Programming Forums > Application Development > C++

darkone916 · Jul 30th, 2005, 1:41 PM

Hello...

i tried to use this code:

#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";
}

getline() gives these errors:

C:\C++\C++.cpp In function `int main()':

6 C:\C++\C++.cpp no matching function for call to `std::basic_istream<char, std::char_traits<char> >::getline(std::string&, int)'

note C:\Dev-Cpp\include\c++\3.4.2\bits\istream.tcc:582 candidates are: std::basic_istream<_CharT, _Traits>& std::basic_istream<_CharT, _Traits>::getline(_CharT*, std::streamsize, _CharT) [with _CharT = char, _Traits = std::char_traits<char>]

note C:\Dev-Cpp\include\c++\3.4.2\bits\istream.tcc:582 std::basic_istream<_CharT, _Traits>& std::basic_istream<_CharT, _Traits>::getline(_CharT*, std::streamsize) [with _CharT = char, _Traits = std::char_traits<char>]

In the other hand getline() works well with a variable decleared as char.

thank you 4 helping.

skuinders · Jul 30th, 2005, 1:45 PM

(Toggle Plain Text)

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

EverLearning · Jul 30th, 2005, 1:49 PM

If your heart is set on the getline(), then you should check it's prototype depending on library: either this or this .

darkone916 · Jul 30th, 2005, 1:51 PM

Thank you for helping... but using this code will take only the characters before the first space.
e.g. if i typed in :"The one and the only one...darkone." it will only take the "the".

thanx again.

Animatronic · Jul 30th, 2005, 1:52 PM

skuinders that will only read in one word not what darkone916 wanted.

@ darkone916 in <string> there's a more useful getline function, that you dont have to specify the length of the input:

(Toggle Plain Text)

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

This will read in the input up to a '\n'.

darkone916 · Jul 30th, 2005, 1:57 PM

Yep!!! it works!!!
thanx everyone!!!

The Cyndicate · Jul 30th, 2005, 1:59 PM

Nice job.. i making aprograms app of my own Very easy.. and debugg mod

OpenLoop · Jul 30th, 2005, 2:01 PM

Darkone, just a note, you can use "using namespace std;" instead of "std::bla" like his:

(Toggle Plain Text)

#include <iostream>
#include <string>
using namespace std;

int main()
{
   string quote;
   getline(cin, quote );
   if(quote=="The one and the only one...darkone.")
	 cout<<"\a";
}

skuinders · Jul 30th, 2005, 2:10 PM

woops sorry... I forgot about that :o

darkone916 · Jul 30th, 2005, 2:12 PM

Quote:

Darkone, just a note, you can use "using namespace std;" instead of "std::bla"

Does it have any side effects using "using namespace std; ?

Jul 30th, 2005, 1:41 PM	#1
darkone916 Hobbyist Programmer Join Date: Jul 2005 Location: Oman Posts: 125 Rep Power: 4	getline() while including <string.h> Hello... i tried to use this code: (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"; } getline() gives these errors: C:\C++\C++.cpp In function `int main()': 6 C:\C++\C++.cpp no matching function for call to `std::basic_istream<char, std::char_traits<char> >::getline(std::string&, int)' note C:\Dev-Cpp\include\c++\3.4.2\bits\istream.tcc:582 candidates are: std::basic_istream<_CharT, _Traits>& std::basic_istream<_CharT, _Traits>::getline(_CharT, std::streamsize, _CharT) [with _CharT = char, _Traits = std::char_traits<char>] note C:\Dev-Cpp\include\c++\3.4.2\bits\istream.tcc:582 std::basic_istream<_CharT, _Traits>& std::basic_istream<_CharT, _Traits>::getline(_CharT, std::streamsize) [with _CharT = char, _Traits = std::char_traits<char>] In the other hand getline() works well with a variable decleared as char. thank you 4 helping. __________________ From the bottom of the stone steps... ...i'm calling still.

Jul 30th, 2005, 1:45 PM	#2
skuinders Hobbyist Programmer Join Date: Jun 2005 Location: MA, US Posts: 204 Rep Power: 4	(Toggle Plain Text) #include <iostream> #include <string> int main() { std::string quote; std::cin >> quote; if(quote=="The one and the only one...darkone.") std::cout<<"\a"; } #include <iostream> #include <string> int main() { std::string quote; std::cin >> quote; if(quote=="The one and the only one...darkone.") std::cout<<"\a"; } __________________ "A stupid man's report of what a clever man says can never be accurate, because he unconciously translates what he hears into something he can understand." - B. Russell http://web.bryant.edu/~srk2

Jul 30th, 2005, 1:49 PM	#3
EverLearning Hobbyist Programmer Join Date: May 2005 Location: Indiana Posts: 130 Rep Power: 4	If your heart is set on the getline(), then you should check it's prototype depending on library: either this or this . __________________ got math? yumm... "All men by nature desire to know" -Aristotle, Metaphysics Last edited by EverLearning; Jul 30th, 2005 at 2:12 PM. Reason: note on libraries

Jul 30th, 2005, 1:51 PM	#4
darkone916 Hobbyist Programmer Join Date: Jul 2005 Location: Oman Posts: 125 Rep Power: 4	Thank you for helping... but using this code will take only the characters before the first space. e.g. if i typed in :"The one and the only one...darkone." it will only take the "the". thanx again. __________________ From the bottom of the stone steps... ...i'm calling still.

Jul 30th, 2005, 1:52 PM	#5
Animatronic Programmer Join Date: Jun 2005 Posts: 99 Rep Power: 4	skuinders that will only read in one word not what darkone916 wanted. @ darkone916 in <string> there's a more useful getline function, that you dont have to specify the length of the input: (Toggle Plain Text) #include <iostream> #include <string> int main() { std::string quote; std::getline( std::cin, quote ); if(quote=="The one and the only one...darkone.") std::cout<<"\a"; } #include <iostream> #include <string> int main() { std::string quote; std::getline( std::cin, quote ); if(quote=="The one and the only one...darkone.") std::cout<<"\a"; } This will read in the input up to a '\n'.

Jul 30th, 2005, 1:57 PM	#6
darkone916 Hobbyist Programmer Join Date: Jul 2005 Location: Oman Posts: 125 Rep Power: 4	Yep!!! it works!!! thanx everyone!!! __________________ From the bottom of the stone steps... ...i'm calling still.

Jul 30th, 2005, 1:59 PM	#7
The Cyndicate Newbie Join Date: Jul 2005 Posts: 3 Rep Power: 0	Nice job.. i making aprograms app of my own Very easy.. and debugg mod

Jul 30th, 2005, 2:01 PM	#8
OpenLoop Expert Programmer Join Date: May 2005 Location: East Lansing, MI Posts: 663 Rep Power: 4	Darkone, just a note, you can use "using namespace std;" instead of "std::bla" like his: (Toggle Plain Text) #include <iostream> #include <string> using namespace std; int main() { string quote; getline(cin, quote ); if(quote=="The one and the only one...darkone.") cout<<"\a"; } #include <iostream> #include <string> using namespace std; int main() { string quote; getline(cin, quote ); if(quote=="The one and the only one...darkone.") cout<<"\a"; }

Jul 30th, 2005, 2:10 PM	#9
skuinders Hobbyist Programmer Join Date: Jun 2005 Location: MA, US Posts: 204 Rep Power: 4	woops sorry... I forgot about that :o __________________ "A stupid man's report of what a clever man says can never be accurate, because he unconciously translates what he hears into something he can understand." - B. Russell http://web.bryant.edu/~srk2

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Programming Forums > Application Development > C++

getline() while including <string.h>