format number

[Unregistered]

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

[quzah]

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

Quzah.

[Garfield]

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

[jonnie75]

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.

[swoopy]

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);