45     static_assert((std::is_same<decltype(std::fwprintf(fp, L"")), int>::value), "");  in main()
46     static_assert((std::is_same<decltype(std::fwscanf(fp, L"")), int>::value), "");  in main()
47     static_assert((std::is_same<decltype(std::swprintf(ws, s, L"")), int>::value), "");  in main()
48     static_assert((std::is_same<decltype(std::swscanf(L"", L"")), int>::value), "");  in main()
49     static_assert((std::is_same<decltype(std::vfwprintf(fp, L"", va)), int>::value), "");  in main()
50     static_assert((std::is_same<decltype(std::vfwscanf(fp, L"", va)), int>::value), "");  in main()
51     static_assert((std::is_same<decltype(std::vswprintf(ws, s, L"", va)), int>::value), "");  in main()
52     static_assert((std::is_same<decltype(std::vswscanf(L"", L"", va)), int>::value), "");  in main()
53     static_assert((std::is_same<decltype(std::vwprintf(L"", va)), int>::value), "");  in main()
54     static_assert((std::is_same<decltype(std::vwscanf(L"", va)), int>::value), "");  in main()
55     static_assert((std::is_same<decltype(std::wprintf(L"")), int>::value), "");  in main()
56     static_assert((std::is_same<decltype(std::wscanf(L"")), int>::value), "");  in main()
57     static_assert((std::is_same<decltype(std::fgetwc(fp)), std::wint_t>::value), "");  in main()
58     static_assert((std::is_same<decltype(std::fgetws(ws, 0, fp)), wchar_t*>::value), "");  in main()
59     static_assert((std::is_same<decltype(std::fputwc(L' ', fp)), std::wint_t>::value), "");  in main()
60     static_assert((std::is_same<decltype(std::fputws(L"", fp)), int>::value), "");  in main()
61     static_assert((std::is_same<decltype(std::fwide(fp, 0)), int>::value), "");  in main()
62     static_assert((std::is_same<decltype(std::getwc(fp)), std::wint_t>::value), "");  in main()
63     static_assert((std::is_same<decltype(std::getwchar()), std::wint_t>::value), "");  in main()
64     static_assert((std::is_same<decltype(std::putwc(L' ', fp)), std::wint_t>::value), "");  in main()
65     static_assert((std::is_same<decltype(std::putwchar(L' ')), std::wint_t>::value), "");  in main()
66     static_assert((std::is_same<decltype(std::ungetwc(L' ', fp)), std::wint_t>::value), "");  in main()
67     static_assert((std::is_same<decltype(std::wcstod(L"", (wchar_t**)0)), double>::value), "");  in main()
68     static_assert((std::is_same<decltype(std::wcstof(L"", (wchar_t**)0)), float>::value), "");  in main()
69 …  static_assert((std::is_same<decltype(std::wcstold(L"", (wchar_t**)0)), long double>::value), "");  in main()
70     static_assert((std::is_same<decltype(std::wcstol(L"", (wchar_t**)0, 0)), long>::value), "");  in main()
71 … static_assert((std::is_same<decltype(std::wcstoll(L"", (wchar_t**)0, 0)), long long>::value), "");  in main()
72 …static_assert((std::is_same<decltype(std::wcstoul(L"", (wchar_t**)0, 0)), unsigned long>::value), …  in main()
73 …static_assert((std::is_same<decltype(std::wcstoull(L"", (wchar_t**)0, 0)), unsigned long long>::va…  in main()
74     static_assert((std::is_same<decltype(std::wcscpy(ws, L"")), wchar_t*>::value), "");  in main()
75     static_assert((std::is_same<decltype(std::wcsncpy(ws, L"", s)), wchar_t*>::value), "");  in main()
76     static_assert((std::is_same<decltype(std::wcscat(ws, L"")), wchar_t*>::value), "");  in main()
77     static_assert((std::is_same<decltype(std::wcsncat(ws, L"", s)), wchar_t*>::value), "");  in main()
