std.random.RandomCover/randomCover - multiple declarations
Function randomCover
Covers a given range r in a random manner, i.e. goes through each
element of r once and only once, just in a random order. r
must be a random-access range with length.
auto auto randomCover(Range, UniformRNG)
(
Range r,
auto ref UniformRNG rng
)
if (isRandomAccessRange!Range && isUniformRNG!UniformRNG);
auto auto randomCover(Range)
(
Range r
)
if (isRandomAccessRange!Range);
If no random number generator is passed to randomCover, the
thread-global RNG rndGen will be used internally.
Parameters
| Name | Description |
|---|---|
| r | random-access range to cover |
| rng | (optional) random number generator to use;
if not specified, defaults to rndGen |
Returns
Range whose elements consist of the elements of r,
in random order. Will be a forward range if both r and
rng are forward ranges, an
input range otherwise.
Example
import stdStruct RandomCover
Covers a given range r in a random manner, i.e. goes through each
element of r once and only once, just in a random order. r
must be a random-access range with length.
struct RandomCover(Range, UniformRNG)
if (isRandomAccessRange!Range && (isUniformRNG!UniformRNG || is(UniformRNG == void)));
If no random number generator is passed to randomCover, the
thread-global RNG rndGen will be used internally.
Parameters
| Name | Description |
|---|---|
| r | random-access range to cover |
| rng | (optional) random number generator to use;
if not specified, defaults to rndGen |
Returns
Range whose elements consist of the elements of r,
in random order. Will be a forward range if both r and
rng are forward ranges, an
input range otherwise.
Example
import stdAuthors
Andrei Alexandrescu Masahiro Nakagawa (Xorshift random generator) Joseph Rushton Wakeling (Algorithm D for random sampling) Ilya Yaroshenko (Mersenne Twister implementation, adapted from mir-random)