1 //===----------------------------------------------------------------------===//
2 //
3 //                     The LLVM Compiler Infrastructure
4 //
5 // This file is dual licensed under the MIT and the University of Illinois Open
6 // Source Licenses. See LICENSE.TXT for details.
7 //
8 //===----------------------------------------------------------------------===//
9 
10 // <deque>
11 
12 // void push_back(const value_type& v);
13 // void pop_back();
14 // void pop_front();
15 
16 #include <deque>
17 #include <cassert>
18 
19 #include "../../../min_allocator.h"
20 
21 template <class C>
22 C
23 make(int size, int start = 0 )
24 {
25     const int b = 4096 / sizeof(int);
26     int init = 0;
27     if (start > 0)
28     {
29         init = (start+1) / b + ((start+1) % b != 0);
30         init *= b;
31         --init;
32     }
33     C c(init, 0);
34     for (int i = 0; i < init-start; ++i)
35         c.pop_back();
36     for (int i = 0; i < size; ++i)
37         c.push_back(i);
38     for (int i = 0; i < start; ++i)
39         c.pop_front();
40     return c;
41 };
42 
43 template <class C>
44 void test(int size)
45 {
46     int rng[] = {0, 1, 2, 3, 1023, 1024, 1025, 2046, 2047, 2048, 2049};
47     const int N = sizeof(rng)/sizeof(rng[0]);
48     for (int j = 0; j < N; ++j)
49     {
50         C c = make<C>(size, rng[j]);
51         typename C::const_iterator it = c.begin();
52         for (int i = 0; i < size; ++i, ++it)
53             assert(*it == i);
54     }
55 }
56 
57 int main()
58 {
59     {
60     int rng[] = {0, 1, 2, 3, 1023, 1024, 1025, 2046, 2047, 2048, 2049, 4094, 4095, 4096};
61     const int N = sizeof(rng)/sizeof(rng[0]);
62     for (int j = 0; j < N; ++j)
63         test<std::deque<int> >(rng[j]);
64     }
65 #if __cplusplus >= 201103L
66     {
67     int rng[] = {0, 1, 2, 3, 1023, 1024, 1025, 2046, 2047, 2048, 2049, 4094, 4095, 4096};
68     const int N = sizeof(rng)/sizeof(rng[0]);
69     for (int j = 0; j < N; ++j)
70         test<std::deque<int, min_allocator<int>> >(rng[j]);
71     }
72 #endif
73 }
74