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1 // Copyright (c) 2011 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2011 The Chromium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #ifndef BASE_STRING16_H_ | 5 #ifndef BASE_STRING16_H_ |
6 #define BASE_STRING16_H_ | 6 #define BASE_STRING16_H_ |
7 #pragma once | 7 #pragma once |
8 | 8 |
9 // WHAT: | 9 // WHAT: |
10 // A version of std::basic_string that provides 2-byte characters even when | 10 // A version of std::basic_string that provides 2-byte characters even when |
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157 // std::basic_string<char> (string) and std::basic_string<wchar_t> (wstring). | 157 // std::basic_string<char> (string) and std::basic_string<wchar_t> (wstring). |
158 // | 158 // |
159 // This also works around a Mac OS X linker bug in ld64-85.2.1 (Xcode 3.1.2), | 159 // This also works around a Mac OS X linker bug in ld64-85.2.1 (Xcode 3.1.2), |
160 // in which the linker does not fully coalesce symbols when dead code | 160 // in which the linker does not fully coalesce symbols when dead code |
161 // stripping is enabled. This bug causes the memory errors described above | 161 // stripping is enabled. This bug causes the memory errors described above |
162 // to occur even when a std::basic_string<> does not cross shared library | 162 // to occur even when a std::basic_string<> does not cross shared library |
163 // boundaries, such as in statically-linked executables. | 163 // boundaries, such as in statically-linked executables. |
164 // | 164 // |
165 // TODO(mark): File this bug with Apple and update this note with a bug number. | 165 // TODO(mark): File this bug with Apple and update this note with a bug number. |
166 | 166 |
167 extern template class std::basic_string<char16, base::string16_char_traits>; | 167 extern template |
| 168 class BASE_EXPORT std::basic_string<char16, base::string16_char_traits>; |
168 | 169 |
169 typedef std::basic_string<char16, base::string16_char_traits> string16; | 170 typedef std::basic_string<char16, base::string16_char_traits> string16; |
170 | 171 |
171 namespace base { | 172 namespace base { |
172 BASE_EXPORT extern std::ostream& operator<<(std::ostream& out, | 173 BASE_EXPORT extern std::ostream& operator<<(std::ostream& out, |
173 const string16& str); | 174 const string16& str); |
174 } | 175 } |
175 | 176 |
176 #endif // WCHAR_T_IS_UTF32 | 177 #endif // WCHAR_T_IS_UTF32 |
177 | 178 |
178 #endif // BASE_STRING16_H_ | 179 #endif // BASE_STRING16_H_ |
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