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ee771fa740
Summary: There is no good reason for this function to be in a header, let's move it to StringConv.cpp Reviewed By: genevievehelsel Differential Revision: D24000882 fbshipit-source-id: 5bb6bc3b9ef37232d38b8e35da693e12c0453ea1
41 lines
1.0 KiB
C++
41 lines
1.0 KiB
C++
/*
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* Copyright (c) Facebook, Inc. and its affiliates.
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*
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* This software may be used and distributed according to the terms of the
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* GNU General Public License version 2.
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*/
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#ifdef _WIN32
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#include "eden/fs/utils/StringConv.h"
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namespace facebook::eden {
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std::wstring multibyteToWideString(folly::StringPiece multiBytePiece) {
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if (multiBytePiece.empty()) {
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return L"";
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}
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int inputSize = folly::to_narrow(folly::to_signed(multiBytePiece.size()));
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// To avoid extra copy or using max size buffers we should get the size
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// first and allocate the right size buffer.
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int size = MultiByteToWideChar(
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CP_UTF8, 0, multiBytePiece.data(), inputSize, nullptr, 0);
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if (size > 0) {
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std::wstring wideString(size, 0);
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int resultSize = MultiByteToWideChar(
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CP_UTF8, 0, multiBytePiece.data(), inputSize, wideString.data(), size);
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if (size == resultSize) {
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return wideString;
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}
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}
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throw makeWin32ErrorExplicit(
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GetLastError(), "Failed to convert char to wide char");
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}
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} // namespace facebook::eden
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#endif
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