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      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 // UNSUPPORTED: c++98, c++03
     11 
     12 // <deque>
     13 
     14 // void push_back(value_type&& v);
     15 // void pop_back();
     16 // void pop_front();
     17 
     18 #include <deque>
     19 #include <cassert>
     20 
     21 #include "MoveOnly.h"
     22 #include "min_allocator.h"
     23 
     24 
     25 template <class C>
     26 C
     27 make(int size, int start = 0 )
     28 {
     29     const int b = 4096 / sizeof(int);
     30     int init = 0;
     31     if (start > 0)
     32     {
     33         init = (start+1) / b + ((start+1) % b != 0);
     34         init *= b;
     35         --init;
     36     }
     37     C c(init);
     38     for (int i = 0; i < init-start; ++i)
     39         c.pop_back();
     40     for (int i = 0; i < size; ++i)
     41         c.push_back(MoveOnly(i));
     42     for (int i = 0; i < start; ++i)
     43         c.pop_front();
     44     return c;
     45 }
     46 
     47 template <class C>
     48 void test(int size)
     49 {
     50     int rng[] = {0, 1, 2, 3, 1023, 1024, 1025, 2046, 2047, 2048, 2049};
     51     const int N = sizeof(rng)/sizeof(rng[0]);
     52     for (int j = 0; j < N; ++j)
     53     {
     54         C c = make<C>(size, rng[j]);
     55         typename C::const_iterator it = c.begin();
     56         for (int i = 0; i < size; ++i, ++it)
     57             assert(*it == MoveOnly(i));
     58     }
     59 }
     60 
     61 
     62 int main()
     63 {
     64     {
     65     int rng[] = {0, 1, 2, 3, 1023, 1024, 1025, 2046, 2047, 2048, 2049, 4094, 4095, 4096};
     66     const int N = sizeof(rng)/sizeof(rng[0]);
     67     for (int j = 0; j < N; ++j)
     68         test<std::deque<MoveOnly> >(rng[j]);
     69     }
     70     {
     71     int rng[] = {0, 1, 2, 3, 1023, 1024, 1025, 2046, 2047, 2048, 2049, 4094, 4095, 4096};
     72     const int N = sizeof(rng)/sizeof(rng[0]);
     73     for (int j = 0; j < N; ++j)
     74         test<std::deque<MoveOnly, min_allocator<MoveOnly>> >(rng[j]);
     75     }
     76 }
     77