d63af4cdc8
Add more complex mixing of random seed.
...
This changes the sequences generated by Random for a given seed,
since the internal state will not be the same as for the unmixed
seed.
It is consistent between VM and dart2js.
The provided integer seed is hashed as follows:
uint64 hash = 0;
while (seed > 0) {
hash = hash * 1037 + mix64((int64)seed);
seed >>= 64;
}
where mix64 mixes the bits of a 64-bit value.
The hash is used to initialize the random generator's internal state.
R=floitsch@google.com , iposva@google.com
Review URL: https://codereview.chromium.org//156533002
git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@32412 260f80e4-7a28-3924-810f-c04153c831b5
2014-02-07 08:42:43 +00:00
f0bc9ff077
Change dart2js' Random to honor the seed.
...
Simulate the same RNG as the VM when a seed is passed.
BUG= http://dartbug.com/15426
R=floitsch@google.com
Review URL: https://codereview.chromium.org//104083003
git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@30893 260f80e4-7a28-3924-810f-c04153c831b5
2013-12-05 13:06:47 +00:00
c891612920
Adapt Random class to be able to run in javascript integer compatibility mode.
...
R=asiva@google.com , zra@google.com
Review URL: https://codereview.chromium.org//21966003
git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@25753 260f80e4-7a28-3924-810f-c04153c831b5
2013-08-02 23:07:55 +00:00
4271b30c89
- Extend the coin test for slightly different scenarios.
...
- Crank the generator a couple of times before returning
a newly allocated one.
Review URL: https://codereview.chromium.org//15356003
git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@23309 260f80e4-7a28-3924-810f-c04153c831b5
2013-05-28 22:15:07 +00:00
8fd6d0aafd
Remove Expect from core library.
...
Committed: https://code.google.com/p/dart/source/detail?r=19755
Reverted: http://code.google.com/p/dart/source/detail?r=19756
Review URL: https://codereview.chromium.org//12212016
git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@20996 260f80e4-7a28-3924-810f-c04153c831b5
2013-04-05 19:43:16 +00:00
5dc8107c53
Revert "Remove Expect from core library."
...
This reverts commit 19755.
Review URL: https://codereview.chromium.org//12743005
git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@19756 260f80e4-7a28-3924-810f-c04153c831b5
2013-03-09 03:19:07 +00:00
12dbd2fd70
Remove Expect from core library.
...
Review URL: https://codereview.chromium.org//12212016
git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@19755 260f80e4-7a28-3924-810f-c04153c831b5
2013-03-09 02:40:37 +00:00
b25d694633
- Avoid wrapping into Mints when generating random numbers.
...
- Update Random number tests.
- Fix String.fromCharCodes signature.
Review URL: https://codereview.chromium.org//12622002
git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@19642 260f80e4-7a28-3924-810f-c04153c831b5
2013-03-07 17:19:47 +00:00
lrn@google.com