Function templates help!!

[david810376]

I need to write a function templates that can find 3 int,float,char,and strings long but when I use strlen or sizeof try to find the long but it doesnot work it just print out the second word

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

template <typename T>
T getMax(T v1,T v2,T v3)
{
	if(v1>v2 && v1>v3)
	{
		return v1;
	}
	else if(v2>v3)
	{
		return v2;
	}
	else
	{
		return v3;
	}
	
}
int main()
{
	int a,b,c;
	float a1,b1,c1;
	char a2,b2,c2;
	string a3="Yi",b3="yile",c3="hello";
	cout<<"Enter 3 value: \n";
	cin>>a>>b>>c;
	cout<<"Enter 3 floats:\n";
	cin>>a1>>b1>>c1;
	cout<<"Enter 3 chars:\n";
	cin>>a2>>b2>>c2;
	cout<<"Enter 3 strings:\n";
	cout<<"The biggest value is: "<<getMax(a,b,c)<<endl;
	cout<<"The biggest floats is: "<<getMax(a1,b1,c1)<<endl;
	cout<<"The biggest chars is: "<<getMax(a2,b2,c2)<<endl;
	sizeof a3;
	sizeof b3;
	sizeof c3;
	cout<<"The biggest chars is: "<<getMax(a3,b3,c3)<<endl;
	system("pause");
}

[Peter87]

I'm not sure I understand your problem. "yile" is considered the biggest string value because the comparison is using the lexicographical order. Simply put you can say that "yile" is biggest because 'y' has a bigger ASCII code than 'Y' and 'h'.

http://en.cppreference.com/w/cpp/string/basic_string/operator_cmp
http://en.cppreference.com/w/cpp/algorithm/lexicographical_compare

If you want the strings to be compared in some other way you might want to specialize the function template for the string type.