chunker.internal.helpers source code

1 /// Helpers used in tests and examples.
2 module chunker.internal.helpers;
3 
4 package(chunker):
5 
6 private import chunker.internal.gorng;
7 
8 ubyte[] getRandom(int seed, int count)
9 {
10 	import std.random : Random, uniform;
11 	auto buf = new ubyte[count];
12 
13 	RNGSource rnd;
14 	.seed(&rnd, seed);
15 	for (auto i = 0; i < count; i += 4)
16 	{
17 		auto r = int63(&rnd) >> 31;
18 		buf[i] = cast(ubyte)(r);
19 		buf[i+1] = cast(ubyte)(r >> 8);
20 		buf[i+2] = cast(ubyte)(r >> 16);
21 		buf[i+3] = cast(ubyte)(r >> 24);
22 	}
23 
24 	return buf;
25 }