/usr/lib/gcc/x86_64-linux-gnu/6/include/d/std/algorithm/internal.d is in libgphobos-6-dev 6.4.0-17ubuntu1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 | // Written in the D programming language.
/// Helper functions for std.algorithm package.
module std.algorithm.internal;
// Same as std.string.format, but "self-importing".
// Helps reduce code and imports, particularly in static asserts.
// Also helps with missing imports errors.
package template algoFormat()
{
import std.format : format;
alias algoFormat = format;
}
// Internal random array generators
version(unittest)
{
package enum size_t maxArraySize = 50;
package enum size_t minArraySize = maxArraySize - 1;
package string[] rndstuff(T : string)()
{
import std.random : Random, unpredictableSeed, uniform;
static Random rnd;
static bool first = true;
if (first)
{
rnd = Random(unpredictableSeed);
first = false;
}
string[] result =
new string[uniform(minArraySize, maxArraySize, rnd)];
string alpha = "abcdefghijABCDEFGHIJ";
foreach (ref s; result)
{
foreach (i; 0 .. uniform(0u, 20u, rnd))
{
auto j = uniform(0, alpha.length - 1, rnd);
s ~= alpha[j];
}
}
return result;
}
package int[] rndstuff(T : int)()
{
import std.random : Random, unpredictableSeed, uniform;
static Random rnd;
static bool first = true;
if (first)
{
rnd = Random(unpredictableSeed);
first = false;
}
int[] result = new int[uniform(minArraySize, maxArraySize, rnd)];
foreach (ref i; result)
{
i = uniform(-100, 100, rnd);
}
return result;
}
package double[] rndstuff(T : double)()
{
double[] result;
foreach (i; rndstuff!(int)())
{
result ~= i / 50.0;
}
return result;
}
}
package T* addressOf(T)(ref T val) { return &val; }
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