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1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2012 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_STRINGS_STRING16_H_ |
6 #define BASE_STRING16_H_ | 6 #define BASE_STRINGS_STRING16_H_ |
7 | 7 |
8 // WHAT: | 8 // WHAT: |
9 // A version of std::basic_string that provides 2-byte characters even when | 9 // A version of std::basic_string that provides 2-byte characters even when |
10 // wchar_t is not implemented as a 2-byte type. You can access this class as | 10 // wchar_t is not implemented as a 2-byte type. You can access this class as |
11 // string16. We also define char16, which string16 is based upon. | 11 // string16. We also define char16, which string16 is based upon. |
12 // | 12 // |
13 // WHY: | 13 // WHY: |
14 // On Windows, wchar_t is 2 bytes, and it can conveniently handle UTF-16/UCS-2 | 14 // On Windows, wchar_t is 2 bytes, and it can conveniently handle UTF-16/UCS-2 |
15 // data. Plenty of existing code operates on strings encoded as UTF-16. | 15 // data. Plenty of existing code operates on strings encoded as UTF-16. |
16 // | 16 // |
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179 extern template | 179 extern template |
180 class BASE_EXPORT std::basic_string<base::char16, base::string16_char_traits>; | 180 class BASE_EXPORT std::basic_string<base::char16, base::string16_char_traits>; |
181 | 181 |
182 #endif // WCHAR_T_IS_UTF32 | 182 #endif // WCHAR_T_IS_UTF32 |
183 | 183 |
184 // TODO(brettw) update users of string16 to use the namespace and remove | 184 // TODO(brettw) update users of string16 to use the namespace and remove |
185 // this "using". | 185 // this "using". |
186 using base::char16; | 186 using base::char16; |
187 using base::string16; | 187 using base::string16; |
188 | 188 |
189 #endif // BASE_STRING16_H_ | 189 #endif // BASE_STRINGS_STRING16_H_ |
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