Use u32 instead of i32
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parent
464cb5566d
commit
9c0581bc0f
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@ -13,13 +13,15 @@
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struct Package {
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struct Package {
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sender_country: String,
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sender_country: String,
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recipient_country: String,
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recipient_country: String,
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weight_in_grams: i32,
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weight_in_grams: u32,
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}
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}
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impl Package {
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impl Package {
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fn new(sender_country: String, recipient_country: String, weight_in_grams: i32) -> Package {
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fn new(sender_country: String, recipient_country: String, weight_in_grams: u32) -> Package {
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if weight_in_grams <= 0 {
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if weight_in_grams < 10 {
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panic!("Can not ship a weightless package.")
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// This is not how you should handle errors in Rust,
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// but we will learn about error handling later.
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panic!("Can not ship a package with weight below 10 grams.")
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} else {
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} else {
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Package {
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Package {
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sender_country,
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sender_country,
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@ -33,7 +35,7 @@ impl Package {
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// Something goes here...
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// Something goes here...
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}
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}
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fn get_fees(&self, cents_per_gram: i32) -> ??? {
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fn get_fees(&self, cents_per_gram: u32) -> ??? {
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// Something goes here...
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// Something goes here...
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}
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}
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}
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}
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@ -48,7 +50,7 @@ mod tests {
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let sender_country = String::from("Spain");
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let sender_country = String::from("Spain");
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let recipient_country = String::from("Austria");
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let recipient_country = String::from("Austria");
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Package::new(sender_country, recipient_country, -2210);
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Package::new(sender_country, recipient_country, 5);
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}
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}
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#[test]
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#[test]
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