Basic templates

[Felicia123]

template< class T , class U ,class X >
void Printoutput( T value ,U value , X value  ){
	cout << value << value << value << endl;
}

int main(){
Printoutput("***",47,"***");
}

//Write a main() function that tests the function with char, int, double, and string arguments.   

err , which part i wrong at?

[Moeljbcp]

You can't have every single variable be named "value"? That'd be my first guess.

[Yezman]

You can't have every single variable be named "value"? That'd be my first guess.

I think the same thing.

When you say
cout << value << value << value << endl;

It won't know what value to cout?

(Comp sci student, but that seems like an issue from what I know)

[TheIdeasMan]

I know very little about templates, but do you need to create an object in main, to then access the Printoutput function?

[Felicia123]

here is my question

/*Write a code Symbolic.cpp that contains 
a function template to display a value preceded 
and followed by n elements of a symbol x on a line.  Write a main() function
 that tests the function with char, int, double, and string arguments.  

The output could be, for example:

***47***
00039.25000
aaaaBobaaaa*/

and here is my code

#include <iostream>
#include <string>

using namespace std;

template< class T , class U ,class X >
void Printoutput( T value ,U value2 , X value3  ){
	cout << value << value2 << value3 << endl;
}

int main(){

	Printoutput("***",47,"***");
	Printoutput("000",39.25,"000");
	Printoutput("aaaa","Bob","aaaa");

	system( "pause" );//system pause
	return 0;//Exit program
}

but from here . i know that my code didn't fullfill the question for
contains a function template to display a value preceded and followed by n elements of a symbol x on a line. . Not really get understand about the question. can someone help? thanks

[coder777]

contains a function template to display a value preceded and followed by n elements of a symbol x on a line.

It'd look like this:

template< class T >
void Printoutput( T value , char symbol_before_and_after_value, int how_often_the_symbol_is_repeated){
	// insert the first loop for outputting the symbol here
	cout << value;
	// insert the second loop for outputting the symbol here
	cout << endl;
}

The call would look like this:

Printoutput(47,'*', 3);

[Felicia123]

template< class T , class U ,class X >
void Printoutput( T value ,U elements , X timesRepeated  ){
	for( int i = 0 ; i < timesRepeated ; i++ )
		cout << elements ;
	cout << value;
	for( int i = 0 ; i < timesRepeated ; i++ )
		cout << elements;
	cout << endl;
}

int main(){

	Printoutput(47,'*',3);
	Printoutput(39.25,0,3);
	Printoutput("Bob",'a',4);

	system( "pause" );//system pause
	return 0;//Exit program
}

am i right?
after observe it , templates quite usefull!