Converting QString to std::string*

Question

how can i do this:

_name__GetAvailable inp;

QString tmp;
inp.From = tmp;

this is definition of name_GetAvailable class:

class SOAP_CMAC _name__GetAvailable
{
public:
    std::string *From;  
    std::string *To;    
    struct soap *soap;  
}

I tried this :

inp.From = tmp.toStdString();

but i've got the following error:

C:\Qt2\Qt5.0.1\Tools\QtCreator\bin\Ticket\mainwindow.cpp:49: error: cannot convert 'std::string {aka std::basic_string}' to 'std::string* {aka std::basic_string*}' in assignment

@sashoalm how is that a duplicate? If you read the question you'd see that he'd *already* converted from `QString` to `std::string`. His problem is getting a *pointer* to a `std::string` — jalf, May 16 '13 at 07:59
@sashoalm OP wants a `std::string*` not just a `std::string`. — zakinster, May 16 '13 at 08:00
If you have a std::string, you should be able to come up with a pointer from it, or you should go back to learning C++. — sashoalm, May 16 '13 at 08:01
@sashoalm That is stretching the definition of "duplicate" somewhat. Voting to reopen. — cmannett85, May 16 '13 at 12:56

zakinster · Accepted Answer · 2013-05-16T07:52:08.003

3

If you want a std::string pointer, you need to allocate a new std::string :

inp.From = new std::string(tmp.toStdString());

But I really don't see the reason why you would need to manipulate std::string by pointer.

If OAP_CMAC _name__GetAvailable is yours, you could manipulate std::string by value :

class SOAP_CMAC _name__GetAvailable
{
public:
    std::string From;  
    std::string To;    
    struct soap *soap;  
}

Otherwise, don't forget to delete the std::string* From and To at some point.

edited May 16 '13 at 07:52

answered May 16 '13 at 07:46

zakinster

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Thanks it worked I used gSOAP toolkit for creating some header and source files and now i'm using its class and functions and i cant change their definitions – DAkbariSE May 16 '13 at 08:28

Converting QString to std::string*

1 Answers1