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| author | andrewc <andrew_chambers@trimble.com> | 2016-01-14 17:58:48 +1300 |
|---|---|---|
| committer | andrewc <andrew_chambers@trimble.com> | 2016-01-14 17:58:48 +1300 |
| commit | e157c1733098280a2e0bcfe3fa59bc7c46dfc131 (patch) | |
| tree | 67311e7c3d0f769ac6f0e19d4c64e4fb8de9d982 /lib/std/rand.myr | |
| parent | af8bf2d89e9b7c066a13f450f71f800b562d78c0 (diff) | |
| download | mc-e157c1733098280a2e0bcfe3fa59bc7c46dfc131.tar.gz | |
add randbytes to stdlib
Diffstat (limited to 'lib/std/rand.myr')
| -rw-r--r-- | lib/std/rand.myr | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/lib/std/rand.myr b/lib/std/rand.myr index 566a4cf..91dd774 100644 --- a/lib/std/rand.myr +++ b/lib/std/rand.myr @@ -56,6 +56,7 @@ pkg std = 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 @@ generic randnum = { -> 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 @@ const rngrandbytes = {rng, buf r >>= 8 ;; -> n - } /* updates random number generator state when we tick over. */ |