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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 // <forward_list>
     11 
     12 // iterator insert_after(const_iterator p, initializer_list<value_type> il);
     13 
     14 #include <forward_list>
     15 #include <cassert>
     16 
     17 #include "min_allocator.h"
     18 
     19 int main()
     20 {
     21 #ifndef _LIBCPP_HAS_NO_GENERALIZED_INITIALIZERS
     22     {
     23         typedef int T;
     24         typedef std::forward_list<T> C;
     25         typedef C::iterator I;
     26         C c;
     27         I i = c.insert_after(c.cbefore_begin(), {});
     28         assert(i == c.before_begin());
     29         assert(distance(c.begin(), c.end()) == 0);
     30 
     31         i = c.insert_after(c.cbefore_begin(), {0, 1, 2});
     32         assert(i == next(c.before_begin(), 3));
     33         assert(distance(c.begin(), c.end()) == 3);
     34         assert(*next(c.begin(), 0) == 0);
     35         assert(*next(c.begin(), 1) == 1);
     36         assert(*next(c.begin(), 2) == 2);
     37 
     38         i = c.insert_after(c.begin(), {3, 4});
     39         assert(i == next(c.begin(), 2));
     40         assert(distance(c.begin(), c.end()) == 5);
     41         assert(*next(c.begin(), 0) == 0);
     42         assert(*next(c.begin(), 1) == 3);
     43         assert(*next(c.begin(), 2) == 4);
     44         assert(*next(c.begin(), 3) == 1);
     45         assert(*next(c.begin(), 4) == 2);
     46     }
     47 #if __cplusplus >= 201103L
     48     {
     49         typedef int T;
     50         typedef std::forward_list<T, min_allocator<T>> C;
     51         typedef C::iterator I;
     52         C c;
     53         I i = c.insert_after(c.cbefore_begin(), {});
     54         assert(i == c.before_begin());
     55         assert(distance(c.begin(), c.end()) == 0);
     56 
     57         i = c.insert_after(c.cbefore_begin(), {0, 1, 2});
     58         assert(i == next(c.before_begin(), 3));
     59         assert(distance(c.begin(), c.end()) == 3);
     60         assert(*next(c.begin(), 0) == 0);
     61         assert(*next(c.begin(), 1) == 1);
     62         assert(*next(c.begin(), 2) == 2);
     63 
     64         i = c.insert_after(c.begin(), {3, 4});
     65         assert(i == next(c.begin(), 2));
     66         assert(distance(c.begin(), c.end()) == 5);
     67         assert(*next(c.begin(), 0) == 0);
     68         assert(*next(c.begin(), 1) == 3);
     69         assert(*next(c.begin(), 2) == 4);
     70         assert(*next(c.begin(), 3) == 1);
     71         assert(*next(c.begin(), 4) == 2);
     72     }
     73 #endif
     74 #endif  // _LIBCPP_HAS_NO_GENERALIZED_INITIALIZERS
     75 }
     76