code. compile. run. debug. share.
#include <iostream>
#include<map>
#include<string>
#include<vector>
template<typename T, std::size_t N>
//---------------------v--------------->type of elements inside array named arr
std::size_t getLength(const T (&arr)[N])
//------------------------------^------>length of the array
{
return N ;
}
int main()
{
int arr[] = {1,2,3};
std::cout<<getLength(arr)<<std::endl;
std::string arr2[] = {"a", "b"};
std::cout<<getLength(arr2)<<std::endl;
return 0;
}
Compiling Program...
Standard Input:
Interactive Console
Text
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