問題描述
我嘗試過實現這樣的功能，但不幸的是它不起作用:
I've tried implementing a function like this, but unfortunately it doesn't work:
const wchar_t *GetWC(const char *c)
{
const size_t cSize = strlen(c)+1;
wchar_t wc[cSize];
mbstowcs (wc, c, cSize);
return wc;
}
我的主要目標是能夠在 Unicode 應用程序中集成普通字符字符串.非常感謝你們提供的任何建議.
My main goal here is to be able to integrate normal char strings in a Unicode application. Any advice you guys can offer is greatly appreciated.
推薦答案
使用 std::wstring 而不是 C99 變長數組.當前標準保證 std::basic_string 的連續緩沖區.例如，
Use a std::wstring instead of a C99 variable length array. The current standard guarantees a contiguous buffer for std::basic_string. E.g.,
std::wstring wc( cSize, L'#' );
mbstowcs( &wc[0], c, cSize );
C++ 不支持 C99 可變長度數組，因此如果您將代碼編譯為純 C++，它甚至無法編譯.
C++ does not support C99 variable length arrays, and so if you compiled your code as pure C++, it would not even compile.
隨著更改，您的函數返回類型也應該是 std::wstring.
With that change your function return type should also be std::wstring.
記得在main中設置相關的locale.
Remember to set relevant locale in main.
例如，setlocale( LC_ALL, "" ).
這篇關于如何將 char* 轉換為 wchar_t*?的文章就介紹到這了，希望我們推薦的答案對大家有所幫助，也希望大家多多支持html5模板網！