c++ template function
template <class T>
void swap(T & lhs, T & rhs)
{
T tmp = lhs;
lhs = rhs;
rhs = tmp;
}c++ template function
template <class T>
void swap(T & lhs, T & rhs)
{
T tmp = lhs;
lhs = rhs;
rhs = tmp;
}c++ template
#include <iostream>
using namespace std;
template <typename T>
void Swap(T &n1, T &n2)
{
T temp;
temp = n1;
n1 = n2;
n2 = temp;
}
int main()
{
int i1 = 1, i2 = 2;
float f1 = 1.1, f2 = 2.2;
char c1 = 'a', c2 = 'b';
cout << "Before passing data to function template.\n";
cout << "i1 = " << i1 << "\ni2 = " << i2;
cout << "\nf1 = " << f1 << "\nf2 = " << f2;
cout << "\nc1 = " << c1 << "\nc2 = " << c2;
Swap(i1, i2);
Swap(f1, f2);
Swap(c1, c2);
cout << "\n\nAfter passing data to function template.\n";
cout << "i1 = " << i1 << "\ni2 = " << i2;
cout << "\nf1 = " << f1 << "\nf2 = " << f2;
cout << "\nc1 = " << c1 << "\nc2 = " << c2;
return 0;
}template function in C++
// template specialization
#include <iostream>
using namespace std;
// class template:
template <class T>
class mycontainer {
T element;
public:
mycontainer (T arg) {element=arg;}
T increase () {return ++element;}
};
// class template specialization:
template <>
class mycontainer <char> {
char element;
public:
mycontainer (char arg) {element=arg;}
char uppercase ()
{
if ((element>='a')&&(element<='z'))
element+='A'-'a';
return element;
}
};
int main () {
mycontainer<int> myint (7);
mycontainer<char> mychar ('j');
cout << myint.increase() << endl;
cout << mychar.uppercase() << endl;
return 0;
}use of template in c++
// If two characters are passed to function template, character with larger ASCII value is displayed.
#include <iostream>
using namespace std;
// template function
template <typename T>
T Large(T n1, T n2)
{
return (n1 > n2) ? n1 : n2;
}
int main()
{
int i1, i2;
float f1, f2;
char c1, c2;
cout << "Enter two integers:\n";
cin >> i1 >> i2;
cout << Large(i1, i2) <<" is larger." << endl;
cout << "\nEnter two floating-point numbers:\n";
cin >> f1 >> f2;
cout << Large(f1, f2) <<" is larger." << endl;
cout << "\nEnter two characters:\n";
cin >> c1 >> c2;
cout << Large(c1, c2) << " has larger ASCII value.";
return 0;
}Function Template in c++
// function template in c++
#include <iostream>
using namespace std;
float funAvg(int a, int b){
float avg = (a+b)/2.0;
return avg;
}
float funAvg2(int a, float b){
float avg2 = (a+b)/2.0;
return avg2;
}
//function template in c++
template<class T1 , class T2>
float fun(T1 a, T2 b){
float avg2 = (a+b)/2.0;
return avg2;
}
int main(){
float a;
a = funAvg(22 , 7);
printf("The average of these number is %.3f ",a);
cout<<endl;
float a1;
a1 = funAvg2(11 , 8.6);
printf("The average of these number is %.3f ",a1);
cout<<endl;
// float T;
// T = fun(11 , 8.6f);
// printf("The average of these number is %.3f ",T);
// cout<<endl;
// ---------------------function template in c++-----------------
float T;
T = fun(11 , 98);
printf("The average of these number is %.3f ",T);
return 0;
}function template c++
template<class T1 , class T2>
float fun(T1 a, T2 b){
float avg2 = (a+b)/2.0;
return avg2;
}Copyright © 2021 Codeinu
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