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 // template <class... Args> void emplace_back(Args&&... args);
13
14 #include <deque>
15 #include <cassert>
16
17 #include "../../../Emplaceable.h"
18 #include "min_allocator.h"
19
20 #ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
21
22 template <class C>
23 C
make(int size,int start=0)24 make(int size, int start = 0 )
25 {
26 const int b = 4096 / sizeof(int);
27 int init = 0;
28 if (start > 0)
29 {
30 init = (start+1) / b + ((start+1) % b != 0);
31 init *= b;
32 --init;
33 }
34 C c(init);
35 for (int i = 0; i < init-start; ++i)
36 c.pop_back();
37 for (int i = 0; i < size; ++i)
38 c.push_back(Emplaceable());
39 for (int i = 0; i < start; ++i)
40 c.pop_front();
41 return c;
42 };
43
44 template <class C>
45 void
test(C & c1)46 test(C& c1)
47 {
48 typedef typename C::iterator I;
49 std::size_t c1_osize = c1.size();
50 c1.emplace_back(Emplaceable(1, 2.5));
51 assert(c1.size() == c1_osize + 1);
52 assert(distance(c1.begin(), c1.end()) == c1.size());
53 I i = c1.end();
54 assert(*--i == Emplaceable(1, 2.5));
55 }
56
57 template <class C>
58 void
testN(int start,int N)59 testN(int start, int N)
60 {
61 C c1 = make<C>(N, start);
62 test(c1);
63 }
64
65 #endif // _LIBCPP_HAS_NO_RVALUE_REFERENCES
66
main()67 int main()
68 {
69 #ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
70 {
71 int rng[] = {0, 1, 2, 3, 1023, 1024, 1025, 2047, 2048, 2049};
72 const int N = sizeof(rng)/sizeof(rng[0]);
73 for (int i = 0; i < N; ++i)
74 for (int j = 0; j < N; ++j)
75 testN<std::deque<Emplaceable> >(rng[i], rng[j]);
76 }
77 #if __cplusplus >= 201103L
78 {
79 int rng[] = {0, 1, 2, 3, 1023, 1024, 1025, 2047, 2048, 2049};
80 const int N = sizeof(rng)/sizeof(rng[0]);
81 for (int i = 0; i < N; ++i)
82 for (int j = 0; j < N; ++j)
83 testN<std::deque<Emplaceable, min_allocator<Emplaceable>> >(rng[i], rng[j]);
84 }
85 #endif
86 #endif // _LIBCPP_HAS_NO_RVALUE_REFERENCES
87 }
88