This file is indexed.

/usr/include/d/std/container/util.d is in libphobos2-ldc-dev 1:0.17.1-1ubuntu1.

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
 78
 79
 80
 81
 82
 83
 84
 85
 86
 87
 88
 89
 90
 91
 92
 93
 94
 95
 96
 97
 98
 99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
/**
This module contains some common utilities used by containers.

This module is a submodule of $(LINK2 std_container.html, std.container).

Source: $(PHOBOSSRC std/container/_util.d)
Macros:
WIKI = Phobos/StdContainer
TEXTWITHCOMMAS = $0

Copyright: Red-black tree code copyright (C) 2008- by Steven Schveighoffer. Other code
copyright 2010- Andrei Alexandrescu. All rights reserved by the respective holders.

License: Distributed under the Boost Software License, Version 1.0.
(See accompanying file LICENSE_1_0.txt or copy at $(WEB
boost.org/LICENSE_1_0.txt)).

Authors: Steven Schveighoffer, $(WEB erdani.com, Andrei Alexandrescu)
*/
module std.container.util;

/**
Returns an initialized object. This function is mainly for eliminating
construction differences between structs and classes. It allows code to not
worry about whether the type it's constructing is a struct or a class.
 */
template make(T)
if (is(T == struct) || is(T == class))
{
    T make(Args...)(Args arguments)
    if (is(T == struct) && __traits(compiles, T(arguments)))
    {
        // constructing an std.container.Array without arguments,
        // does not initialize its payload and is equivalent
        // to a null reference. We therefore construct an empty container
        // by passing an empty array to its constructor.
        // Issue #13872.
        static if(arguments.length == 0)
        {
            import std.range;
            alias ET = ElementType!(T.Range);
            return T(ET[].init);
        }
        else
            return T(arguments);
    }

    T make(Args...)(Args arguments)
    if (is(T == class) && __traits(compiles, new T(arguments)))
    {
        return new T(arguments);
    }
}


///
unittest
{
    import std.container;
    import std.algorithm : equal;
    import std.algorithm : equal;

    auto arr = make!(Array!int)([4, 2, 3, 1]);
    assert(equal(arr[], [4, 2, 3, 1]));

    auto rbt = make!(RedBlackTree!(int, "a > b"))([4, 2, 3, 1]);
    assert(equal(rbt[], [4, 3, 2, 1]));

    alias makeList = make!(SList!int);
    auto slist = makeList(1, 2, 3);
    assert(equal(slist[], [1, 2, 3]));
}

unittest
{
    import std.container;
    import std.algorithm : equal;

    auto arr1 = make!(Array!dchar)();
    assert(arr1.empty);
    auto arr2 = make!(Array!dchar)("hello"d);
    assert(equal(arr2[], "hello"d));

    auto rtb1 = make!(RedBlackTree!dchar)();
    assert(rtb1.empty);
    auto rtb2 = make!(RedBlackTree!dchar)('h', 'e', 'l', 'l', 'o');
    assert(equal(rtb2[], "ehlo"d));
}

// Issue 8895
unittest
{
    import std.container;
    import std.algorithm : equal;

    auto a = make!(DList!int)(1,2,3,4);
    auto b = make!(DList!int)(1,2,3,4);
    auto c = make!(DList!int)(1,2,3,5);
    auto d = make!(DList!int)(1,2,3,4,5);
    assert(a == b); // this better terminate!
    assert(a != c);
    assert(a != d);
}

/**
 * Convenience function for constructing a generic container.
 */
template make(alias Container, Args...)
    if(!is(Container))
{
    import std.range : isInputRange;
    import std.traits : isDynamicArray;

    auto make(Range)(Range range)
        if(!isDynamicArray!Range && isInputRange!Range)
    {
        import std.range : ElementType;
        return .make!(Container!(ElementType!Range, Args))(range);
    }

    auto make(T)(T[] items...)
    {
        return .make!(Container!(T, Args))(items);
    }
}

///
unittest
{
    import std.container.array, std.container.rbtree, std.container.slist;
    import std.range : iota;
    import std.algorithm : equal;

    auto arr = make!Array(iota(5));
    assert(equal(arr[], [0, 1, 2, 3, 4]));

    auto rbtmax = make!(RedBlackTree, "a > b")(iota(5));
    assert(equal(rbtmax[], [4, 3, 2, 1, 0]));

    auto rbtmin = make!RedBlackTree(4, 1, 3, 2);
    assert(equal(rbtmin[], [1, 2, 3, 4]));

    alias makeList = make!SList;
    auto list = makeList(1, 7, 42);
    assert(equal(list[], [1, 7, 42]));
}

unittest
{
    import std.container.rbtree;
    import std.algorithm : equal;

    auto rbtmin = make!(RedBlackTree, "a < b", false)(3, 2, 2, 1);
    assert(equal(rbtmin[], [1, 2, 3]));
}

// Issue 13872
unittest
{
    import std.container;

    auto tree1 = make!(RedBlackTree!int)();
    auto refToTree1 = tree1;
    refToTree1.insert(1);
    assert(1 in tree1);

    auto array1 = make!(Array!int)();
    auto refToArray1 = array1;
    refToArray1.insertBack(1);
    assert(!array1.empty);

    auto slist = make!(SList!int)();
    auto refToSlist = slist;
    refToSlist.insert(1);
    assert(!slist.empty);

    auto dlist = make!(DList!int)();
    auto refToDList = dlist;
    refToDList.insert(1);
    assert(!dlist.empty);
}