18 ErrorOr<int> t1() { return 1; }  in t1()
19 ErrorOr<int> t2() { return errc::invalid_argument; }  in t2()
21 TEST(ErrorOr, SimpleValue) {  in TEST()  argument
22   ErrorOr<int> a = t1();  in TEST()
28   ErrorOr<int> b = a;  in TEST()
39 ErrorOr<std::unique_ptr<int> > t3() {  in t3()
43 TEST(ErrorOr, Types) {  in TEST()  argument
45   ErrorOr<int&> a(x);  in TEST()
56 TEST(ErrorOr, Covariant) {  in TEST()  argument
57   ErrorOr<B*> b(ErrorOr<D*>(nullptr));  in TEST()
58   b = ErrorOr<D*>(nullptr);  in TEST()
60   ErrorOr<std::unique_ptr<B> > b1(ErrorOr<std::unique_ptr<D> >(nullptr));  in TEST()
61   b1 = ErrorOr<std::unique_ptr<D> >(nullptr);  in TEST()
63   ErrorOr<std::unique_ptr<int>> b2(ErrorOr<int *>(nullptr));  in TEST()
64   ErrorOr<int *> b3(nullptr);  in TEST()
65   ErrorOr<std::unique_ptr<int>> b4(b3);  in TEST()
68 TEST(ErrorOr, Comparison) {  in TEST()  argument
69   ErrorOr<int> x(errc::no_such_file_or_directory);  in TEST()
73 TEST(ErrorOr, ImplicitConversion) {  in TEST()  argument
74   ErrorOr<std::string> x("string literal");  in TEST()
78 TEST(ErrorOr, ImplicitConversionCausesMove) {  in TEST()  argument
85   ErrorOr<Destination> x = s;  in TEST()
89 TEST(ErrorOr, ImplicitConversionNoAmbiguity) {  in TEST()  argument
95   ErrorOr<CastsToErrorCode> x1(casts_to_error_code);  in TEST()
96   ErrorOr<CastsToErrorCode> x2 = casts_to_error_code;  in TEST()
97   ErrorOr<CastsToErrorCode> x3 = {casts_to_error_code};  in TEST()
98   ErrorOr<CastsToErrorCode> x4{casts_to_error_code};  in TEST()
99   ErrorOr<CastsToErrorCode> x5(errc::no_such_file_or_directory);  in TEST()
100   ErrorOr<CastsToErrorCode> x6 = errc::no_such_file_or_directory;  in TEST()
101   ErrorOr<CastsToErrorCode> x7 = {errc::no_such_file_or_directory};  in TEST()
102   ErrorOr<CastsToErrorCode> x8{errc::no_such_file_or_directory};  in TEST()
116     !std::is_convertible<const ErrorOr<int *> &,
117                          ErrorOr<std::unique_ptr<int>>>::value,
123     !std::is_convertible<ErrorOr<int *> &&,
124                          ErrorOr<std::unique_ptr<int>>>::value,
130 static_assert(!std::is_assignable<ErrorOr<std::unique_ptr<int>>&,
131                                   const ErrorOr<int *> &>::value,
136 static_assert(!std::is_assignable<ErrorOr<std::unique_ptr<int>>&,
137                                   ErrorOr<int *> &&>::value,