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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 // REQUIRES: long_tests
     11 
     12 // <deque>
     13 
     14 // iterator insert (const_iterator p, size_type n, const value_type& v);
     15 
     16 #include <deque>
     17 #include <cassert>
     18 
     19 #include "min_allocator.h"
     20 
     21 template <class C>
     22 C
     23 make(int size, int start = 0 )
     24 {
     25     const int b = 4096 / sizeof(int);
     26     int init = 0;
     27     if (start > 0)
     28     {
     29         init = (start+1) / b + ((start+1) % b != 0);
     30         init *= b;
     31         --init;
     32     }
     33     C c(init, 0);
     34     for (int i = 0; i < init-start; ++i)
     35         c.pop_back();
     36     for (int i = 0; i < size; ++i)
     37         c.push_back(i);
     38     for (int i = 0; i < start; ++i)
     39         c.pop_front();
     40     return c;
     41 }
     42 
     43 template <class C>
     44 void
     45 test(int P, C& c1, int size, int x)
     46 {
     47     typedef typename C::iterator I;
     48     typedef typename C::const_iterator CI;
     49     std::size_t c1_osize = c1.size();
     50     CI i = c1.insert(c1.begin() + P, size, x);
     51     assert(i == c1.begin() + P);
     52     assert(c1.size() == c1_osize + size);
     53     assert(distance(c1.begin(), c1.end()) == c1.size());
     54     i = c1.begin();
     55     for (int j = 0; j < P; ++j, ++i)
     56         assert(*i == j);
     57     for (int j = 0; j < size; ++j, ++i)
     58         assert(*i == x);
     59     for (int j = P; j < c1_osize; ++j, ++i)
     60         assert(*i == j);
     61 }
     62 
     63 template <class C>
     64 void
     65 testN(int start, int N, int M)
     66 {
     67     typedef typename C::iterator I;
     68     typedef typename C::const_iterator CI;
     69     for (int i = 0; i <= 3; ++i)
     70     {
     71         if (0 <= i && i <= N)
     72         {
     73             C c1 = make<C>(N, start);
     74             test(i, c1, M, -10);
     75         }
     76     }
     77     for (int i = M-1; i <= M+1; ++i)
     78     {
     79         if (0 <= i && i <= N)
     80         {
     81             C c1 = make<C>(N, start);
     82             test(i, c1, M, -10);
     83         }
     84     }
     85     for (int i = N/2-1; i <= N/2+1; ++i)
     86     {
     87         if (0 <= i && i <= N)
     88         {
     89             C c1 = make<C>(N, start);
     90             test(i, c1, M, -10);
     91         }
     92     }
     93     for (int i = N - M - 1; i <= N - M + 1; ++i)
     94     {
     95         if (0 <= i && i <= N)
     96         {
     97             C c1 = make<C>(N, start);
     98             test(i, c1, M, -10);
     99         }
    100     }
    101     for (int i = N - 3; i <= N; ++i)
    102     {
    103         if (0 <= i && i <= N)
    104         {
    105             C c1 = make<C>(N, start);
    106             test(i, c1, M, -10);
    107         }
    108     }
    109 }
    110 
    111 template <class C>
    112 void
    113 self_reference_test()
    114 {
    115     typedef typename C::const_iterator CI;
    116     for (int i = 0; i < 20; ++i)
    117     {
    118         for (int j = 0; j < 20; ++j)
    119         {
    120             C c = make<C>(20);
    121             CI it = c.cbegin() + i;
    122             CI jt = c.cbegin() + j;
    123             c.insert(it, 5, *jt);
    124             assert(c.size() == 25);
    125             assert(distance(c.begin(), c.end()) == c.size());
    126             it = c.cbegin();
    127             for (int k = 0; k < i; ++k, ++it)
    128                 assert(*it == k);
    129             for (int k = 0; k < 5; ++k, ++it)
    130                 assert(*it == j);
    131             for (int k = i; k < 20; ++k, ++it)
    132                 assert(*it == k);
    133         }
    134     }
    135 }
    136 
    137 int main()
    138 {
    139     {
    140     int rng[] = {0, 1, 2, 3, 1023, 1024, 1025, 2047, 2048, 2049};
    141     const int N = sizeof(rng)/sizeof(rng[0]);
    142     for (int i = 0; i < N; ++i)
    143         for (int j = 0; j < N; ++j)
    144             for (int k = 0; k < N; ++k)
    145                 testN<std::deque<int> >(rng[i], rng[j], rng[k]);
    146     self_reference_test<std::deque<int> >();
    147     }
    148 #if __cplusplus >= 201103L
    149     {
    150     int rng[] = {0, 1, 2, 3, 1023, 1024, 1025, 2047, 2048, 2049};
    151     const int N = sizeof(rng)/sizeof(rng[0]);
    152     for (int i = 0; i < N; ++i)
    153         for (int j = 0; j < N; ++j)
    154             for (int k = 0; k < N; ++k)
    155                 testN<std::deque<int, min_allocator<int>> >(rng[i], rng[j], rng[k]);
    156     self_reference_test<std::deque<int, min_allocator<int>> >();
    157     }
    158 #endif
    159 }
    160