1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
|
// MPark.Variant
//
// Copyright Michael Park, 2015-2017
//
// Distributed under the Boost Software License, Version 1.0.
// (See accompanying file LICENSE.md or copy at http://boost.org/LICENSE_1_0.txt)
#include <mpark/variant.hpp>
#include <string>
#include <gtest/gtest.h>
#include "util.hpp"
namespace lib = mpark::lib;
TEST(Ctor_Move, Value) {
// `v`
mpark::variant<int, std::string> v("hello");
EXPECT_EQ("hello", mpark::get<std::string>(v));
// `w`
mpark::variant<int, std::string> w(lib::move(v));
EXPECT_EQ("hello", mpark::get<std::string>(w));
// Check `v`
EXPECT_TRUE(mpark::get<std::string>(v).empty());
/* constexpr */ {
// `cv`
constexpr mpark::variant<int, const char *> cv(42);
static_assert(42 == mpark::get<int>(cv), "");
// `cw`
constexpr mpark::variant<int, const char *> cw(lib::move(cv));
static_assert(42 == mpark::get<int>(cw), "");
}
}
#ifdef MPARK_EXCEPTIONS
TEST(Ctor_Move, ValuelessByException) {
mpark::variant<int, move_thrower_t> v(42);
EXPECT_THROW(v = move_thrower_t{}, MoveConstruction);
EXPECT_TRUE(v.valueless_by_exception());
mpark::variant<int, move_thrower_t> w(lib::move(v));
EXPECT_TRUE(w.valueless_by_exception());
}
#endif
|
