From 246f239d9f40f633160f0c18f87a20922d4e77bb Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Wed, 17 Apr 2024 14:06:37 +0200 Subject: Merging debian version 1.65.0+dfsg1-2. Signed-off-by: Daniel Baumann --- src/test/ui/btreemap/btreemap-index-mut.stderr | 19 +++++++++++++++++++ 1 file changed, 19 insertions(+) create mode 100644 src/test/ui/btreemap/btreemap-index-mut.stderr (limited to 'src/test/ui/btreemap/btreemap-index-mut.stderr') diff --git a/src/test/ui/btreemap/btreemap-index-mut.stderr b/src/test/ui/btreemap/btreemap-index-mut.stderr new file mode 100644 index 000000000..26f2a4c4b --- /dev/null +++ b/src/test/ui/btreemap/btreemap-index-mut.stderr @@ -0,0 +1,19 @@ +error[E0594]: cannot assign to data in an index of `BTreeMap` + --> $DIR/btreemap-index-mut.rs:5:5 + | +LL | map[&0] = 1; + | ^^^^^^^^^^^ cannot assign + | + = help: trait `IndexMut` is required to modify indexed content, but it is not implemented for `BTreeMap` +help: to modify a `BTreeMap`, use `.get_mut()`, `.insert()` or the entry API + | +LL | map.insert(&0, 1); + | ~~~~~~~~ ~ + +LL | map.get_mut(&0).map(|val| { *val = 1; }); + | ~~~~~~~~~ ~~~~~~~~~~~~~~~~~~ ++++ +LL | let val = map.entry(&0).or_insert(1); + | +++++++++ ~~~~~~~ ~~~~~~~~~~~~ + + +error: aborting due to previous error + +For more information about this error, try `rustc --explain E0594`. -- cgit v1.2.3