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
|
//===- RangeAdapterTest.cpp - Unit tests for range adapters --------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#include "llvm/ADT/iterator_range.h"
#include "llvm/ADT/STLExtras.h"
#include "gtest/gtest.h"
#include <iterator>
#include <list>
#include <vector>
using namespace llvm;
namespace {
// A wrapper around vector which exposes rbegin(), rend().
class ReverseOnlyVector {
std::vector<int> Vec;
public:
ReverseOnlyVector(std::initializer_list<int> list) : Vec(list) {}
typedef std::vector<int>::reverse_iterator reverse_iterator;
typedef std::vector<int>::const_reverse_iterator const_reverse_iterator;
reverse_iterator rbegin() { return Vec.rbegin(); }
reverse_iterator rend() { return Vec.rend(); }
const_reverse_iterator rbegin() const { return Vec.rbegin(); }
const_reverse_iterator rend() const { return Vec.rend(); }
};
// A wrapper around vector which exposes begin(), end(), rbegin() and rend().
// begin() and end() don't have implementations as this ensures that we will
// get a linker error if reverse() chooses begin()/end() over rbegin(), rend().
class BidirectionalVector {
std::vector<int> Vec;
public:
BidirectionalVector(std::initializer_list<int> list) : Vec(list) {}
typedef std::vector<int>::iterator iterator;
iterator begin();
iterator end();
typedef std::vector<int>::reverse_iterator reverse_iterator;
reverse_iterator rbegin() { return Vec.rbegin(); }
reverse_iterator rend() { return Vec.rend(); }
};
/// This is the same as BidirectionalVector but with the addition of const
/// begin/rbegin methods to ensure that the type traits for has_rbegin works.
class BidirectionalVectorConsts {
std::vector<int> Vec;
public:
BidirectionalVectorConsts(std::initializer_list<int> list) : Vec(list) {}
typedef std::vector<int>::iterator iterator;
typedef std::vector<int>::const_iterator const_iterator;
iterator begin();
iterator end();
const_iterator begin() const;
const_iterator end() const;
typedef std::vector<int>::reverse_iterator reverse_iterator;
typedef std::vector<int>::const_reverse_iterator const_reverse_iterator;
reverse_iterator rbegin() { return Vec.rbegin(); }
reverse_iterator rend() { return Vec.rend(); }
const_reverse_iterator rbegin() const { return Vec.rbegin(); }
const_reverse_iterator rend() const { return Vec.rend(); }
};
template <typename R> void TestRev(const R &r) {
int counter = 3;
for (int i : r)
EXPECT_EQ(i, counter--);
}
// Test fixture
template <typename T> class RangeAdapterLValueTest : public ::testing::Test {};
typedef ::testing::Types<std::vector<int>, std::list<int>, int[4]>
RangeAdapterLValueTestTypes;
TYPED_TEST_CASE(RangeAdapterLValueTest, RangeAdapterLValueTestTypes);
TYPED_TEST(RangeAdapterLValueTest, TrivialOperation) {
TypeParam v = {0, 1, 2, 3};
TestRev(reverse(v));
const TypeParam c = {0, 1, 2, 3};
TestRev(reverse(c));
}
template <typename T> struct RangeAdapterRValueTest : testing::Test {};
typedef ::testing::Types<std::vector<int>, std::list<int>, ReverseOnlyVector,
BidirectionalVector,
BidirectionalVectorConsts> RangeAdapterRValueTestTypes;
TYPED_TEST_CASE(RangeAdapterRValueTest, RangeAdapterRValueTestTypes);
TYPED_TEST(RangeAdapterRValueTest, TrivialOperation) {
TestRev(reverse(TypeParam({0, 1, 2, 3})));
}
TYPED_TEST(RangeAdapterRValueTest, HasRbegin) {
EXPECT_TRUE(has_rbegin<TypeParam>::value);
}
} // anonymous namespace
|
