code integration problem

[edwar64896]

Hello gurus. I'm not an entirely inexperienced C++ programmer, but it has been a very long while since I have dug out the tools and I am struggling with some code integration.

Am using QT framework to get started and have imported an external library or two into the project.

Unfortunately I am unable to get the library to compile as the compiler is complaining about its inability to convert parameters. I suspect this is most likely to be a compiler versioning issue and suspect its a fairly simple fix to get things going, but I am unsure as to where to start.

The first error shown indicates that the compiler cannot convert from 'const std::string' to const' ZenLib::Ztring' and lots of typecast errors follow. I am fairly certain this code should compile as there is a published application based on it, so I assume that there is a missing compiler setting.

Would very much appreciate some assistance in getting this stuff to compile so I can move forward....

thanks

mark.

[kbw]

It would help if you posted the line of code that has the conversion error.

From the docs, you shouldn't really have a problem making a ZenLib::Ztring from an std::string.
http://zenlib.sourceforge.net/classZenLib_1_1Ztring.html

[edwar64896]

It's unfortunately one error of many, but conversion seems to be the main thread of all the problems, so I am assuming that fixing one will fix a lot of others...

This is the first function...

bool Riff_Handler::Open(const string &FileName)
{
//Init
PerFile_Error.str(string());
File_IsValid=false;
File_IsCanceled=false;
bool ReturnValue=true;

//Global info
delete Chunks; Chunks=new Riff();
Chunks->Global->File_Name=FileName;

//Opening file
if (!File::Exists(FileName) || !Chunks->Global->In.Open(FileName)) /// compilation error here
{
Errors<<FileName<<": File does not exist"<<endl;
PerFile_Error<<"File does not exist"<<endl;
return false;
}
Chunks->Global->File_Size=Chunks->Global->In.Size_Get();
Chunks->Global->File_Date=Chunks->Global->In.Created_Local_Get();
if (Chunks->Global->File_Date.empty())
Chunks->Global->File_Date=Chunks->Global->In.Modified_Local_Get();

//Base
Riff_Base::chunk Chunk;
Chunk.Content.Size=Chunks->Global->File_Size;
Options_Update();
....

bool File::Exists(const Ztring &File_Name); // is the prototype in the zenlib namespace...

....

Ztring constructors...

class Ztring : public tstring //for details about undocumented methods see http://www.sgi.com/tech/stl/basic_string.html
{
public :
//Constructor/destructor
Ztring () : tstring(){};
Ztring (const tstring& str) : tstring(str){};
Ztring (const tstring& str, size_type pos, size_type n=npos) : tstring(str, pos, n){};
Ztring (const Char* s, size_type n) : tstring(s, n){};
Ztring (const Char* s) : tstring(s){};
Ztring (size_type n, Char c) : tstring(n, c){};
#ifdef UNICODE
Ztring (const char* S) : tstring(){From_UTF8(S);};
Ztring (const char* S, size_type n) : tstring(){From_UTF8(S, 0, n);};
#endif //UNICODE

.... hope this gives you something to go on....

I am attempting to compile this using a Microsoft C++ compiler under the QT framework (QT Creator) in Windows 7

cheers,

mark

[kbw]

Which line has the error?

It's helpful if you use the code format tag around your code, it'll make it format it and add line numbers.