long double m;
cout << "enter double: "; cin >> m;
cout << "m = " << m <<endl;
Input:
enter double: 1.546640625
Output:
m = 1.54664
I have to convert into a binary with point, and when I read numbers like 2.359375000
Output:
m = 2.35938
And it works, but I think the problem is the zero in 1.546640625
You have read the whole value of the double. The problem is with the cout. It by default rounds the value to 6 digits after the decimal point.
To set the precision cout uses, use setprecision
from <iomanip>
:
#include <iostream>
#include <iomanip>
using namespace std;
int main() {
long double d;
cin >> d;
cout << setprecision(10) << d << endl;
return 0;
}
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