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;
}function template
template <class T>
void swap(T & lhs, T & rhs)
{
T tmp = lhs;
lhs = rhs;
rhs = tmp;
}
void main()
{
int a = 6;
int b = 42;
swap<int>(a, b);
printf("a=%d, b=%d\n", a, b);
// Implicit template parameter deduction
double f = 5.5;
double g = 42.0;
swap(f, g);
printf("f=%f, g=%f\n", f, g);
}
/*
Output:
a=42, b=6
f=42.0, g=5.5
*/cpp how to create an object of template class
template class Graph<string>;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;
}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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