cxx/test/containers/unord/unord.set/bucket.pass.cpp

64 lines
1.6 KiB
C++

//===----------------------------------------------------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is dual licensed under the MIT and the University of Illinois Open
// Source Licenses. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
// <unordered_set>
// template <class Value, class Hash = hash<Value>, class Pred = equal_to<Value>,
// class Alloc = allocator<Value>>
// class unordered_set
// size_type bucket(const key_type& __k) const;
#include <unordered_set>
#include <cassert>
#include "../../min_allocator.h"
int main()
{
{
typedef std::unordered_set<int> C;
typedef int P;
P a[] =
{
P(1),
P(2),
P(3),
P(4),
P(1),
P(2)
};
const C c(std::begin(a), std::end(a));
size_t bc = c.bucket_count();
assert(bc >= 5);
for (size_t i = 0; i < 13; ++i)
assert(c.bucket(i) == i % bc);
}
#if __cplusplus >= 201103L
{
typedef std::unordered_set<int, std::hash<int>, std::equal_to<int>, min_allocator<int>> C;
typedef int P;
P a[] =
{
P(1),
P(2),
P(3),
P(4),
P(1),
P(2)
};
const C c(std::begin(a), std::end(a));
size_t bc = c.bucket_count();
assert(bc >= 5);
for (size_t i = 0; i < 13; ++i)
assert(c.bucket(i) == i % bc);
}
#endif
}