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structs
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@ -5,13 +5,14 @@
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// Execute `rustlings hint structs1` or use the `hint` watch subcommand for a
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// hint.
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// I AM NOT DONE
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struct ColorClassicStruct {
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// TODO: Something goes here
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red: u8,
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green: u8,
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blue: u8,
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}
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struct ColorTupleStruct(/* TODO: Something goes here */);
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struct ColorTupleStruct(u8, u8, u8);
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#[derive(Debug)]
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struct UnitLikeStruct;
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@ -23,7 +24,11 @@ mod tests {
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#[test]
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fn classic_c_structs() {
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// TODO: Instantiate a classic c struct!
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// let green =
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let green = ColorClassicStruct {
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red: 0,
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green: 255,
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blue: 0,
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};
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assert_eq!(green.red, 0);
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assert_eq!(green.green, 255);
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@ -33,7 +38,7 @@ mod tests {
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#[test]
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fn tuple_structs() {
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// TODO: Instantiate a tuple struct!
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// let green =
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let green = ColorTupleStruct(0, 255, 0);
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assert_eq!(green.0, 0);
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assert_eq!(green.1, 255);
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@ -43,7 +48,7 @@ mod tests {
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#[test]
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fn unit_structs() {
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// TODO: Instantiate a unit-like struct!
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// let unit_like_struct =
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let unit_like_struct = UnitLikeStruct;
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let message = format!("{:?}s are fun!", unit_like_struct);
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assert_eq!(message, "UnitLikeStructs are fun!");
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@ -5,7 +5,6 @@
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// Execute `rustlings hint structs2` or use the `hint` watch subcommand for a
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// hint.
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// I AM NOT DONE
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#[derive(Debug)]
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struct Order {
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@ -38,7 +37,15 @@ mod tests {
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fn your_order() {
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let order_template = create_order_template();
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// TODO: Create your own order using the update syntax and template above!
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// let your_order =
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let your_order = Order {
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name: "Hacker in Rust".to_string(),
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year: order_template.year,
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made_by_phone: order_template.made_by_phone,
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made_by_mobile: order_template.made_by_mobile,
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made_by_email: order_template.made_by_email,
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item_number: order_template.item_number,
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count: 1,
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};
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assert_eq!(your_order.name, "Hacker in Rust");
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assert_eq!(your_order.year, order_template.year);
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assert_eq!(your_order.made_by_phone, order_template.made_by_phone);
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@ -7,7 +7,6 @@
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// Execute `rustlings hint structs3` or use the `hint` watch subcommand for a
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// hint.
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// I AM NOT DONE
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#[derive(Debug)]
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struct Package {
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@ -31,12 +30,16 @@ impl Package {
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}
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}
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fn is_international(&self) -> ??? {
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// Something goes here...
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fn is_international(&self) -> bool {
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if self.sender_country == self.recipient_country {
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return false;
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}
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true
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}
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fn get_fees(&self, cents_per_gram: u32) -> ??? {
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// Something goes here...
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fn get_fees(&self, cents_per_gram: u32) -> u32 {
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self.weight_in_grams * cents_per_gram
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}
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}
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