|  | // Copyright 2020 The Chromium Authors. All rights reserved. | 
|  | // Use of this source code is governed by a BSD-style license that can be | 
|  | // found in the LICENSE file. | 
|  |  | 
|  | #ifndef BASE_STRINGS_STRCAT_WIN_H_ | 
|  | #define BASE_STRINGS_STRCAT_WIN_H_ | 
|  |  | 
|  | #include <initializer_list> | 
|  | #include <string> | 
|  |  | 
|  | #include "polyfills/base/base_export.h" | 
|  | #include "base/compiler_specific.h" | 
|  | #include "base/containers/span.h" | 
|  | #include "base/strings/string_piece.h" | 
|  |  | 
|  | namespace gurl_base { | 
|  |  | 
|  | // The following section contains overloads of the cross-platform APIs for | 
|  | // std::wstring and gurl_base::WStringPiece. | 
|  | BASE_EXPORT void StrAppend(std::wstring* dest, span<const WStringPiece> pieces); | 
|  | BASE_EXPORT void StrAppend(std::wstring* dest, span<const std::wstring> pieces); | 
|  |  | 
|  | inline void StrAppend(std::wstring* dest, | 
|  | std::initializer_list<WStringPiece> pieces) { | 
|  | StrAppend(dest, make_span(pieces)); | 
|  | } | 
|  |  | 
|  | BASE_EXPORT std::wstring StrCat(span<const WStringPiece> pieces) | 
|  | WARN_UNUSED_RESULT; | 
|  | BASE_EXPORT std::wstring StrCat(span<const std::wstring> pieces) | 
|  | WARN_UNUSED_RESULT; | 
|  |  | 
|  | inline std::wstring StrCat(std::initializer_list<WStringPiece> pieces) { | 
|  | return StrCat(make_span(pieces)); | 
|  | } | 
|  |  | 
|  | }  // namespace base | 
|  |  | 
|  | #endif  // BASE_STRINGS_STRCAT_WIN_H_ |