Question

I have a simple program:

#include <stdio.h>
#include <iostream>

using namespace std;
int main(int argc, char **argv)
{

double i=0.000006;

printf("%lf\n",i);
cout <<i<<endl;

return 0;
}

the output of which is :

pearl.236> ./a.out
0.000006
6e-06
pearl.237> 

How can i achieve 0.000006 using the cout too?

the actual proble i have is i am redirecting this double to a string stream and later on i am printing it on screen.i want to know how we can store the actuall double representation inside the string stream.

Answer 1

Stream formatting is achieved with the help of manipulators.
The manipluators to specify standard and scientific notation are fixed and scientific.

cout << fixed <<i<<endl;