/usr/lib/gcc/x86_64-linux-gnu/5/include/d/rt/util/container/array.d is in libphobos-5-dev 5.5.0-12ubuntu1.
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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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 | /**
* Array container for internal usage.
*
* Copyright: Copyright Martin Nowak 2013.
* License: $(WEB www.boost.org/LICENSE_1_0.txt, Boost License 1.0).
* Authors: Martin Nowak
*/
module rt.util.container.array;
static import common = rt.util.container.common;
struct Array(T)
{
nothrow:
@disable this(this);
~this()
{
reset();
}
void reset()
{
length = 0;
}
@property size_t length() const
{
return _length;
}
@property void length(size_t nlength)
{
if (nlength < length)
foreach (ref val; _ptr[nlength .. length]) common.destroy(val);
_ptr = cast(T*)common.xrealloc(_ptr, nlength * T.sizeof);
if (nlength > length)
foreach (ref val; _ptr[length .. nlength]) common.initialize(val);
_length = nlength;
}
@property bool empty() const
{
return !length;
}
@property ref inout(T) front() inout
in { assert(!empty); }
body
{
return _ptr[0];
}
@property ref inout(T) back() inout
in { assert(!empty); }
body
{
return _ptr[_length - 1];
}
ref inout(T) opIndex(size_t idx) inout
in { assert(idx < length); }
body
{
return _ptr[idx];
}
inout(T)[] opSlice() inout
{
return _ptr[0 .. _length];
}
inout(T)[] opSlice(size_t a, size_t b) inout
in { assert(a < b && b <= length); }
body
{
return _ptr[a .. b];
}
alias length opDollar;
void insertBack()(auto ref T val)
{
length = length + 1;
back = val;
}
void popBack()
{
length = length - 1;
}
void remove(size_t idx)
in { assert(idx < length); }
body
{
foreach (i; idx .. length - 1)
_ptr[i] = _ptr[i+1];
popBack();
}
void swap(ref Array other)
{
auto ptr = _ptr;
_ptr = other._ptr;
other._ptr = ptr;
immutable len = _length;
_length = other._length;
other._length = len;
}
private:
T* _ptr;
size_t _length;
}
unittest
{
Array!size_t ary;
assert(ary[] == []);
ary.insertBack(5);
assert(ary[] == [5]);
assert(ary[$-1] == 5);
ary.popBack();
assert(ary[] == []);
ary.insertBack(0);
ary.insertBack(1);
assert(ary[] == [0, 1]);
assert(ary[0 .. 1] == [0]);
assert(ary[1 .. 2] == [1]);
assert(ary[$ - 2 .. $] == [0, 1]);
size_t idx;
foreach (val; ary) assert(idx++ == val);
foreach_reverse (val; ary) assert(--idx == val);
foreach (i, val; ary) assert(i == val);
foreach_reverse (i, val; ary) assert(i == val);
ary.insertBack(2);
ary.remove(1);
assert(ary[] == [0, 2]);
assert(!ary.empty);
ary.reset();
assert(ary.empty);
ary.insertBack(0);
assert(!ary.empty);
destroy(ary);
assert(ary.empty);
// not copyable
static assert(!__traits(compiles, { Array!size_t ary2 = ary; }));
Array!size_t ary2;
static assert(!__traits(compiles, ary = ary2));
static void foo(Array!size_t copy) {}
static assert(!__traits(compiles, foo(ary)));
ary2.insertBack(0);
assert(ary.empty);
assert(ary2[] == [0]);
ary.swap(ary2);
assert(ary[] == [0]);
assert(ary2.empty);
}
unittest
{
alias RC = common.RC;
Array!RC ary;
size_t cnt;
assert(cnt == 0);
ary.insertBack(RC(&cnt));
assert(cnt == 1);
ary.insertBack(RC(&cnt));
assert(cnt == 2);
ary.back = ary.front;
assert(cnt == 2);
ary.popBack();
assert(cnt == 1);
ary.popBack();
assert(cnt == 0);
}
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