Question

How to pass int array to function as a pointer in C++

Answer 1

#include <iostream>

using std::cout;
using std::endl;

void print(const int* const arr, const int TOTAL) {
	for (int i = 0; i < TOTAL; i++)
		cout << arr[i] << endl;
}

int main()
{
	const int TOTAL = 3;
	int arr[TOTAL] = { 123, 21, 99 };

	print(arr, TOTAL);
	
	return 0;
}

/*
run:

123
21
99

*/

 

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Answer 2

#include <iostream>

using std::cout;
using std::endl;

void print(const int* const p, const int TOTAL) {
	for (int i = 0; i < TOTAL; i++)
		cout << *(p + i) << endl;
}

int main()
{
	const int TOTAL = 3;
	int arr[TOTAL] = { 123, 21, 99 };

	print(arr, TOTAL);
	
	return 0;
}

/*
run:

123
21
99

*/

 

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