mirror of https://github.com/rust-lang/rust
63 lines
1.5 KiB
Rust
63 lines
1.5 KiB
Rust
fn foo() {
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let mut foo = [1, 2, 3, 4];
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let a = &mut foo[2];
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let b = &mut foo[3]; //~ ERROR cannot borrow `foo[_]` as mutable more than once at a time
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*a = 5;
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*b = 6;
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println!("{:?} {:?}", a, b);
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}
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fn bar() {
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let mut foo = [1,2,3,4];
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let a = &mut foo[..2];
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let b = &mut foo[2..]; //~ ERROR cannot borrow `foo` as mutable more than once at a time
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a[0] = 5;
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b[0] = 6;
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println!("{:?} {:?}", a, b);
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}
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fn baz() {
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let mut foo = [1,2,3,4];
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let a = &foo[..2];
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let b = &mut foo[2..]; //~ ERROR cannot borrow `foo` as mutable because it is also borrowed as immutable
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b[0] = 6;
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println!("{:?} {:?}", a, b);
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}
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fn qux() {
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let mut foo = [1,2,3,4];
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let a = &mut foo[..2];
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let b = &foo[2..]; //~ ERROR cannot borrow `foo` as immutable because it is also borrowed as mutable
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a[0] = 5;
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println!("{:?} {:?}", a, b);
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}
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fn bad() {
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let mut foo = [1,2,3,4];
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let a = &foo[1];
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let b = &mut foo[2]; //~ ERROR cannot borrow `foo[_]` as mutable because it is also borrowed as immutable
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*b = 6;
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println!("{:?} {:?}", a, b);
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}
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fn bat() {
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let mut foo = [1,2,3,4];
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let a = &mut foo[1];
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let b = &foo[2]; //~ ERROR cannot borrow `foo[_]` as immutable because it is also borrowed as mutable
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*a = 5;
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println!("{:?} {:?}", a, b);
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}
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fn ang() {
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let mut foo = [1,2,3,4];
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let a = &mut foo[0..];
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let b = &foo[0..]; //~ ERROR cannot borrow `foo` as immutable because it is also borrowed as mutable
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a[0] = 5;
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println!("{:?} {:?}", a, b);
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}
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fn main() {
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foo();
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bar();
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}
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