46 lines
1.4 KiB
C++
46 lines
1.4 KiB
C++
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// Copyright (c) 2012-2015, The CryptoNote developers, The Bytecoin developers
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//
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// This file is part of Bytecoin.
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//
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// Bytecoin is free software: you can redistribute it and/or modify
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// it under the terms of the GNU Lesser General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// Bytecoin is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU Lesser General Public License for more details.
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//
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// You should have received a copy of the GNU Lesser General Public License
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// along with Bytecoin. If not, see <http://www.gnu.org/licenses/>.
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#include "ErrorMessage.h"
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#include <cstddef>
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#include <windows.h>
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namespace System {
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std::string lastErrorMessage() {
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return errorMessage(GetLastError());
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}
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std::string errorMessage(int error) {
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struct Buffer {
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~Buffer() {
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if (pointer != nullptr) {
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LocalFree(pointer);
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}
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}
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LPTSTR pointer = nullptr;
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} buffer;
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auto size = FormatMessage(FORMAT_MESSAGE_FROM_SYSTEM | FORMAT_MESSAGE_ALLOCATE_BUFFER, nullptr, error,
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MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT), reinterpret_cast<LPTSTR>(&buffer.pointer), 0, nullptr);
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return "result=" + std::to_string(error) + ", " + std::string(buffer.pointer, size);
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}
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}
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