1 // Components for manipulating sequences of characters -*- C++ -*-
2 
3 // Copyright (C) 1997-2021 Free Software Foundation, Inc.
4 //
5 // This file is part of the GNU ISO C++ Library.  This library is free
6 // software; you can redistribute it and/or modify it under the
7 // terms of the GNU General Public License as published by the
8 // Free Software Foundation; either version 3, or (at your option)
9 // any later version.
10 
11 // This library is distributed in the hope that it will be useful,
12 // but WITHOUT ANY WARRANTY; without even the implied warranty of
13 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
14 // GNU General Public License for more details.
15 
16 // Under Section 7 of GPL version 3, you are granted additional
17 // permissions described in the GCC Runtime Library Exception, version
18 // 3.1, as published by the Free Software Foundation.
19 
20 // You should have received a copy of the GNU General Public License and
21 // a copy of the GCC Runtime Library Exception along with this program;
22 // see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
23 // <http://www.gnu.org/licenses/>.
24 
25 //
26 // ISO C++ 14882: 21  Strings library
27 //
28 
29 // Written by Jason Merrill based upon the specification by Takanori Adachi
30 // in ANSI X3J16/94-0013R2.  Rewritten by Nathan Myers.
31 
32 #ifndef _GLIBCXX_USE_CXX11_ABI
33 // Instantiations in this file use the new SSO std::string ABI unless included
34 // by another file which defines _GLIBCXX_USE_CXX11_ABI=0.
35 # define _GLIBCXX_USE_CXX11_ABI 1
36 #endif
37 
38 // Prevent the basic_string(const _CharT*, const _Alloc&) and
39 // basic_string(size_type, _CharT, const _Alloc&) constructors from being
40 // replaced by constrained function templates, so that we instantiate the
41 // pre-C++17 definitions.
42 // This also causes the instantiation of the non-standard C++0x-era
43 // insert(iterator, initializer_list<C>) overload, see PR libstdc++/83328
44 #define _GLIBCXX_DEFINING_STRING_INSTANTIATIONS 1
45 
46 #include <string>
47 
48 // Instantiation configuration.
49 #ifndef C
50 # define C char
51 #endif
52 
53 namespace std _GLIBCXX_VISIBILITY(default)
54 {
55 _GLIBCXX_BEGIN_NAMESPACE_VERSION
56 
57   typedef basic_string<C> S;
58 
59   template class basic_string<C>;
60   template S operator+(const C*, const S&);
61   template S operator+(C, const S&);
62   template S operator+(const S&, const S&);
63 
64   // Only one template keyword allowed here.
65   // See core issue #46 (NAD)
66   // http://www.open-std.org/jtc1/sc22/wg21/docs/cwg_closed.html#46
67   template
68     S::basic_string(C*, C*, const allocator<C>&);
69 
70   template
71     S::basic_string(const C*, const C*, const allocator<C>&);
72 
73   template
74     S::basic_string(S::iterator, S::iterator, const allocator<C>&);
75 
76 #if _GLIBCXX_USE_CXX11_ABI
77   template
78     void
79     S::_M_construct(S::iterator, S::iterator, forward_iterator_tag);
80 
81   template
82     void
83     S::_M_construct(S::const_iterator, S::const_iterator,
84 		    forward_iterator_tag);
85 
86   template
87     void
88     S::_M_construct(C*, C*, forward_iterator_tag);
89 
90   template
91     void
92     S::_M_construct(const C*, const C*, forward_iterator_tag);
93 
94 #else // !_GLIBCXX_USE_CXX11_ABI
95 
96   template
97     C*
98     S::_S_construct(S::iterator, S::iterator,
99 		    const allocator<C>&, forward_iterator_tag);
100 
101   template
102     C*
103     S::_S_construct(C*, C*, const allocator<C>&, forward_iterator_tag);
104 
105   template
106     C*
107     S::_S_construct(const C*, const C*, const allocator<C>&,
108 		    forward_iterator_tag);
109 #endif
110 
111 _GLIBCXX_END_NAMESPACE_VERSION
112 } // namespace
113 
114 namespace __gnu_cxx _GLIBCXX_VISIBILITY(default)
115 {
116 _GLIBCXX_BEGIN_NAMESPACE_VERSION
117 
118   using std::S;
119   template bool operator==(const S::iterator&, const S::iterator&);
120   template bool operator==(const S::const_iterator&, const S::const_iterator&);
121 
122 _GLIBCXX_END_NAMESPACE_VERSION
123 } // namespace
124