What needs to be fixed?
Disclaimer: I am a complete newbie to Rust, so I might be missing something.
I am following the Rust by Example Guide and got stuck on 1.2.3 - Hello World/Formatted print/Formatting, because the HEX code I was supposed to print out was padded using spaces instead of 0s, when following the second hint at the bottom of the page: You can pad with zeros to a with of 2 with :02.
After some googling, I found out that it actually is :0>2 instead of :02.
As said before, I might be missing something, but in my code (which I'll include below), :02 does not work.
#[derive(Debug)]
struct Color {
red: u8,
green: u8,
blue: u8,
}
impl Display for Color {
fn fmt(&self, f: &mut Formatter) -> fmt::Result {
let red_hex = format!("{:X}", self.red);
let green_hex = format!("{:X}", self.green);
let blue_hex = format!("{:X}", self.blue);
write!(f, "RGB ({red}, {green}, {blue}) 0x{redHex:0>2}{greenHex:0>2}{blueHex:0>2}",
red = self.red,
green = self.green,
blue = self.blue,
redHex = red_hex,
greenHex = green_hex,
blueHex = blue_hex)
}Page(s) Affected
Rust by Example, 1.2.3: Formatting (https://doc.rust-lang.org/rust-by-example/hello/print/fmt.html)
What needs to be fixed?
Disclaimer: I am a complete newbie to Rust, so I might be missing something.
I am following the Rust by Example Guide and got stuck on
1.2.3 - Hello World/Formatted print/Formatting, because the HEX code I was supposed to print out was padded using spaces instead of 0s, when following the second hint at the bottom of the page:You can pad with zeros to a with of 2 with :02.After some googling, I found out that it actually is
:0>2instead of:02.As said before, I might be missing something, but in my code (which I'll include below),
:02does not work.Page(s) Affected
Rust by Example, 1.2.3: Formatting (https://doc.rust-lang.org/rust-by-example/hello/print/fmt.html)