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