Re: pgAgent 2.0.0 compilation errors (types casting)

Hi Tomasz

On Tue, Nov 25, 2008 at 11:02 AM, Tomasz Zeman <tomasz(dot)zeman(at)gmail(dot)com> wrote:
> Hi Dave,
>
>
> I have adjusted cmake to use the mswu and wxWidgets are compiled to use
> Unicode.
> Unfortunately, the compilation error still appears.
>
> Between other errors, I am having the following compilation ones:
> win32.cpp
> ..\win32.cpp(59) : error C2660: 'wxString::wc_str' : function does not take
> 0 arguments
> ..\win32.cpp(123) : error C2664: '_wcsdup' : cannot convert parameter 1 from
> 'const TCHAR *' to 'const wchar_t *'
> Types pointed to are unrelated; conversion requires
> reinterpret_cast, C-style cast or function-style cast
> ..\win32.cpp(520) : error C2660: 'wxString::wc_str' : function does not take
> 0 arguments
> ..\win32.cpp(520) : error C2466: cannot allocate an array of constant size 0
>
>
> Extract from D:\C++\pgAgent-2.0.0-Source\win32.cpp (52) The compilation
> fails on the last line.
> void LogMessage(wxString msg, int level)
> {
> if (eventHandle)
> {
> LPCTSTR *tmp;
>
> tmp = (LPCTSTR *)malloc(sizeof(LPCTSTR));
> tmp[0] = _wcsdup(msg.wc_str());
>
>
> The compiler says the wc_str expects some arguments.

That code has been like that for over 2 and a half years now, and has
been compiled countless times.

> I have inspected the wxWidget::wxString class, and there is no function
> ::wc_str without parameters.

No, but there is in include/wx/string.h (defined for Unicode builds):

const wxChar* wc_str() const { return c_str(); }

> I cannot understand how it is possible to compile this. Dave, what version
> of wx are you using?

I tested on 2.8.8 and then upgraded to 2.8.9 in case it was a version
specific issue.

Does it compile if you change the call to c_str() ?

--
Dave Page
EnterpriseDB UK: http://www.enterprisedb.com