51   using StrStream = std::basic_istringstream<CharT, TraitsT, AllocT>;  in test_sfinae()  typedef
54   static_assert(std::constructible_from<StrStream, CharT*, AllocT>);  in test_sfinae()
55   static_assert(test_convertible<StrStream, CharT*, std::ios_base::openmode, const AllocT>());  in test_sfinae()
58   static_assert(std::constructible_from<StrStream, const CharT*, AllocT>);  in test_sfinae()
59   static_assert(test_convertible<StrStream, const CharT*, std::ios_base::openmode, const AllocT>());  in test_sfinae()
62   static_assert(std::constructible_from<StrStream,  in test_sfinae()
66   static_assert(test_convertible<StrStream,  in test_sfinae()
72   static_assert(std::constructible_from<StrStream,  in test_sfinae()
77 …test_convertible<StrStream, const std::basic_string<CharT, TraitsT>, std::ios_base::openmode, cons…  in test_sfinae()
80   static_assert(std::constructible_from<StrStream,  in test_sfinae()
84   static_assert(test_convertible<StrStream,  in test_sfinae()
90   static_assert(!std::constructible_from<StrStream,  in test_sfinae()
94   static_assert(!test_convertible<StrStream,  in test_sfinae()
99   static_assert(!std::constructible_from<StrStream,  in test_sfinae()
103   static_assert(!test_convertible<StrStream,  in test_sfinae()
109 …static_assert(!std::constructible_from<StrStream, const SomeObject, std::ios_base::openmode, const…  in test_sfinae()
110 …static_assert(!test_convertible<StrStream, const SomeObject, std::ios_base::openmode, const AllocT…  in test_sfinae()
112 …static_assert(!std::constructible_from<StrStream, const int, std::ios_base::openmode, const AllocT…  in test_sfinae()
113   static_assert(!test_convertible<StrStream, const int, std::ios_base::openmode, const AllocT>());  in test_sfinae()
117 …!std::constructible_from<StrStream, const std::basic_string_view<CharT, TraitsT>, NonMode, const N…  in test_sfinae()
119 …!test_convertible<StrStream, const std::basic_string_view<CharT, TraitsT>, NonMode, const NonAlloc…  in test_sfinae()
122   static_assert(!std::constructible_from<StrStream,  in test_sfinae()
126   static_assert(!test_convertible<StrStream,  in test_sfinae()
134   using StrStream = std::basic_istringstream<CharT, TraitsT, AllocT>;  in test()  typedef
140     StrStream ss(CS("zmt"), std::ios_base::binary, allocator);  in test()
147     StrStream ss(csv, std::ios_base::binary, allocator);  in test()
154     StrStream ss(cs, std::ios_base::binary, allocator);  in test()
161     StrStream ss(sv, std::ios_base::binary, allocator);  in test()