How to convert char* to PRUnichar *

Question

I need to pass char* to XPCOM function but that function accepts PRUnichar *. How to convert from char* to PRUnichar * ?

score 3 · Accepted Answer · answered Oct 02 '09 at 09:15

3

Take a look at nsAutoString.

answered Oct 02 '09 at 09:15

Georg Fritzsche

Note that you only want that if you are absolutely sure your data is ASCII. To quote the doc you linked to: "assign/append/insert with _LOSSY_ conversion". – Ted Mielczarek Oct 13 '09 at 14:54
2

I prefer to not make that assumption. – Ted Mielczarek Oct 31 '09 at 12:58

score 2 · Answer 2 · answered Oct 13 '09 at 15:11

If you have a UTF-8 string then you can use NS_ConvertUTF8toUTF16 or CopyUTF8toUTF16. If you have some other encoding then you'll need to use nsICharsetConverterManager or some other API to convert to something sane: http://mxr.mozilla.org/mozilla-central/source/intl/uconv/idl/nsICharsetConverterManager.idl

The XPCOM string guide has a good reference on this: https://developer.mozilla.org/En/XPCOM:Strings#Unicode_Conversion_nsCString_vs._nsString

score 1 · Answer 3 · answered Oct 09 '09 at 23:48

1

In which character set is your char* ?

answered Oct 09 '09 at 23:48

Neil

3 Answers3