Simple simple program

Ryback · 09-08-2004, 08:34 PM

Hello, I have this very simple program which won't compile. Please help me!

Code:

#include <iostream>
#include <string>
#include "stdafx.h"


int main()
{
	std::string name("This is a test!");
	
	std::cout << name << std::endl;


	return 0;
}

I get the error:
error C2679: binary '<<' : no operator found which takes a right-hand operand of type 'std::string' (or there is no acceptable conversion)

I am using Visual c++ .NET. Can someone please tell me why this doesn't work?

thanks!

DeepFyre · 09-08-2004, 08:38 PM

hmmm.....not sure.....it works for me in dev-cpp

big146 · 09-08-2004, 09:10 PM

Worked for me too...sorry...wish i could tell ya.

Vicious · 09-08-2004, 09:12 PM

Yep worked for me, of course in dev-c++ I removed the "stdafx.h".

DeepFyre · 09-08-2004, 09:13 PM

ya you dont get stafx.h with dev cpp

Hunter2 · 09-08-2004, 09:24 PM

I would remove the stdafx.h, simply because in this case there is absolutely no use for it. Other than that however, I see nothing syntactically wrong with your code - unless of course the C++ standard does not allow use of std::string with cout's << operator, which I highly doubt since nearly every compiler allows it.

If you want it to *work* though, try using name.c_str() instead of name. It is guaranteed to be supported by the standard. And if that doesn't work, then you know your compiler's screwed

Ryback · 09-08-2004, 10:15 PM

Thanks all for the help. I found some more information. When I create my project in Visual Studio I am choosing a "Win32 Console Project". This is why the #include "stdafx.h" line is there (and cannot be removed). But the program does not work. But here is what else I discovered: if I instead create a "Console Application (.NET)" project, the program will work without any errors.

Does anyone have experience with Visual Studio who can help?

Thanks guys.

bithub · 09-08-2004, 10:38 PM

move the line
#include "stdafx.h"

To the top of your includes. stdafx.h must always be included first.

Ryback · 09-08-2004, 10:44 PM

Quote:

Originally Posted by bithub

move the line
#include "stdafx.h"

To the top of your includes. stdafx.h must always be included first.

Bithub, that works! Thank you!!

**Salem** · 09-09-2004, 01:34 AM

> This is why the #include "stdafx.h" line is there
Remove it, and then turn off "precompiled headers" in the project settings.

big146 · 09-09-2004, 05:48 AM

If you want to run just a simple console app, select win32 >> then console project, when the application wizzard dialog pops up select application settings and then select Empty project. After the solution loads up right click source files and select add >> then new item >> from the list of templates select cpp.

that will give you a project without the stdafx.h header files.
then just add your code from the book.

09-08-2004, 08:34 PM	#1
Ryback Registered User Join Date: Sep 2004 Posts: 3	Simple simple program Hello, I have this very simple program which won't compile. Please help me! Code: #include <iostream> #include <string> #include "stdafx.h" int main() { std::string name("This is a test!"); std::cout << name << std::endl; return 0; } I get the error: error C2679: binary '<<' : no operator found which takes a right-hand operand of type 'std::string' (or there is no acceptable conversion) I am using Visual c++ .NET. Can someone please tell me why this doesn't work? thanks!
Ryback is offline

09-08-2004, 08:38 PM	#2
DeepFyre Arggggh Join Date: Sep 2004 Posts: 227	hmmm.....not sure.....it works for me in dev-cpp __________________ Keyboard Not Found! Press any key to continue. . .
DeepFyre is offline

09-08-2004, 09:10 PM	#3
big146 Registered User Join Date: Apr 2003 Posts: 74	Worked for me too...sorry...wish i could tell ya. __________________ big146
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09-08-2004, 09:12 PM	#4
Vicious i dont know Join Date: May 2002 Posts: 1,200	Yep worked for me, of course in dev-c++ I removed the "stdafx.h". __________________ What is C++?
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09-08-2004, 09:13 PM	#5
DeepFyre Arggggh Join Date: Sep 2004 Posts: 227	ya you dont get stafx.h with dev cpp __________________ Keyboard Not Found! Press any key to continue. . .
DeepFyre is offline

09-08-2004, 09:24 PM	#6
Hunter2 Carnivore ('-'v) Join Date: May 2002 Posts: 2,865	I would remove the stdafx.h, simply because in this case there is absolutely no use for it. Other than that however, I see nothing syntactically wrong with your code - unless of course the C++ standard does not allow use of std::string with cout's << operator, which I highly doubt since nearly every compiler allows it. If you want it to work though, try using name.c_str() instead of name. It is guaranteed to be supported by the standard. And if that doesn't work, then you know your compiler's screwed __________________ Just Google It. √ (\ /) ( . .) c(")(") This is bunny. Copy and paste bunny into your signature to help him gain world domination.
Hunter2 is offline

09-08-2004, 10:15 PM	#7
Ryback Registered User Join Date: Sep 2004 Posts: 3	Thanks all for the help. I found some more information. When I create my project in Visual Studio I am choosing a "Win32 Console Project". This is why the #include "stdafx.h" line is there (and cannot be removed). But the program does not work. But here is what else I discovered: if I instead create a "Console Application (.NET)" project, the program will work without any errors. Does anyone have experience with Visual Studio who can help? Thanks guys.
Ryback is offline

09-08-2004, 10:38 PM	#8
bithub Registered User Join Date: Sep 2004 Location: California Posts: 2,845	move the line #include "stdafx.h" To the top of your includes. stdafx.h must always be included first.
bithub is offline

09-09-2004, 01:34 AM	#10
Salem and the hat of vanishing Join Date: Aug 2001 Location: The edge of the known universe Posts: 21,214	> This is why the #include "stdafx.h" line is there Remove it, and then turn off "precompiled headers" in the project settings. __________________ If you dance barefoot on the broken glass of undefined behaviour, you've got to expect the occasional cut. Up to 8Mb PlusNet broadband from only £5.99 a month!
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09-09-2004, 05:48 AM	#11
big146 Registered User Join Date: Apr 2003 Posts: 74	If you want to run just a simple console app, select win32 >> then console project, when the application wizzard dialog pops up select application settings and then select Empty project. After the solution loads up right click source files and select add >> then new item >> from the list of templates select cpp. that will give you a project without the stdafx.h header files. then just add your code from the book. __________________ big146
big146 is offline

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