• Russ Lewis (6/6) Aug 18 2001 What happens in this cast:
• Walter (6/12) Aug 18 2001 It undergoes a simple pointer conversion, and is pretty obviously a codi...
• weingart cs.ualberta.ca (Tobias Weingartner) (4/9) Aug 20 2001 That begs the question, "What character set is the language written
• Russell Bornschlegel (10/12) Aug 20 2001 If you mean "what character set does the language expect source to

Russ Lewis <russ deming-os.org> writes:

What happens in this cast:

char *myString = "asdf";
wchar *myUnicodeString = (wchar*)myString;

If we do a simple pointer conversion, then we have lost the string
meaning of the pointer, which, while technically correct is most likely
not what 95% of the code writers would have wanted.

"Walter" <walter digitalmars.com> writes:

Russ Lewis wrote in message <3B7F3BCB.6C07277D deming-os.org>...
What happens in this cast:

char *myString = "asdf";
wchar *myUnicodeString = (wchar*)myString;

If we do a simple pointer conversion, then we have lost the string
meaning of the pointer, which, while technically correct is most likely
not what 95% of the code writers would have wanted.


It undergoes a simple pointer conversion, and is pretty obviously a coding
bug. Doing a cast on a string literal *will* convert the string itself, as:

    char *astring = "asdf";        // an ASCII version of "asdf"
    wchar *wstring = "asdf";    // makes a unicode version of "asdf"

No need to put the L prefix on the string.

weingart cs.ualberta.ca (Tobias Weingartner) writes:

In article <9lnimq$1ht9$1 digitaldaemon.com>, Walter wrote:
 
 Doing a cast on a string literal *will* convert the string itself, as:
 
     char *astring = "asdf";        // an ASCII version of "asdf"
     wchar *wstring = "asdf";    // makes a unicode version of "asdf"

That begs the question, "What character set is the language written
in?"  Will that be configurable?  Will it be ascii?  Etc, etc...

--Toby.

Russell Bornschlegel <kaleja estarcion.com> writes:

Tobias Weingartner wrote:
 That begs the question, "What character set is the language written
 in?"  Will that be configurable?  Will it be ascii?  Etc, etc...

If you mean "what character set does the language expect source to 
appear in," that's addressed in http://www.digitalmars.com/d/lex.html :



Unicode