Question

How to create manipulator to output hexadecimal in c++

Answer 1

#include <iostream>
#include <iomanip> 

using namespace std;

ostream &showhex(ostream &stream)
{
	stream.setf(ios::showbase);
	stream.setf(ios::hex, ios::basefield);

	return stream;
}
int main()
{
	cout << 128 << " : " << showhex << 128 << endl;

	return 0;
}

/*
run:

128 : 0x80

*/

 

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