John Messerly
89651ccdef
the only human authored changes here are tool/patch_sdk.dart R=vsm@google.com Review URL: https://codereview.chromium.org/959913003
42 lines
1.3 KiB
Dart
42 lines
1.3 KiB
Dart
// Copyright (c) 2012, the Dart project authors. Please see the AUTHORS file
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// for details. All rights reserved. Use of this source code is governed by a
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// BSD-style license that can be found in the LICENSE file.
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part of dart.math;
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/**
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* A generator of random bool, int, or double values.
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*
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* The default implementation supplies a stream of
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* pseudo-random bits that are not suitable for cryptographic purposes.
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*/
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abstract class Random {
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/**
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* Creates a random-number generator. The optional parameter [seed] is used
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* to initialize the internal state of the generator. The implementation of
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* the random stream can change between releases of the library.
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*/
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factory Random([int seed]) =>
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(seed == null) ? const _JSRandom() : new _Random(seed);
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/**
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* Generates a positive random integer uniformly distributed on the range
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* from 0, inclusive, to [max], exclusive.
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*
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* Implementation note: The default implementation supports [max] values
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* between 1 and ((1<<32) - 1) inclusive.
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*/
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int nextInt(int max);
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/**
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* Generates a positive random floating point value uniformly distributed on
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* the range from 0.0, inclusive, to 1.0, exclusive.
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*/
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double nextDouble();
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/**
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* Generates a random boolean value.
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*/
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bool nextBool();
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}
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