从字符串转换为wstring导致ú丢失编码 [英] Conversion from string to wstring is causing ú to lose encoding

问题描述

变量 filepath 这是一个字符串包含值Música。我有以下代码：

The variable filepath which is a string contains the value Música. I have the following code:

wstring fp(filepath.length(), L' ');
copy(filepath.begin(), filepath.end(), fp.begin());

fp 然后包含值 M + SICA 。如何将 filepath 转换为 fp 而不会丢失ú字符的编码？

fp then contains the value M?sica. How do I convert filepath to fp without losing the encoding for the ú character?

推荐答案

使用功能MultiByteToWideChar。

Use the function MultiByteToWideChar.

示例代码：

std::string toStdString(const std::wstring& s, UINT32 codePage)
{
    unsigned int bufferSize = (unsigned int)s.length()+1;
    char* pBuffer = new char[bufferSize];
    memset(pBuffer, 0, bufferSize);
    WideCharToMultiByte(codePage, 0, s.c_str(), (int)s.length(), pBuffer, bufferSize, NULL, NULL);
    std::string retVal = pBuffer;
    delete[] pBuffer;
    return retVal;
}

std::wstring toStdWString(const std::string& s, UINT32 codePage)
{
    unsigned int bufferSize = (unsigned int)s.length()+1;
    WCHAR* pBuffer = new WCHAR[bufferSize];
    memset(pBuffer, 0, bufferSize*sizeof(WCHAR));
    MultiByteToWideChar(codePage, 0, s.c_str(), (int)s.length(), pBuffer, bufferSize);
    std::wstring retVal = pBuffer;
    delete[] pBuffer;
    return retVal;
}

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