format a double

[tougo]

how can i force a string when converting it to double not to lose it's initial format? (the sting source is a textbox)
what do i mean by that. i have a value +3456,9800 and by converting it to double i get a 3456,98
is there a way to keep the following zeros as well as the plus sign? the need of this, to me, is that i want the same length of characters in each value for a saving in a specific format

 

[qednick]

use the [tt]sprintf()[/tt] function on a string - you can format it any way you like.

^{programmer (prog'ram'er), n A hot-headed, anorak wearing, pimple-faced computer geek.}​

 

[BoulderBum]

Option 2 using new standards:

#include<iostream>
using std::cout;
using std::endl;
using std::ios;

#include<iomanip>
using std::setiosflags;
using std::resetiosflags;

int main()
{
double d = atof( &quot;86.8400&quot; );

cout << setiosflags( ios::showpoint ) << d << endl;
cout << resetiosflags( ios::showpoint ) << d << endl;

return 0;
}