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How To Capitalize ALL Letters using Toupper function

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Join Date: Oct 2009

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EngneerNitemare EngneerNitemare is offline

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How To Capitalize ALL Letters using Toupper function

Oct 14th, 2009

I have the following code which I have been trying get to output ALL capital letters using the toupper function.

My code will build successfully, however all the letters are still lower case when ever I type.

PLEASE HELP ME UNDERSTAND WHAT I AM DOING WRONG!

The following is the code I have gotten to so far, but I need to know where to place the toupper function. Everytime I try to associate it with char c I do something wrong.
-------------------------------------------------------------------------------------------

 Help with Code Tags 
 cpp Syntax (Toggle Plain Text) 
#include <stdio.h>
#include <iostream>
using namespace std;
 
int main (int argc, char *argv[], char **env)
{
	char c, lastc = ' ' ;
	c = cin.get() ;
	do {
		cout.put(c) ;
 
                c = cin.get() ;
	} while ( !cin.eof()) ;
	return 0;
}
#include <stdio.h>
#include <iostream>
using namespace std;

int main (int argc, char *argv[], char **env)
{
	char c, lastc = ' ' ;
	c = cin.get() ;
	do {
		cout.put(c) ;
		
                c = cin.get() ;
	} while ( !cin.eof()) ;
	return 0;
}

Last edited by WaltP; Oct 15th, 2009 at 11:09 pm. Reason: Added CODE tags -- with all the help about them, how could you miss using them????

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Ancient Dragon Ancient Dragon is offline

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-7

Oct 14th, 2009

c = toupper(cin.get());
Or you could just do this:
cout << toupper(c);

Last edited by Ancient Dragon; Oct 14th, 2009 at 11:57 pm.

Don't PM me with questions -- you might get a nasty PM in response. If you have a question then post it in one of the forums.

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Oct 15th, 2009

 Help with Code Tags 
 cpp Syntax (Toggle Plain Text) 
#include <stdio.h>
#include <iostream>
using namespace std;
 
int main (int argc, char *argv[], char **env)
{
	char c, lastc = ' ' ;
	[B]c = toupper(cin.get());[/B]
	do {
		cout.put(c) ;
		c = cin.get() ;
	} while ( !cin.eof()) ;
	return 0;
}
#include <stdio.h>
#include <iostream>
using namespace std;

int main (int argc, char *argv[], char **env)
{
	char c, lastc = ' ' ;
	[B]c = toupper(cin.get());[/B]
	do {
		cout.put(c) ;
		c = cin.get() ;
	} while ( !cin.eof()) ;
	return 0;
}

Changed code,added "c = toupper(cin.get());" I believe I have tried this one before too. The program is still just simply typing out lowercase letters only!!!

This one is really frustrating me, I think that I am thinking too hard about it though.

Any other pointers???

Last edited by WaltP; Oct 15th, 2009 at 11:11 pm. Reason: And again, Added CODE tags -- look them up!

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Join Date: Oct 2006

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niek_e

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Cenosillicaphobiac

Oct 15th, 2009

Remove that line again and put it inside your loop. Put a cout << c; inside your loop and remove the other cin/cout statements.
So your loop-block should look like this:

 Help with Code Tags 
 C++ Syntax (Toggle Plain Text) 
{
    c = toupper(cin.get());
    cout << c;
}
{
    c = toupper(cin.get());
    cout << c;
}

also code-tags. Learn to use them.

Last edited by niek_e; Oct 15th, 2009 at 3:43 am.

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tkud

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Junior Poster in Training

-1

Oct 15th, 2009

You can also use this code snippet if you are confused..
char response[256];
cout<<"Enter a word.."<<endl;
---------------------------------------------
<cin.getline(response,256);
for(int i=0;i<response.length();i++){
response[i]=toupper(response[i]);
}>
-----------------------------------
This code converts 'response' to capital letters.
This is just for the knowing,anyway.

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niek_e

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Cenosillicaphobiac

Oct 15th, 2009

Or a real C++ solution:

 Help with Code Tags 
 C++ Syntax (Toggle Plain Text) 
#include <iostream>
#include <algorithm>
#include <string>
 
struct upper {
  int operator() ( int c )  
  {
      return toupper ( static_cast<unsigned char> ( c ) );
  }
 
};
 
int main(){
    std::string str = "";
    std::getline(std::cin, str);
    std::transform(str.begin(),str.end(),str.begin(),upper());
    std::cout << str;
    return 0;
}
#include <iostream>
#include <algorithm>
#include <string>

struct upper {
  int operator() ( int c )  
  {
      return toupper ( static_cast<unsigned char> ( c ) );
  }
  
};

int main(){
    std::string str = "";
    std::getline(std::cin, str);
    std::transform(str.begin(),str.end(),str.begin(),upper());
    std::cout << str;
    return 0;
}