Foreach loop in C++ by R4R Team

In C++,
There are four types of loops:
 -for loop
-while loop
-do while loop
-foreach loop

Foreach loop:
 -Apart from other loop this loop is special kind of functionality.
-This loop is not present in C language.
-For each loop are used to iterate the sequence or collection like vectors.

Syntax-
for_each (InputIterator first, InputIterator last, Function fn)

program:

#include< iostream>
#include< algorithm>
using namespace std;
int func(int i)
{
cout<< i< }
int main()
{
int a[5]={1,2,3,4,5};
for_each(a,a+5,func);
return 0;
}


output-

1
2
3
4
5

-In this program, we print all value of array using for_each loop and func() function.
-It actually pass each element in function 'func()' then we do whatever we want to do with array.




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