I've been trying to get the xml samples to work on Mac OS X, CW 8.3 today with no success. I get the following assertion in range_run.ipp:
Assertion (r.is_valid()) failed in "range_run.ipp", function "set", line 132
This assertion is the result of the following call in the xml_grammar::definition constructor:
chset_t Char(L"\x9\xA\xD\x20-\xD7FF\xE000-\xFFFD");
The problem seems to be some sort of sign extension problem, or two byte versus four byte characters. If I do a memory dump on the constant wide character string in the above line of code I get the following:
00000009 0000000A 0000000D 00000020 0000002D FFFFD7FF FFFFE000 0000002D FFFFFFFD
The assertion happens because of the sign extension, causing the end of the range to be less than the beginning of the range.
First off, I don't understand why these characters are four bytes? I thought the L"" made them two byte characters. Second, they appear to be being treated as signed characters as you can see from the sign extension. I've looked for options to control the code generation aspects of characters. In the C++ language options panel I have enabled "Use Unsigned Chars", "Multi-Byte Aware", and "Enable wchar_t Support". I've actually tried different combinations of these but nothing seems to change the way the code is generated for these constant wide character arrays.
I know that some of you are able to build and run the XML samples successfully on Mac OS X.
One more note. I'm building a Mach-o binary, console application using the MSL Mach-o libraries.
Thanks, Michael-
On Saturday, March 8, 2003, at 05:27 PM, Joel de Guzman wrote:
Michael Burbidge wrote:I've been trying to use the XML samples in libs/example/application/xml. They build fine, but get a runtime assert when given even the simplest xml file. Are these samples kept up to date? Here's the assert that I get:
Assertion (r.is_valid()) failed in "range_run.ipp", function "set", line 132
This is on Mac OS X using CodeWarrior 8.
I assume this is a Spirit related question.
Before anything else, please post Spirit support related questions to: [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/spirit-general
Also, it would be best to write a more descriptive title. Otherwise, your post might probably be easy to miss.
Ok, nuff said...
The XML stuff has been tested and works with no problems on Windows
and Linux. I come from the Mac but unfortunately I do not have access to
a Mac and CW8 right now. Fortunately Paul Snively volunteered to check
Spirit on CW8 on the Mac. You can also help out by giving us a more detailed
account. For instance, what is the current state of the range (r) when the
assertion fired?
Please post subsequent messages to Spirit's mailing lits. Let's continue
this thread there.
Thank you. -- Joel de Guzman joel at boost-consulting.com http://www.boost-consulting.com http://spirit.sf.net
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