77 lines
1.8 KiB
C++
77 lines
1.8 KiB
C++
//===----------------------------------------------------------------------===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is dual licensed under the MIT and the University of Illinois Open
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// Source Licenses. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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// <unordered_set>
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// template <class Value, class Hash = hash<Value>, class Pred = equal_to<Value>,
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// class Alloc = allocator<Value>>
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// class unordered_set
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// size_type bucket(const key_type& __k) const;
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#ifdef _LIBCPP_DEBUG
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#define _LIBCPP_ASSERT(x, m) ((x) ? (void)0 : std::exit(0))
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#endif
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#include <unordered_set>
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#include <cassert>
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#include "test_macros.h"
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#include "min_allocator.h"
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int main()
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{
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{
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typedef std::unordered_set<int> C;
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typedef int P;
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P a[] =
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{
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P(1),
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P(2),
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P(3),
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P(4),
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P(1),
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P(2)
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};
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const C c(std::begin(a), std::end(a));
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size_t bc = c.bucket_count();
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assert(bc >= 5);
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for (size_t i = 0; i < 13; ++i)
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LIBCPP_ASSERT(c.bucket(i) == i % bc);
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}
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#if TEST_STD_VER >= 11
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{
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typedef std::unordered_set<int, std::hash<int>, std::equal_to<int>, min_allocator<int>> C;
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typedef int P;
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P a[] =
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{
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P(1),
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P(2),
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P(3),
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P(4),
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P(1),
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P(2)
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};
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const C c(std::begin(a), std::end(a));
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size_t bc = c.bucket_count();
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assert(bc >= 5);
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for (size_t i = 0; i < 13; ++i)
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LIBCPP_ASSERT(c.bucket(i) == i % bc);
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}
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#endif
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#if _LIBCPP_DEBUG_LEVEL >= 1
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{
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typedef std::unordered_set<int> C;
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C c;
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C::size_type i = c.bucket(3);
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assert(false);
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}
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#endif
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}
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