There is trouble passing CArray into the function. 1

[sulacco]

What's wrong with this code?

//declaration

GetArrFromName(CString name, CArray<CString,CString>arr);

...

//definition
void CMyClass::GetArrFromName(CString name, CArray<CString,CString>arr){
	


}

...
While I'm not using this function everything ok.
compiler don't bark at me
but when I started to use it, the compliler shows error message.

//using
CMyClass mymy;
CArray<CString,CStrin>arr;
CString name;
mymy.GetArrFromName(name,arr);

//error message
...
error C2664: 'GetArrFromName' : cannot convert parameter 2 from 'class CArray<class CString,class CString>' to 'class CArray<class CString,class CString>'
No copy constructor available for class 'CArray<class CString,class CString>'
MyListNew.cpp

 

[uolj]

The problem is that CArray is not meant to be copied, and since you are passing it by value to your function, a copy will be made.

To get it to work, change your function to use a const reference (and you might as well do that for the CString parameter too):

GetArrFromName([COLOR=blue]const[/color] CString[COLOR=blue]&[/color] name, [COLOR=blue]const[/color] CArray<CString,CString>[COLOR=blue]&[/color] arr);

 

[sulacco]

Thank you, it's working just fine!