Re: [Cppcms-users] Bizarre prepared statement problem

[Artyom B. <art...@ya...>]

----- Original Message -----
> From: "ele...@ex..." <ele...@ex...>
> To: cpp...@li...
> Cc: Artyom Beilis <art...@ya...>
> Sent: Wednesday, May 23, 2012 11:18 AM
> Subject: Re: [Cppcms-users] Bizarre prepared statement problem
> 
>T ried to build cppdb-trunk got this error:
> 
> [ 34%] Building CXX object CMakeFiles/cppdb.dir/drivers/odbc_backend.cpp.o
> /home/petr/Downloads/cppdb/cppdb-trunk/drivers/odbc_backend.cpp:46: error:
> size of array 'assert_on_sqlwchar_is_16' is negative
> /home/petr/Downloads/cppdb/cppdb-trunk/drivers/odbc_backend.cpp: In
> function 'std::basic_string<wchar_t, std::char_traits<wchar_t>,
> std::allocator<wchar_t> > cppdb::odbc_backend::tosqlwide(const
> std::string&)':
> /home/petr/Downloads/cppdb/cppdb-trunk/drivers/odbc_backend.cpp:333:
> warning: dereferencing type-punned pointer will break strict-aliasing
> rules
> 
> Any ideas?
> 
> System is FreeBSD 9. gcc 4.2.1
> 
> Petr
> 
> 

You are using iODBC instead of UnixODBC. ODCB standard requires that SQLWCHAR_T is
16 bit value, iODBC implements this incorrectly:

- Either install UnixODBC instead of iODBC
- Disable ODBC in cppdb with an option -DDISABLE_ODBC=ON


 Artyom Beilis
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