format number

hi everyone,
i have a simple question because i'm a newbie in c programming. i need to format a double to a currency like number : something like 11.00. How can I do this?

also, i'm trying to print a double to the screen but it's not displaying correctly. here is my code:

printf ("sInt = %lf\n", &sInt); //this always display 0.0000000 instead of the correct number.

Thanks a lot

Why are you trying to print it's address as a float? Do not use & when using printf.

Quzah.

Yes, in the function printf, you pass by value, not reference (&). You need not to change the variable just work with the value.

This would be one of the first things in just about all tutorials and most books that you would learn. Check out a few tutorial sites, It really helps.

Here's an example of rounding to two decimal places.

double d = 1.23456789;
//either
printf("%.2lf\n",d);
//or this
printf("%5.2lf\n",d);