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Add result<U&, E> specialization. Fixes #72.

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This commit is contained in:
Peter Dimov
2023-09-12 03:34:24 +03:00
parent a57c568324
commit 951b3fe7b4
22 changed files with 1808 additions and 4 deletions
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test/result_copy_construct.cpp
+118
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@@ -145,6 +145,8 @@ int main()
BOOST_TEST_EQ( X::instances, 0 );
//
{
result<void> r;
result<void> r2( r );
@@ -177,5 +179,121 @@ int main()
BOOST_TEST_EQ( r, r2 );
}
//
{
int x1 = 1;
result<int&> r1( x1 );
result<int&> r2( r1 );
BOOST_TEST_EQ( r1, r2 );
BOOST_TEST_EQ( &*r2, &x1 );
}
{
int x1 = 1;
result<int&> const r1( x1 );
result<int&> r2( r1 );
BOOST_TEST_EQ( r1, r2 );
BOOST_TEST_EQ( &*r2, &x1 );
}
{
int const x1 = 1;
result<int const&> r1( x1 );
result<int const&> r2( r1 );
BOOST_TEST_EQ( r1, r2 );
BOOST_TEST_EQ( &*r2, &x1 );
}
{
int const x1 = 1;
result<int const&> const r1( x1 );
result<int const&> r2( r1 );
BOOST_TEST_EQ( r1, r2 );
BOOST_TEST_EQ( &*r2, &x1 );
}
BOOST_TEST_EQ( X::instances, 0 );
{
X x1( 1 );
result<X&> r1( x1 );
result<X&> r2( r1 );
BOOST_TEST_EQ( r1, r2 );
BOOST_TEST_EQ( &*r2, &x1 );
BOOST_TEST_EQ( X::instances, 1 );
}
BOOST_TEST_EQ( X::instances, 0 );
{
X x1( 1 );
result<X&> const r1( x1 );
result<X&> r2( r1 );
BOOST_TEST_EQ( r1, r2 );
BOOST_TEST_EQ( &*r2, &x1 );
BOOST_TEST_EQ( X::instances, 1 );
}
BOOST_TEST_EQ( X::instances, 0 );
{
X const x1( 1 );
result<X const&> r1( x1 );
result<X const&> r2( r1 );
BOOST_TEST_EQ( r1, r2 );
BOOST_TEST_EQ( &*r2, &x1 );
BOOST_TEST_EQ( X::instances, 1 );
}
BOOST_TEST_EQ( X::instances, 0 );
{
X const x1( 1 );
result<X const&> const r1( x1 );
result<X const&> r2( r1 );
BOOST_TEST_EQ( r1, r2 );
BOOST_TEST_EQ( &*r2, &x1 );
BOOST_TEST_EQ( X::instances, 1 );
}
BOOST_TEST_EQ( X::instances, 0 );
{
auto ec = make_error_code( errc::invalid_argument );
result<int&> r1( ec );
result<int&> r2( r1 );
BOOST_TEST_EQ( r1, r2 );
}
{
auto ec = make_error_code( errc::invalid_argument );
result<int&> const r1( ec );
result<int&> r2( r1 );
BOOST_TEST_EQ( r1, r2 );
}
//
return boost::report_errors();
}