Question

How to use function for cout in C++

Answer 1

#include <iostream>

using std::cout;
using std::endl;
using std::ostream;
using std::ios;

ostream &scientific(ostream &stream)
{
	stream.setf(ios::scientific | ios::uppercase);

	return stream;
}

int main()
{
	double d = 321.875;

	cout << scientific << d << endl;

	return 0;
}



/*
run:

3.218750E+02

*/

 

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