QString problem

[vermarajeev]

Hi guys, this is something which is making me wild...

This is a simple thing but I'm not able to understand why this is not happening...

My code is something like this

const std::string &str = "hello";
QString s(str); //here is the error, cannot typecast std::string to QString

I dont want to use const char* in QString constructor
like this QString s(str.data());

My target is to use only std::string as an argument to QString...
Can anyone help please

Thankx

[spud]

try QString::fromStdString(str)

btw I am surprised this line doesn't crash the application:
const std::string &str = "hello";

[vermarajeev]

try QString::fromStdString(str)

btw I am surprised this line doesn't crash the application:
const std::string &str = "hello";

Hi thankx for your reply.
But I dont see any QString::fromStdString in Qt3.3.5...

Please help me

[spud]

I don't see why the following shouldn't work.

std::string str = "hello";
QString s(str);

Mind the missing '&'

[vermarajeev]

I don't see why the following shouldn't work.

std::string str = "hello";
QString s(str);

Mind the missing '&'

Sorry that too doesnt work...Have you tried on your system...
I get his error on my system.
cannot typecast std::string to QString

Thankx

[vermarajeev]

Hi guys, come on
this is a simple problem....

Please get me some ideas
Thankx

[munna]

try

std::string str = "hello";
QString s = str;

std::string str = "hello";
QString s = str;

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It works

[munna]

I am using 3.3.6 and the following code is not giving any error

std::string str = "hello";
QString s(str);

std::string str = "hello";
QString s(str);

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[vermarajeev]

I am using 3.3.6 and the following code is not giving any error

std::string str = "hello";
QString s(str);

std::string str = "hello";
QString s(str);

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This is really surprising, when I run this same code in Qt3.3.5, it works fine but when the same code is run in Qt3.3.4 it fails..Telling it cannot be typecasted.

How is that possible???Also when I just refered Qt3.3.4 assistant there is a member called
QString ( const std::string & str )
Then what is the problem? Is this a bug in Qt3.3.4?
I'm unable to understand..Please help me.

Cannot I make this run on Qt3.3.4??
Thankx

[jacek]

when I run this same code in Qt3.3.5, it works fine but when the same code is run in Qt3.3.4 it fails

Maybe that Qt 3.3.4 version was compiled without STL support?