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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 // <deque>
     11 
     12 // template <class InputIterator>
     13 //   void assign(InputIterator f, InputIterator l);
     14 
     15 #include <deque>
     16 #include <cassert>
     17 #include <cstddef>
     18 
     19 #include "test_macros.h"
     20 #include "test_iterators.h"
     21 #include "min_allocator.h"
     22 
     23 template <class C>
     24 C
     25 make(int size, int start = 0 )
     26 {
     27     const int b = 4096 / sizeof(int);
     28     int init = 0;
     29     if (start > 0)
     30     {
     31         init = (start+1) / b + ((start+1) % b != 0);
     32         init *= b;
     33         --init;
     34     }
     35     C c(init, 0);
     36     for (int i = 0; i < init-start; ++i)
     37         c.pop_back();
     38     for (int i = 0; i < size; ++i)
     39         c.push_back(i);
     40     for (int i = 0; i < start; ++i)
     41         c.pop_front();
     42     return c;
     43 }
     44 
     45 template <class C>
     46 void
     47 test(C& c1, const C& c2)
     48 {
     49     c1.assign(c2.begin(), c2.end());
     50     assert(static_cast<std::size_t>(distance(c1.begin(), c1.end())) == c1.size());
     51     assert(c1 == c2);
     52 }
     53 
     54 template <class C>
     55 void
     56 testN(int start, int N, int M)
     57 {
     58     C c1 = make<C>(N, start);
     59     C c2 = make<C>(M);
     60     test(c1, c2);
     61 }
     62 
     63 template <class C>
     64 void
     65 testI(C& c1, const C& c2)
     66 {
     67     typedef typename C::const_iterator CI;
     68     typedef input_iterator<CI> ICI;
     69     c1.assign(ICI(c2.begin()), ICI(c2.end()));
     70     assert(static_cast<std::size_t>(distance(c1.begin(), c1.end())) == c1.size());
     71     assert(c1 == c2);
     72 }
     73 
     74 template <class C>
     75 void
     76 testNI(int start, int N, int M)
     77 {
     78     C c1 = make<C>(N, start);
     79     C c2 = make<C>(M);
     80     testI(c1, c2);
     81 }
     82 
     83 int main()
     84 {
     85     {
     86     int rng[] = {0, 1, 2, 3, 1023, 1024, 1025, 2047, 2048, 2049};
     87     const int N = sizeof(rng)/sizeof(rng[0]);
     88     for (int i = 0; i < N; ++i)
     89         for (int j = 0; j < N; ++j)
     90             for (int k = 0; k < N; ++k)
     91                 testN<std::deque<int> >(rng[i], rng[j], rng[k]);
     92     testNI<std::deque<int> >(1500, 2000, 1000);
     93     }
     94 #if TEST_STD_VER >= 11
     95     {
     96     int rng[] = {0, 1, 2, 3, 1023, 1024, 1025, 2047, 2048, 2049};
     97     const int N = sizeof(rng)/sizeof(rng[0]);
     98     for (int i = 0; i < N; ++i)
     99         for (int j = 0; j < N; ++j)
    100             for (int k = 0; k < N; ++k)
    101                 testN<std::deque<int, min_allocator<int>> >(rng[i], rng[j], rng[k]);
    102     testNI<std::deque<int, min_allocator<int>> >(1500, 2000, 1000);
    103     }
    104 #endif
    105 }
    106