3 // Heavily inspired by /usr/include/c++/4.1/bits
5 // Copyright (C) 2001, 2002 Free Software Foundation, Inc.
7 // This file is part of the GNU ISO C++ Library. This library is free
8 // software; you can redistribute it and/or modify it under the
9 // terms of the GNU General Public License as published by the
10 // Free Software Foundation; either version 2, or (at your option)
18 // Prefer this if possible because GNU libstdc++ has usable
19 // std::ctype<wchar_t> locale facets but not
20 // std::ctype<boost::uint32_t>. gcc older than 3.4 is also missing
21 // usable std::char_traits<boost::uint32_t>.
22 namespace lyx { typedef wchar_t char_type; }
26 #include <boost/cstdint.hpp>
27 namespace lyx { typedef boost::uint32_t char_type; }
31 // Forward definitions do not work with libc++
32 // For gcc5 with the new std::string ABI forward declarations would work in
33 // principle, but I am not sure whether we want non-standard
34 // "namespace __cxx11" in our sources.
35 #if defined(USE_LLVM_LIBCPP) || defined(USE_GLIBCXX_CXX11_ABI)
41 template<typename Alloc> class allocator;
43 template<typename Char> struct char_traits;
44 template<> struct char_traits<char>;
46 template<> struct char_traits<wchar_t>;
49 template<typename Char, typename Traits, typename Alloc> class basic_string;
50 typedef basic_string<char, char_traits<char>, allocator<char> > string;
52 template<class Char, class Traits> class basic_istream;
53 template<class Char, class Traits> class basic_ostream;
54 template<class Char, class Traits, class Allocator> class basic_ostringstream;
56 typedef basic_istream<char, char_traits<char> > istream;
57 typedef basic_ostream<char, char_traits<char> > ostream;
58 typedef basic_ostringstream<char, char_traits<char>, allocator<char> > ostringstream;
67 * String type for storing the main text in UCS4 encoding.
68 * Use std::string only in cases 7-bit ASCII is to be manipulated
69 * within the variable.
71 typedef std::basic_string<char_type, std::char_traits<char_type>,
72 std::allocator<char_type> > docstring;
74 /// Base class for UCS4 input streams
75 typedef std::basic_istream<char_type, std::char_traits<char_type> > idocstream;
77 /// Base class for UCS4 output streams
78 typedef std::basic_ostream<char_type, std::char_traits<char_type> > odocstream;
80 /// UCS4 output stringstream
81 typedef std::basic_ostringstream<char_type, std::char_traits<char_type>, std::allocator<char_type> > odocstringstream;
83 #if ! defined(USE_WCHAR_T)
84 extern odocstream & operator<<(odocstream &, char);
87 // defined in lstrings.cpp
88 docstring const & empty_docstring();
89 std::string const & empty_string();
90 // defined in docstring.cpp
91 bool operator==(docstring const &, char const *);
93 #ifdef STD_STRING_USES_COW
94 template<typename Char> class trivial_string;
95 typedef trivial_string<char> trivstring;
96 typedef trivial_string<char_type> trivdocstring;
98 typedef std::string trivstring;
99 typedef docstring trivdocstring;