Question

How to use showpos cout format flag to set the plus sign (+) for non-negative numbers in C++

Answer 1

#include <iostream>

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

int main()
{
	cout.setf(std::ios::showpos);

	cout << 31 << ' ' << -31 << endl;

	return 0;
}

/*
run:

+31 -31

*/

 

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