78     static_assert((std::is_same<decltype(std::wcscmp(L"", L"")), int>::value), "");  in main()
79     static_assert((std::is_same<decltype(std::wcscoll(L"", L"")), int>::value), "");  in main()
80     static_assert((std::is_same<decltype(std::wcsncmp(L"", L"", s)), int>::value), "");  in main()
81     static_assert((std::is_same<decltype(std::wcsxfrm(ws, L"", s)), std::size_t>::value), "");  in main()
82 …static_assert((std::is_same<decltype(std::wcschr((const wchar_t*)0, L' ')), const wchar_t*>::value…  in main()
83     static_assert((std::is_same<decltype(std::wcschr((wchar_t*)0, L' ')), wchar_t*>::value), "");  in main()
84     static_assert((std::is_same<decltype(std::wcscspn(L"", L"")), std::size_t>::value), "");  in main()
85     static_assert((std::is_same<decltype(std::wcslen(L"")), std::size_t>::value), "");  in main()
86 …static_assert((std::is_same<decltype(std::wcspbrk((const wchar_t*)0, L"")), const wchar_t*>::value…  in main()
87     static_assert((std::is_same<decltype(std::wcspbrk((wchar_t*)0, L"")), wchar_t*>::value), "");  in main()
88 …static_assert((std::is_same<decltype(std::wcsrchr((const wchar_t*)0, L' ')), const wchar_t*>::valu…  in main()
89     static_assert((std::is_same<decltype(std::wcsrchr((wchar_t*)0, L' ')), wchar_t*>::value), "");  in main()
90     static_assert((std::is_same<decltype(std::wcsspn(L"", L"")), std::size_t>::value), "");  in main()
91 …static_assert((std::is_same<decltype(std::wcsstr((const wchar_t*)0, L"")), const wchar_t*>::value)…  in main()
92     static_assert((std::is_same<decltype(std::wcsstr((wchar_t*)0, L"")), wchar_t*>::value), "");  in main()
93 …  static_assert((std::is_same<decltype(std::wcstok(ws, L"", (wchar_t**)0)), wchar_t*>::value), "");  in main()
94 …static_assert((std::is_same<decltype(std::wmemchr((const wchar_t*)0, L' ', s)), const wchar_t*>::v…  in main()
95 …  static_assert((std::is_same<decltype(std::wmemchr((wchar_t*)0, L' ', s)), wchar_t*>::value), "");  in main()
96     static_assert((std::is_same<decltype(std::wmemcmp(L"", L"", s)), int>::value), "");  in main()
97     static_assert((std::is_same<decltype(std::wmemcpy(ws, L"", s)), wchar_t*>::value), "");  in main()
98     static_assert((std::is_same<decltype(std::wmemmove(ws, L"", s)), wchar_t*>::value), "");  in main()
99     static_assert((std::is_same<decltype(std::wmemset(ws, L' ', s)), wchar_t*>::value), "");  in main()
100     static_assert((std::is_same<decltype(std::wcsftime(ws, s, L"", tm)), std::size_t>::value), "");  in main()
101     static_assert((std::is_same<decltype(std::btowc(0)), wint_t>::value), "");  in main()
102     static_assert((std::is_same<decltype(std::wctob(w)), int>::value), "");  in main()
103     static_assert((std::is_same<decltype(std::mbsinit(&mb)), int>::value), "");  in main()
104     static_assert((std::is_same<decltype(std::mbrlen("", s, &mb)), std::size_t>::value), "");  in main()
105     static_assert((std::is_same<decltype(std::mbrtowc(ws, "", s, &mb)), std::size_t>::value), "");  in main()
106     static_assert((std::is_same<decltype(std::wcrtomb(ns, L' ', &mb)), std::size_t>::value), "");  in main()
107 …static_assert((std::is_same<decltype(std::mbsrtowcs(ws, (const char**)0, s, &mb)), std::size_t>::v…  in main()
108 …static_assert((std::is_same<decltype(std::wcsrtombs(ns, (const wchar_t**)0, s, &mb)), std::size_t>…  in main()