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
*/c++ class template
#include <vector>
// This is your own template
// T it's just a type
template <class T1, class T2, typename T3, typename T4 = int>
class MyClass
{
public:
MyClass() { }
private:
T1 data; // For example this data variable is T type
T2 anotherData; // Actually you can name it as you wish but
T3 variable; // for convenience you should name it T
}
int main(int argc, char **argv)
{
std::vector<int> array(10);
// ^^^
// This is a template in std library
MyClass<int> object();
// This is how it works with your class, just a template for type
// < > angle brackets means "choose" any type you want
// But it isn't necessary should work, because of some reasons
// For example you need a type that do not supporting with class
return (0);
}cpp how to create an object of template class
template class Graph<string>;template c++
template <class identifier> function_declaration;
template <typename identifier> function_declaration;
//Example:
template <class Type>
void Swap( Type &x, Type &y)
{
Type Temp = x;
x = y;
y = Temp;
}template c++
template <class myType>
myType GetMax (myType a, myType b) {
return (a>b?a:b);
}Copyright © 2021 Codeinu
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