1 // char TYPEDEFS
 2 using ios           = basic_ios<char, char_traits<char>>;
 3 using streambuf     = basic_streambuf<char, char_traits<char>>;
 4 using istream       = basic_istream<char, char_traits<char>>;
 5 using ostream       = basic_ostream<char, char_traits<char>>;
 6 using iostream      = basic_iostream<char, char_traits<char>>;
 7 using stringbuf     = basic_stringbuf<char, char_traits<char>, allocator<char>>;
 8 using istringstream = basic_istringstream<char, char_traits<char>, allocator<char>>;
 9 using ostringstream = basic_ostringstream<char, char_traits<char>, allocator<char>>;
10 using stringstream  = basic_stringstream<char, char_traits<char>, allocator<char>>;
11 using filebuf       = basic_filebuf<char, char_traits<char>>;
12 using ifstream      = basic_ifstream<char, char_traits<char>>;
13 using ofstream      = basic_ofstream<char, char_traits<char>>;
14 using fstream       = basic_fstream<char, char_traits<char>>;
15 
16 // wchar_t TYPEDEFS
17 using wios           = basic_ios<wchar_t, char_traits<wchar_t>>;
18 using wstreambuf     = basic_streambuf<wchar_t, char_traits<wchar_t>>;
19 using wistream       = basic_istream<wchar_t, char_traits<wchar_t>>;
20 using wostream       = basic_ostream<wchar_t, char_traits<wchar_t>>;
21 using wiostream      = basic_iostream<wchar_t, char_traits<wchar_t>>;
22 using wstringbuf     = basic_stringbuf<wchar_t, char_traits<wchar_t>, allocator<wchar_t>>;
23 using wistringstream = basic_istringstream<wchar_t, char_traits<wchar_t>, allocator<wchar_t>>;
24 using wostringstream = basic_ostringstream<wchar_t, char_traits<wchar_t>, allocator<wchar_t>>;
25 using wstringstream  = basic_stringstream<wchar_t, char_traits<wchar_t>, allocator<wchar_t>>;
26 using wfilebuf       = basic_filebuf<wchar_t, char_traits<wchar_t>>;
27 using wifstream      = basic_ifstream<wchar_t, char_traits<wchar_t>>;
28 using wofstream      = basic_ofstream<wchar_t, char_traits<wchar_t>>;
29 using wfstream       = basic_fstream<wchar_t, char_traits<wchar_t>>;
原文地址:https://www.cnblogs.com/sunbines/p/14284465.html