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added in_place constructors

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This commit is contained in:
Andrzej Krzemienski
2016-10-27 01:08:17 +02:00
parent a710a23102
commit eb9ea1f72d
2 changed files with 406 additions and 25 deletions
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185
test/optional_test_emplace.cpp
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@ -23,6 +23,8 @@
using boost::optional;
using boost::none;
using boost::in_place_init;
using boost::in_place_init_if;
#if (!defined BOOST_OPTIONAL_DETAIL_NO_RVALUE_REFERENCES) && (!defined BOOST_NO_CXX11_VARIADIC_TEMPLATES)
@ -87,6 +89,109 @@ void test_emplace()
BOOST_TEST(7 == o->which_ctor);
}
void test_in_place_ctor()
{
int i = 0;
double d = 0.0;
const std::string cs;
std::string ms;
{
optional<Guard> o (in_place_init);
BOOST_TEST(o);
BOOST_TEST(0 == o->which_ctor);
}
{
optional<Guard> o (in_place_init, i, 2.0);
BOOST_TEST(o);
BOOST_TEST(1 == o->which_ctor);
}
{
optional<Guard> o (in_place_init, 1, d);
BOOST_TEST(o);
BOOST_TEST(2 == o->which_ctor);
}
{
optional<Guard> o (in_place_init, 1, 2.0);
BOOST_TEST(o);
BOOST_TEST(3 == o->which_ctor);
}
{
optional<Guard> o (in_place_init, i, d);
BOOST_TEST(o);
BOOST_TEST(4 == o->which_ctor);
}
{
optional<Guard> o (in_place_init, cs);
BOOST_TEST(o);
BOOST_TEST(5 == o->which_ctor);
}
{
optional<Guard> o (in_place_init, ms);
BOOST_TEST(o);
BOOST_TEST(6 == o->which_ctor);
}
{
optional<Guard> o (in_place_init, std::string());
BOOST_TEST(o);
BOOST_TEST(7 == o->which_ctor);
}
}
void test_in_place_if_ctor()
{
int i = 0;
double d = 0.0;
const std::string cs;
std::string ms;
{
optional<Guard> o (in_place_init_if, true);
BOOST_TEST(o);
BOOST_TEST(0 == o->which_ctor);
}
{
optional<Guard> o (in_place_init_if, true, i, 2.0);
BOOST_TEST(o);
BOOST_TEST(1 == o->which_ctor);
}
{
optional<Guard> o (in_place_init_if, true, 1, d);
BOOST_TEST(o);
BOOST_TEST(2 == o->which_ctor);
}
{
optional<Guard> o (in_place_init_if, true, 1, 2.0);
BOOST_TEST(o);
BOOST_TEST(3 == o->which_ctor);
}
{
optional<Guard> o (in_place_init_if, true, i, d);
BOOST_TEST(o);
BOOST_TEST(4 == o->which_ctor);
}
{
optional<Guard> o (in_place_init_if, true, cs);
BOOST_TEST(o);
BOOST_TEST(5 == o->which_ctor);
}
{
optional<Guard> o (in_place_init_if, true, ms);
BOOST_TEST(o);
BOOST_TEST(6 == o->which_ctor);
}
{
optional<Guard> o (in_place_init_if, true, std::string());
BOOST_TEST(o);
BOOST_TEST(7 == o->which_ctor);
}
{
optional<Guard> o (in_place_init_if, false, 1, 2.0);
BOOST_TEST(!o);
}
}
#endif
@ -112,6 +217,24 @@ void test_no_moves_on_emplacement()
BOOST_TEST(false);
}
}
void test_no_moves_on_in_place_ctor()
{
try {
optional<ThrowOnMove> o (in_place_init, 1);
BOOST_TEST(o);
optional<ThrowOnMove> p (in_place_init_if, true, 1);
BOOST_TEST(p);
optional<ThrowOnMove> q (in_place_init_if, false, 1);
BOOST_TEST(!q);
}
catch (...) {
BOOST_TEST(false);
}
}
#endif
struct Thrower
@ -158,6 +281,7 @@ void test_no_assignment_on_emplacement()
}
namespace no_rvalue_refs {
class Guard
{
public:
@ -188,19 +312,78 @@ void test_emplace()
BOOST_TEST(o);
BOOST_TEST(6 == o->which_ctor);
}
}
void test_in_place_ctor()
{
const std::string cs;
std::string ms;
{
optional<Guard> o (in_place_init);
BOOST_TEST(o);
BOOST_TEST(0 == o->which_ctor);
}
{
optional<Guard> o (in_place_init, cs);
BOOST_TEST(o);
BOOST_TEST(5 == o->which_ctor);
}
{
optional<Guard> o (in_place_init, ms);
BOOST_TEST(o);
BOOST_TEST(6 == o->which_ctor);
}
}
void test_in_place_if_ctor()
{
const std::string cs;
std::string ms;
{
optional<Guard> n (in_place_init_if, false);
BOOST_TEST(!n);
optional<Guard> o (in_place_init_if, true);
BOOST_TEST(o);
BOOST_TEST(0 == o->which_ctor);
}
{
optional<Guard> n (in_place_init_if, false, cs);
BOOST_TEST(!n);
optional<Guard> o (in_place_init_if, true, cs);
BOOST_TEST(o);
BOOST_TEST(5 == o->which_ctor);
}
{
optional<Guard> n (in_place_init_if, false, ms);
BOOST_TEST(!n);
optional<Guard> o (in_place_init_if, true, ms);
BOOST_TEST(o);
BOOST_TEST(6 == o->which_ctor);
}
}
} // namespace no_rvalue_ref
int main()
{
#if (!defined BOOST_OPTIONAL_DETAIL_NO_RVALUE_REFERENCES) && (!defined BOOST_NO_CXX11_VARIADIC_TEMPLATES)
test_emplace();
test_in_place_ctor();
test_in_place_if_ctor();
#endif
#if (!defined BOOST_OPTIONAL_DETAIL_NO_RVALUE_REFERENCES)
test_no_moves_on_emplacement();
test_no_moves_on_in_place_ctor();
#endif
test_clear_on_throw();
test_no_assignment_on_emplacement();
no_rvalue_refs::test_emplace();
no_rvalue_refs::test_in_place_ctor();
no_rvalue_refs::test_in_place_if_ctor();
return boost::report_errors();
}