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`SWIFT_RUNTIME_STDLIB_INTERNAL` does `extern "C"`, so we can't put these in a namespace and have to use a C-style prefix instead. Also slightly rearrange the code in `CommandLine.cpp`. rdar://103397975
75 lines
2.0 KiB
C++
75 lines
2.0 KiB
C++
//===--- Win32.cpp - Win32 utility functions --------------------*- C++ -*-===//
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//
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// This source file is part of the Swift.org open source project
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//
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// Copyright (c) 2014 - 2017 Apple Inc. and the Swift project authors
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// Licensed under Apache License v2.0 with Runtime Library Exception
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//
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// See https://swift.org/LICENSE.txt for license information
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// See https://swift.org/CONTRIBUTORS.txt for the list of Swift project authors
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//
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//===----------------------------------------------------------------------===//
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//
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// Utility functions that are specific to the Windows port.
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//
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//===----------------------------------------------------------------------===//
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#include "swift/Runtime/Debug.h"
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#include "swift/Runtime/Win32.h"
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#ifdef _WIN32
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#include <windows.h>
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char *
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_swift_win32_copyUTF8FromWide(const wchar_t *str) {
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char *result = nullptr;
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int len = ::WideCharToMultiByte(CP_UTF8, WC_ERR_INVALID_CHARS,
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str, -1,
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nullptr, 0,
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nullptr, nullptr);
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if (len <= 0)
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return nullptr;
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result = reinterpret_cast<char *>(std::malloc(len));
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if (!result)
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return nullptr;
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len = ::WideCharToMultiByte(CP_UTF8, WC_ERR_INVALID_CHARS,
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str, -1,
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result, len,
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nullptr, nullptr);
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if (len)
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return result;
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free(result);
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return nullptr;
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}
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wchar_t *
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_swift_win32_copyWideFromUTF8(const char *str) {
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wchar_t *result = nullptr;
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int len = ::MultiByteToWideChar(CP_UTF8, MB_ERR_INVALID_CHARS,
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str, -1,
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nullptr, 0);
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if (len <= 0)
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return nullptr;
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result = reinterpret_cast<wchar_t *>(std::malloc(len * sizeof(wchar_t)));
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if (!result)
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return nullptr;
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len = ::MultiByteToWideChar(CP_UTF8, MB_ERR_INVALID_CHARS,
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str, -1,
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result, len);
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if (len)
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return result;
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free(result);
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return nullptr;
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}
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#endif // defined(_WIN32)
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