C / C + + rounding function: round function

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#include<iostream>
#include<cmath>
using namespace std;

int main(){
	cout<<"round(1.3) = "<<round(1.3)<<endl
		<<"round(1.5) = "<<round(1.5)<<endl
		<<"round(-1.3) = "<<round(-1.3)<<endl
		<<"round(-1.5) = "<<round(-1.5)<<endl;
	return 0;
}


this function takes the form of

double round(double d);

> > > > > > > > > > cmath>


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