo : @a::(numeric,integral), hi : @a::(numeric,integral) -> @a::(numeric,integral))
 	generic randnum	: (-> @a::(numeric,integral))
+	const randbytes	: (buf : byte[:]	-> size)
 
 	generic rngrand	: (rng : rng#, lo : @a::(numeric,integral), hi : @a::(numeric,integral) -> @a::(numeric,integral))
 	generic rngrandnum	: (rng : rng# -> @a::(numeric,integral))
@@ -103,6 +104,10 @@
 	-> rngrandnum(_rng)
 }
 
+const randbytes = {buf
+	-> rngrandbytes(_rng, buf)
+}
+
 /*
    Generates a random integer from `rng` in the range [lo, hi),
    returning the value. The range [lo, hi) must be positive,
@@ -182,7 +187,6 @@
 		r >>= 8
 	;;
 	-> n
-
 }
 
 /* updates random number generator state when we tick over. */