Programming Forums > Application Development > C++

DaWei · Aug 2nd, 2005, 1:38 PM

Let's just back off to your original post, for a second.

#include <iostream.h>
#include <string.h>
int main()
{
    std::string quote;
    std::cin.getline(quote,50);
    if(quote=="The one and the only one...darkone.")
    std::cout<<"\a";
}

Don't use the .h versions of the include files. They were made for backward compatibility and have been deprecated.

Namespaces are provided so that you may distinguish between two entities with the same name. Possibly you know more than one person named Bob. There's geek::Bob and there's father::Bob, your priest. The portion preceding the "::" is the qualifier that allows you distinguish. You have defined "quote" as being of type "string". There may well be more than one defined type, "string". Consequently, you have said, it's a std::string. If you think you're going to be hanging around church and no geeks will be present, you can just make a mental note: "using namespace church", and not have to say father::Bob, just Bob. You just want to be careful where you declare which namespace you're using. If you put, "using namespace church" on a sign on your back and go to a geek's convention, you aren't going to be able to get geek::Bob's attention or else, if father::Bob is there, you may get a conflict when they BOTH answer you.

There are also more than one "getline" function. The appropriate one will be called if you include the correct files and if you express the parameters correctly.

If you are still having difficulties getting your program to run, please repost your CURRENT code and the error messages you are CURRENTLY getting. Sorry to confuse you with too many caveats and technical points for the small program you have presented.

darkone916 · Aug 2nd, 2005, 1:45 PM

no need to say sorry!!!
ur explanation is cool thanx!

Cerulean · Aug 2nd, 2005, 2:37 PM

Quote:

By the way you have to admit "gimp" is a horrible name for a piece of software.

Heh, totally. Anyone who I mention it to who has watched Pulp Fiction gets a little scared of me..

Berto · Aug 3rd, 2005, 2:14 AM

Gimp = male sex slave.

The gimp in pulp fiction just sorta stands there :/

DaWei · Aug 3rd, 2005, 5:59 AM

And all this time I thought, "average man = male sex slave"

.

MrSmiley · Aug 4th, 2005, 12:19 PM

InfoGeek, props... I have a question, it's just a rumor I heard, but doesn't "using namespace xyz;" bog down the ram a little more than "using xyz:abc;"? i.e. "using namspace std;" uses more ram than "using std::cout;". Just a rumour I picked up one day of trolling the internet.

prolog · Aug 4th, 2005, 12:46 PM

The only thing i could imagine where a bigger amount of ram is taken by using the using-directive is during compilation as you import all symbols of that namespace.

InfoGeek · Aug 5th, 2005, 6:56 AM

Quote:

Originally Posted by MrSmiley

InfoGeek, props... I have a question, it's just a rumor I heard, but doesn't "using namespace xyz;" bog down the ram a little more than "using xyz:abc;"? i.e. "using namspace std;" uses more ram than "using std::cout;". Just a rumour I picked up one day of trolling the internet.

I think prolog answered that...

Ooble · Aug 7th, 2005, 10:46 AM

Quote:

Originally Posted by Cerulean

Heh, totally. Anyone who I mention it to who has watched Pulp Fiction gets a little scared of me..

Every time I hear the name it reminds me of that movie. I can't use it any more. :p

mikaoj · Aug 8th, 2005, 3:15 AM

Many programmers use std::cin, etc.
Also many from Norway use it.
It must be easier to just write using namespace std; and forget the std::cin.
Why are all doing this?

Aug 2nd, 2005, 1:38 PM	#31
DaWei Resident Grouch Join Date: Jun 2005 Posts: 6,453 Rep Power: 10	Let's just back off to your original post, for a second. (Toggle Plain Text) #include <iostream.h> #include <string.h> int main() { std::string quote; std::cin.getline(quote,50); if(quote=="The one and the only one...darkone.") std::cout<<"\a"; } #include <iostream.h> #include <string.h> int main() { std::string quote; std::cin.getline(quote,50); if(quote=="The one and the only one...darkone.") std::cout<<"\a"; } Don't use the .h versions of the include files. They were made for backward compatibility and have been deprecated. Namespaces are provided so that you may distinguish between two entities with the same name. Possibly you know more than one person named Bob. There's geek::Bob and there's father::Bob, your priest. The portion preceding the "::" is the qualifier that allows you distinguish. You have defined "quote" as being of type "string". There may well be more than one defined type, "string". Consequently, you have said, it's a std::string. If you think you're going to be hanging around church and no geeks will be present, you can just make a mental note: "using namespace church", and not have to say father::Bob, just Bob. You just want to be careful where you declare which namespace you're using. If you put, "using namespace church" on a sign on your back and go to a geek's convention, you aren't going to be able to get geek::Bob's attention or else, if father::Bob is there, you may get a conflict when they BOTH answer you. There are also more than one "getline" function. The appropriate one will be called if you include the correct files and if you express the parameters correctly. If you are still having difficulties getting your program to run, please repost your CURRENT code and the error messages you are CURRENTLY getting. Sorry to confuse you with too many caveats and technical points for the small program you have presented. __________________ Abstraction doesn't make it impossible to write bad code; it makes it possible to write superior code. Contributor's Corner: Grumpy on C++ Exceptions DaWei on Pointers

Aug 2nd, 2005, 1:45 PM	#32
darkone916 Hobbyist Programmer Join Date: Jul 2005 Location: Oman Posts: 125 Rep Power: 4	no need to say sorry!!! ur explanation is cool thanx! __________________ From the bottom of the stone steps... ...i'm calling still.

Aug 3rd, 2005, 2:14 AM	#34
Berto Programming Guru Join Date: Aug 2004 Posts: 1,022 Rep Power: 6	Gimp = male sex slave. The gimp in pulp fiction just sorta stands there :/ __________________ "Put your hand on a hot stove for a minute, and it seems like an hour. Sit with a pretty girl for an hour, and it seems like a minute. THAT'S relativity." - Albert Einstein

Aug 3rd, 2005, 5:59 AM	#35
DaWei Resident Grouch Join Date: Jun 2005 Posts: 6,453 Rep Power: 10	And all this time I thought, "average man = male sex slave" . __________________ Abstraction doesn't make it impossible to write bad code; it makes it possible to write superior code. Contributor's Corner: Grumpy on C++ Exceptions DaWei on Pointers

Aug 4th, 2005, 12:46 PM	#37
prolog Programmer Join Date: Jul 2005 Location: Germany Posts: 69 Rep Power: 4	The only thing i could imagine where a bigger amount of ram is taken by using the using-directive is during compilation as you import all symbols of that namespace. __________________ -= C makes it easy to shoot yourself in the foot; C++ makes it harder, but when you do succeed, you will blow away your whole leg. =- Bjarne Stroustrup

Aug 4th, 2005, 12:19 PM	#36
MrSmiley Programmer Join Date: May 2005 Posts: 41 Rep Power: 0	InfoGeek, props... I have a question, it's just a rumor I heard, but doesn't "using namespace xyz;" bog down the ram a little more than "using xyz:abc;"? i.e. "using namspace std;" uses more ram than "using std::cout;". Just a rumour I picked up one day of trolling the internet.

Aug 8th, 2005, 3:15 AM	#40
mikaoj Programmer Join Date: Aug 2005 Location: Norway Posts: 56 Rep Power: 0	Many programmers use std::cin, etc. Also many from Norway use it. It must be easier to just write using namespace std; and forget the std::cin. Why are all doing this? __________________ Heh.

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Programming Forums > Application Development > C++

getline() while including <string.h>