C ++中的简易UNICODE

Question

Is there a way to make all character sequences UNICODE by default? For instance, now I have to say:

std::wstring wstr(L"rofl");

instead, I'd like to say

std::wstring wstr("rofl");

Thanks!

Visual C++ 8.0

Answer 1

不，您必须使用L""来指定宽字符串文字。

Answer 2

No, there is no such thing. Many platforms intended for compiliation with either Unicode or ASCII (but not both) provide a macros to allow easy selection of the desired character type (often _ is used, eg _("text") ). You can use this if your issue is compiling for both options. Otherwise, it's only an additional character.

Also, bear in mind the exact encoding of wchar_t may vary from platform to platform. Sometimes it is UTF-16, sometimes it is UTF-32. C++1x will add explicit encoding-specified strings u8"string" u"string" and U"string" . (I could be wrong about the prefixes, but there will be such strings).

Answer 3

我对此感到惊讶：wstring没有wstring（const char *）构造函数吗？

Answer 4

As an aside, CString supports cross-width construction (eg: CString("text") will work for Unicode builds, and CString(L"text") for MBCS builds), but still does a conversion in both cases. That might accomplish what you want, at the cost of performance.

I'd suggest getting used to using _T("text"), as that's generally what you want.