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move_semantics1 solution
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@ -1,3 +1,4 @@
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// TODO: Fix the compiler error in this function.
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fn fill_vec(vec: Vec<i32>) -> Vec<i32> {
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let vec = vec;
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@ -17,9 +18,7 @@ mod tests {
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#[test]
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fn move_semantics1() {
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let vec0 = vec![22, 44, 66];
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let vec1 = fill_vec(vec0);
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assert_eq!(vec1, vec![22, 44, 66, 88]);
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}
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}
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@ -342,8 +342,7 @@ error on the line where we push an element to the vector, right?
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The fix for this is going to be adding one keyword, and the addition is NOT on
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the line where we push to the vector (where the error is).
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Also: Try accessing `vec0` after having called `fill_vec()`. See what
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happens!"""
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Try accessing `vec0` after having called `fill_vec()`. See what happens!"""
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[[exercises]]
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name = "move_semantics2"
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@ -1 +1,25 @@
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// Solutions will be available before the stable release. Thank you for testing the beta version 🥰
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fn fill_vec(vec: Vec<i32>) -> Vec<i32> {
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let mut vec = vec;
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// ^^^ added
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vec.push(88);
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vec
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}
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fn main() {
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// You can optionally experiment here.
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}
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#[cfg(test)]
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mod tests {
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use super::*;
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#[test]
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fn move_semantics1() {
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let vec0 = vec![22, 44, 66];
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let vec1 = fill_vec(vec0);
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// `vec0` can't be accessed anymore because it is moved to `fill_vec`.
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assert_eq!(vec1, vec![22, 44, 66, 88]);
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}
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}
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