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Revert Add <optional>. Will recommit with better commit message

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git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@283978 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Eric Fiselier
2016-10-12 06:48:31 +00:00
parent fbc80168bb
commit ead5d404cc
86 changed files with 55 additions and 8467 deletions
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237
test/std/utilities/optional/optional.object/optional.object.assign/emplace.pass.cpp
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@@ -1,237 +0,0 @@
//===----------------------------------------------------------------------===//
//
// 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.
//
//===----------------------------------------------------------------------===//
// UNSUPPORTED: c++98, c++03, c++11, c++14
// <optional>
// template <class... Args> void optional<T>::emplace(Args&&... args);
#include <optional>
#include <type_traits>
#include <cassert>
#include <memory>
#include "test_macros.h"
#include "archetypes.hpp"
using std::optional;
class X
{
int i_;
int j_ = 0;
public:
X() : i_(0) {}
X(int i) : i_(i) {}
X(int i, int j) : i_(i), j_(j) {}
friend bool operator==(const X& x, const X& y)
{return x.i_ == y.i_ && x.j_ == y.j_;}
};
class Y
{
public:
static bool dtor_called;
Y() = default;
Y(int) { TEST_THROW(6);}
~Y() {dtor_called = true;}
};
bool Y::dtor_called = false;
template <class T>
void test_one_arg() {
using Opt = std::optional<T>;
{
Opt opt;
opt.emplace();
assert(static_cast<bool>(opt) == true);
assert(*opt == T(0));
}
{
Opt opt;
opt.emplace(1);
assert(static_cast<bool>(opt) == true);
assert(*opt == T(1));
}
{
Opt opt(2);
opt.emplace();
assert(static_cast<bool>(opt) == true);
assert(*opt == T(0));
}
{
Opt opt(2);
opt.emplace(1);
assert(static_cast<bool>(opt) == true);
assert(*opt == T(1));
}
}
template <class T>
void test_multi_arg()
{
test_one_arg<T>();
using Opt = std::optional<T>;
Opt opt;
{
opt.emplace(101, 41);
assert(static_cast<bool>(opt) == true);
assert(*opt == T(101, 41));
}
{
Opt opt;
opt.emplace({1, 2, 3, 4});
assert(static_cast<bool>(opt) == true);
assert(*opt == T(4)); // T sets its value to the size of the init list
}
{
Opt opt;
opt.emplace({1, 2, 3, 4, 5}, 6);
assert(static_cast<bool>(opt) == true);
assert(*opt == T(5)); // T sets its value to the size of the init list
}
}
template <class T>
void test_on_test_type() {
T::reset();
optional<T> opt;
assert(T::alive == 0);
{
T::reset_constructors();
opt.emplace();
assert(T::alive == 1);
assert(T::constructed == 1);
assert(T::default_constructed == 1);
assert(T::destroyed == 0);
assert(static_cast<bool>(opt) == true);
assert(*opt == T());
}
{
T::reset_constructors();
opt.emplace();
assert(T::alive == 1);
assert(T::constructed == 1);
assert(T::default_constructed == 1);
assert(T::destroyed == 1);
assert(static_cast<bool>(opt) == true);
assert(*opt == T());
}
{
T::reset_constructors();
opt.emplace(101);
assert(T::alive == 1);
assert(T::constructed == 1);
assert(T::value_constructed == 1);
assert(T::destroyed == 1);
assert(static_cast<bool>(opt) == true);
assert(*opt == T(101));
}
{
T::reset_constructors();
opt.emplace(-10, 99);
assert(T::alive == 1);
assert(T::constructed == 1);
assert(T::value_constructed == 1);
assert(T::destroyed == 1);
assert(static_cast<bool>(opt) == true);
assert(*opt == T(-10, 99));
}
{
T::reset_constructors();
opt.emplace(-10, 99);
assert(T::alive == 1);
assert(T::constructed == 1);
assert(T::value_constructed == 1);
assert(T::destroyed == 1);
assert(static_cast<bool>(opt) == true);
assert(*opt == T(-10, 99));
}
{
T::reset_constructors();
opt.emplace({-10, 99, 42, 1});
assert(T::alive == 1);
assert(T::constructed == 1);
assert(T::value_constructed == 1);
assert(T::destroyed == 1);
assert(static_cast<bool>(opt) == true);
assert(*opt == T(4)); // size of the initializer list
}
{
T::reset_constructors();
opt.emplace({-10, 99, 42, 1}, 42);
assert(T::alive == 1);
assert(T::constructed == 1);
assert(T::value_constructed == 1);
assert(T::destroyed == 1);
assert(static_cast<bool>(opt) == true);
assert(*opt == T(4)); // size of the initializer list
}
}
int main()
{
{
test_on_test_type<TestTypes::TestType>();
test_on_test_type<ExplicitTestTypes::TestType>();
}
{
using T = int;
test_one_arg<T>();
test_one_arg<const T>();
}
{
using T = ConstexprTestTypes::TestType;
test_multi_arg<T>();
}
{
using T = ExplicitConstexprTestTypes::TestType;
test_multi_arg<T>();
}
{
using T = TrivialTestTypes::TestType;
test_multi_arg<T>();
}
{
using T = ExplicitTrivialTestTypes::TestType;
test_multi_arg<T>();
}
{
optional<const int> opt;
opt.emplace(42);
assert(*opt == 42);
opt.emplace();
assert(*opt == 0);
}
#ifndef TEST_HAS_NO_EXCEPTIONS
Y::dtor_called = false;
{
Y y;
optional<Y> opt(y);
try
{
assert(static_cast<bool>(opt) == true);
assert(Y::dtor_called == false);
opt.emplace(1);
}
catch (int i)
{
assert(i == 6);
assert(static_cast<bool>(opt) == false);
assert(Y::dtor_called == true);
}
}
#endif
}