at.pass.cpp
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//===----------------------------------------------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
// <map>
// class map
// mapped_type& at(const key_type& k);
// const mapped_type& at(const key_type& k) const;
#include <cassert>
#include <map>
#include <stdexcept>
#include "min_allocator.h"
#include "test_macros.h"
int main(int, char**)
{
{
typedef std::pair<const int, double> V;
V ar[] =
{
V(1, 1.5),
V(2, 2.5),
V(3, 3.5),
V(4, 4.5),
V(5, 5.5),
V(7, 7.5),
V(8, 8.5),
};
std::map<int, double> m(ar, ar+sizeof(ar)/sizeof(ar[0]));
assert(m.size() == 7);
assert(m.at(1) == 1.5);
m.at(1) = -1.5;
assert(m.at(1) == -1.5);
assert(m.at(2) == 2.5);
assert(m.at(3) == 3.5);
assert(m.at(4) == 4.5);
assert(m.at(5) == 5.5);
#ifndef TEST_HAS_NO_EXCEPTIONS
try
{
TEST_IGNORE_NODISCARD m.at(6);
assert(false);
}
catch (std::out_of_range&)
{
}
#endif
assert(m.at(7) == 7.5);
assert(m.at(8) == 8.5);
assert(m.size() == 7);
}
{
typedef std::pair<const int, double> V;
V ar[] =
{
V(1, 1.5),
V(2, 2.5),
V(3, 3.5),
V(4, 4.5),
V(5, 5.5),
V(7, 7.5),
V(8, 8.5),
};
const std::map<int, double> m(ar, ar+sizeof(ar)/sizeof(ar[0]));
assert(m.size() == 7);
assert(m.at(1) == 1.5);
assert(m.at(2) == 2.5);
assert(m.at(3) == 3.5);
assert(m.at(4) == 4.5);
assert(m.at(5) == 5.5);
#ifndef TEST_HAS_NO_EXCEPTIONS
try
{
TEST_IGNORE_NODISCARD m.at(6);
assert(false);
}
catch (std::out_of_range&)
{
}
#endif
assert(m.at(7) == 7.5);
assert(m.at(8) == 8.5);
assert(m.size() == 7);
}
#if TEST_STD_VER >= 11
{
typedef std::pair<const int, double> V;
V ar[] =
{
V(1, 1.5),
V(2, 2.5),
V(3, 3.5),
V(4, 4.5),
V(5, 5.5),
V(7, 7.5),
V(8, 8.5),
};
std::map<int, double, std::less<int>, min_allocator<V>> m(ar, ar+sizeof(ar)/sizeof(ar[0]));
assert(m.size() == 7);
assert(m.at(1) == 1.5);
m.at(1) = -1.5;
assert(m.at(1) == -1.5);
assert(m.at(2) == 2.5);
assert(m.at(3) == 3.5);
assert(m.at(4) == 4.5);
assert(m.at(5) == 5.5);
#ifndef TEST_HAS_NO_EXCEPTIONS
try
{
TEST_IGNORE_NODISCARD m.at(6);
assert(false);
}
catch (std::out_of_range&)
{
}
#endif
assert(m.at(7) == 7.5);
assert(m.at(8) == 8.5);
assert(m.size() == 7);
}
{
typedef std::pair<const int, double> V;
V ar[] =
{
V(1, 1.5),
V(2, 2.5),
V(3, 3.5),
V(4, 4.5),
V(5, 5.5),
V(7, 7.5),
V(8, 8.5),
};
const std::map<int, double, std::less<int>, min_allocator<V>> m(ar, ar+sizeof(ar)/sizeof(ar[0]));
assert(m.size() == 7);
assert(m.at(1) == 1.5);
assert(m.at(2) == 2.5);
assert(m.at(3) == 3.5);
assert(m.at(4) == 4.5);
assert(m.at(5) == 5.5);
#ifndef TEST_HAS_NO_EXCEPTIONS
try
{
TEST_IGNORE_NODISCARD m.at(6);
assert(false);
}
catch (std::out_of_range&)
{
}
#endif
assert(m.at(7) == 7.5);
assert(m.at(8) == 8.5);
assert(m.size() == 7);
}
#endif
return 0;
}