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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 // <unordered_set>
     11 
     12 // template <class Value, class Hash = hash<Value>, class Pred = equal_to<Value>,
     13 //           class Alloc = allocator<Value>>
     14 // class unordered_set
     15 
     16 // float max_load_factor() const;
     17 // void max_load_factor(float mlf);
     18 
     19 #ifdef _LIBCPP_DEBUG
     20 #define _LIBCPP_ASSERT(x, m) ((x) ? (void)0 : std::exit(0))
     21 #endif
     22 
     23 #include <unordered_set>
     24 #include <cassert>
     25 
     26 #include "min_allocator.h"
     27 
     28 int main()
     29 {
     30     {
     31         typedef std::unordered_set<int> C;
     32         typedef int P;
     33         const C c;
     34         assert(c.max_load_factor() == 1);
     35     }
     36     {
     37         typedef std::unordered_set<int> C;
     38         typedef int P;
     39         C c;
     40         assert(c.max_load_factor() == 1);
     41         c.max_load_factor(2.5);
     42         assert(c.max_load_factor() == 2.5);
     43     }
     44 #if __cplusplus >= 201103L
     45     {
     46         typedef std::unordered_set<int, std::hash<int>,
     47                                       std::equal_to<int>, min_allocator<int>> C;
     48         typedef int P;
     49         const C c;
     50         assert(c.max_load_factor() == 1);
     51     }
     52     {
     53         typedef std::unordered_set<int, std::hash<int>,
     54                                       std::equal_to<int>, min_allocator<int>> C;
     55         typedef int P;
     56         C c;
     57         assert(c.max_load_factor() == 1);
     58         c.max_load_factor(2.5);
     59         assert(c.max_load_factor() == 2.5);
     60     }
     61 #endif
     62 #if _LIBCPP_DEBUG_LEVEL >= 1
     63     {
     64         typedef std::unordered_set<int> C;
     65         C c;
     66         c.max_load_factor(-0.5f);
     67         assert(false);
     68     }
     69 #endif
     70 }
     71