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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 // void assign(size_type n, const value_type& v);
     13 
     14 #include <deque>
     15 #include <cassert>
     16 
     17 #include "test_iterators.h"
     18 
     19 std::deque<int>
     20 make(int size, int start = 0 )
     21 {
     22     const int b = 4096 / sizeof(int);
     23     int init = 0;
     24     if (start > 0)
     25     {
     26         init = (start+1) / b + ((start+1) % b != 0);
     27         init *= b;
     28         --init;
     29     }
     30     std::deque<int> c(init, 0);
     31     for (int i = 0; i < init-start; ++i)
     32         c.pop_back();
     33     for (int i = 0; i < size; ++i)
     34         c.push_back(i);
     35     for (int i = 0; i < start; ++i)
     36         c.pop_front();
     37     return c;
     38 };
     39 
     40 void
     41 test(std::deque<int>& c1, int size, int v)
     42 {
     43     typedef std::deque<int> C;
     44     typedef C::const_iterator CI;
     45     std::size_t c1_osize = c1.size();
     46     c1.assign(size, v);
     47     assert(c1.size() == size);
     48     assert(distance(c1.begin(), c1.end()) == c1.size());
     49     for (CI i = c1.begin(); i != c1.end(); ++i)
     50         assert(*i == v);
     51 }
     52 
     53 void
     54 testN(int start, int N, int M)
     55 {
     56     typedef std::deque<int> C;
     57     typedef C::iterator I;
     58     typedef C::const_iterator CI;
     59     C c1 = make(N, start);
     60     test(c1, M, -10);
     61 }
     62 
     63 int main()
     64 {
     65     int rng[] = {0, 1, 2, 3, 1023, 1024, 1025, 2047, 2048, 2049};
     66     const int N = sizeof(rng)/sizeof(rng[0]);
     67     for (int i = 0; i < N; ++i)
     68         for (int j = 0; j < N; ++j)
     69             for (int k = 0; k < N; ++k)
     70                 testN(rng[i], rng[j], rng[k]);
     71 }
     72