Re: Are _T() and TEXT() macros equivalent?

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On Mon, 16 Apr 2007 10:15:58 -0700, "Tom Serface"
<tom.nospam@xxxxxxxxxxxxx> wrote:

It will mean that the variable holds a character (whatever that is depending
on the compile guidelines).

But we can already achieve that with TCHAR. Is it really so bad? I think it
would be bad for the meaning of a built-in type to be context-dependent in
this way. For example, consider a function like GetProcAddress. It's
defined in terms of LPCSTR, which indicates that even in Unicode builds,
it's still ANSI. With the meaning of char dependent on the capriciousness
of a switch, you couldn't use char in this way, even though the function
takes a string. I guess you'd use the new type 'byte", but that doesn't
convey the idea of "string" very well. Or maybe you'd invent a set of
macros akin to the current TCHAR family just so you can use char as you
once did. And if you did implement the /unicode switch, you'd have to cater
to the Unix crowd, and some of their compilers implement wchar_t as UCS-4.
So now you'd have sizeof(char) == 4, which is almost certainly >
sizeof(short), which violates another fundamental C and C++ rule, that
sizeof(char) <= sizeof(short). I guarantee you that the more an expert
thinks about this proposed change, the more problems and ripple effects he
will find, and this will go on for quite a while. It ain't a simple thing
to do.

--
Doug Harrison
Visual C++ MVP
.

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