dev-cpp-users

[Dev-C++] Converting char* to wxString

[Luis B. <lf...@ya...>]

Can someone help me?=0A=0AI'm trying to convert a char* to a wxString:=0A=
=0Avoid wxOpengl3D::ReadFile(wxString & file)=0A{=0A=0A    char * temp=3Dne=
w char[file.Len()+1];=0A    CTextFile cfile;=0A    wxString centerx;=0A=0A =
   // Open file=0A    cfile.InitializeWith((char *)file.mb_str( wxConvUTF8 =
));=0A    cfile.OpenFileToRead();=0A=0A    // Get a string from file ending=
 in ';'=0A    temp=3Dstrupr(cfile.get_str(temp,';'));=0A    centerx=3Dtemp;=
=0A    (...)=0A}=0A=0AI get this error:=0A=0Aerror: ambiguous overload for =
'operator=3D' in '((wxOpengl3D*)this)->wxOpengl3D::centerx =3D temp'=0AC:/w=
xWidgets-2.8.4/include/wx/string.h:676: note: candidates are: wxString& wxS=
tring::operator=3D(int) <near match>=0AC:/wxWidgets-2.8.4/include/wx/string=
.h:957: note:                 wxString& wxString::operator=3D(wxChar) <near=
 match>=0AC:/wxWidgets-2.8.4/include/wx/string.h:971: note:                =
 wxString& wxString::operator=3D(const wxWCharBuffer&) <near match>=0AC:/wx=
Widgets-2.8.4/include/wx/string.h:1026: note:                 wxString& wxS=
tring::operator=3D(const wxString&) <near match>=0A=0AWhen using wxWidgets-=
2.6 no error were found.=0A=0AThanks in advance.=0A=0A=0A=0A=0A=0A       =
=0A________________________________________________________________________=
____________=0ABe a better Heartthrob. Get better relationship answers from=
 someone who knows. Yahoo! Answers - Check it out. =0Ahttp://answers.yahoo.=
com/dir/?link=3Dlist&sid=3D396545433

Re: [Dev-C++] Converting char* to wxString

[matheus r. <mfr...@gm...>]

Change function declaration to:

void wxOpengl3D::ReadFile(const wxString & file)

maybe it helps compiler find the exact match.

2007/8/9, Luis Bras <lf...@ya...>:
>
> Can someone help me?
>
> I'm trying to convert a char* to a wxString:
>
> void wxOpengl3D::ReadFile(wxString & file)
> {
>
>     char * temp=new char[file.Len()+1];
>     CTextFile cfile;
>     wxString centerx;
>
>     // Open file
>     cfile.InitializeWith((char *)file.mb_str( wxConvUTF8 ));
>     cfile.OpenFileToRead();
>
>     // Get a string from file ending in ';'
>     temp=strupr(cfile.get_str(temp,';'));
>     centerx=temp;
>     (...)
> }
>
> I get this error:
>
> error: ambiguous overload for 'operator=' in
> '((wxOpengl3D*)this)->wxOpengl3D::centerx = temp'
> C:/wxWidgets-2.8.4/include/wx/string.h:676: note: candidates are: wxString&
> wxString::operator=(int) <near match>
> C:/wxWidgets-2.8.4/include/wx/string.h:957: note:                 wxString&
> wxString::operator=(wxChar) <near match>
> C:/wxWidgets-2.8.4/include/wx/string.h:971: note:                 wxString&
> wxString::operator=(const wxWCharBuffer&) <near match>
> C:/wxWidgets-2.8.4/include/wx/string.h:1026: note:                 wxString&
> wxString::operator=(const wxString&) <near match>
>
> When using wxWidgets-2.6 no error were found.
>
> Thanks in advance.
>
>
>
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Re: [Dev-C++] Converting char* to wxString

[Lloyd <ll...@cd...>]

On Thu, 2007-08-09 at 10:03 -0700, Luis Bras wrote:
> centerx=temp;

I think here is the error. centerx is a wxString and temp is char* and
they are incompatible data types. So if you want to assign temp to
centerx do the following


centerx=wxString::FromAscii(tempx);

[static wxString FromAscii(const char* s)]

Regards,
  Lloyd


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Re: [Dev-C++] Converting char* to wxString

[Stefan K. <Klu...@gm...>]

Lloyd schrieb:
> On Thu, 2007-08-09 at 10:03 -0700, Luis Bras wrote:
>   
>> centerx=temp;
>>     
>
> I think here is the error. centerx is a wxString and temp is char* and
> they are incompatible data types. So if you want to assign temp to
> centerx do the following
>
>
> centerx=wxString::FromAscii(tempx);
>
> [static wxString FromAscii(const char* s)]
>
> Regards,
>   Lloyd
>   
Hi,

this only works if you are really using ASCII (no characters above 127) 
and no locale based conversion is applied.
(see 
http://www.wxwidgets.org/manuals/stable/wx_wxstring.html#wxstringfromascii )
To do this assignment with locale based conversion use something like:
centerx=wxString(tempx,wxConvCurrent);
(see 
http://www.wxwidgets.org/manuals/stable/wx_mbconvclasses.html#wxmbconvobjects 
)
The question is, why aren't you staying in wxWidgets space and use 
wxTextFile instead of CTextFile.
This way you wouldn't have to worry about string format conversions.

Also be careful with the line
cfile.InitializeWith((char *)file.mb_str( wxConvUTF8 ));
Are you sure that every Operating System running your software saves its 
filenames in UTF8?
Probably the conversion should be file.mb_str( wxConvFileName );

Regards,
Stefan