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Mention meaning of asterisk. Explain *ref_var2

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Issue #1398
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Pushkar Sharma 2015-10-11 09:39:39 +05:30
parent 8592f26199
commit 2b8fe51af6
1 changed files with 2 additions and 2 deletions
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rust.html.markdown
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@ -287,9 +287,9 @@ fn main() {
// While a value is mutably borrowed, it cannot be accessed at all. // While a value is mutably borrowed, it cannot be accessed at all.
let mut var2 = 4; let mut var2 = 4;
let ref_var2: &mut i32 = &mut var2; let ref_var2: &mut i32 = &mut var2;
*ref_var2 += 2; *ref_var2 += 2; // '*' is used to point to the mutably borrowed var2
println!("{}", *ref_var2); // 6 println!("{}", *ref_var2); // 6 , //var2 would not compile. //ref_var2 is of type &mut i32, so //stores a reference to an i32 not the value.
// var2 = 2; // this would not compile because `var2` is borrowed // var2 = 2; // this would not compile because `var2` is borrowed
} }
``` ```