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Update functions5.rs

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olivia hugger 2018-10-11 14:03:59 +02:00 committed by GitHub
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functions/functions5.rs
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@ -40,7 +40,7 @@ fn square(num: i32) -> i32 {
// This is a really common error that can be fixed by removing one character. // This is a really common error that can be fixed by removing one character.
// It happens because Rust distinguishes between expressions and statements: expressions return // It happens because Rust distinguishes between expressions and statements: expressions return
// a value based on its operand, and statements simply retun a () type which behaves just like `void` in C/C++ language. // a value based on its operand, and statements simply return a () type which behaves just like `void` in C/C++ language.
// We want to return a value of `i32` type from the `square` function, but it is returning a `()` type... // We want to return a value of `i32` type from the `square` function, but it is returning a `()` type...
// They are not the same. There are two solusions: // They are not the same. There are two solusions:
// 1. Add a `return` ahead of `num * num;` // 1. Add a `return` ahead of `num * num;`