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libcxx/test/std/containers/associative/set/max_size.pass.cpp

51 lines
1.3 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.
//
//===----------------------------------------------------------------------===//
// <set>
// class set
// size_type max_size() const;
#include <cassert>
#include <limits>
#include <set>
#include <type_traits>
#include "test_allocator.h"
#include "test_macros.h"
int main()
{
{
typedef limited_allocator<int, 10> A;
typedef std::set<int, std::less<int>, A> C;
C c;
assert(c.max_size() <= 10);
LIBCPP_ASSERT(c.max_size() == 10);
}
{
typedef limited_allocator<int, (size_t)-1> A;
typedef std::set<int, std::less<int>, A> C;
const C::size_type max_dist =
static_cast<C::size_type>(std::numeric_limits<C::difference_type>::max());
C c;
assert(c.max_size() <= max_dist);
LIBCPP_ASSERT(c.max_size() == max_dist);
}
{
typedef std::set<char> C;
const C::size_type max_dist =
static_cast<C::size_type>(std::numeric_limits<C::difference_type>::max());
C c;
assert(c.max_size() <= max_dist);
assert(c.max_size() <= alloc_max_size(c.get_allocator()));
}
}