Question

How to convert char digit to int in C++

Answer 1

#include <iostream>

using namespace std;

int main()
{
	char ch = '3';

	int n = ch - '0';

	cout << n << endl;

	return 0;
}

/*
run:

3

*/

 

70+ SQL courses for beginners and professionals

Answer 2

#include <iostream>

using namespace std;

int main()
{
	char ch = '5';

	int n = ch - 48;

	cout << n << endl;

	return 0;
}

/*
run:

5

*/

 

70+ SQL courses for beginners and professionals