Place values

[beginner at programming]

It prints 345 with no decimal;

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20

#include <iostream> using namespace std; double placevalue (double a) { double b = a * 100; int c = b; double d = c / 100; return (d); } int main () { double x = 345.2359745; double y; y = placevalue (x); cout << "#:" << y; cin.get(); return 0; }

#:345

[tummychow]

Change line 8 to
double d = c / 100.0;
100 is an integer. int / int = int. 100.0 is double. int / double = double.

[R0mai]

Let's end this

double truncate_to_two_decimal_places(double val) {
    return floor(val * 100.0) / 100.0;
}

[gcampton]

why has nobody stated the obvious yet?

double x= 345.2359745;

printf ("%0.3d", x);

it doesn't change the actual variable, but only chops off the end parts on output.

[tummychow]

I think the op wanted to change the actual thing though. setprecision was brought up in the beginning of the discussion.