Question

How to use cout manipulator to set hex output with uppercase in C++

Answer 1

#include <iostream>

using namespace std;

ostream &sethex(ostream &stream)
{
	stream.unsetf(ios::dec | ios::oct);
	stream.setf(ios::hex | ios::uppercase | ios::showbase);

	return stream;
}

ostream &noset(ostream &stream)
{
	stream.unsetf(ios::hex | ios::uppercase | ios::showbase);
	stream.setf(ios::dec);

	return stream;
}

int main()
{
	cout << sethex << 65 << endl;
	cout << noset << 65 << endl;

	return 0;
}


/*
run:

0X41
65

*/

 

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