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-rw-r--r--src/doc/trpl/compound-data-types.md14
1 files changed, 14 insertions, 0 deletions
diff --git a/src/doc/trpl/compound-data-types.md b/src/doc/trpl/compound-data-types.md
index 8b99278acb1..51a4edbdac8 100644
--- a/src/doc/trpl/compound-data-types.md
+++ b/src/doc/trpl/compound-data-types.md
@@ -72,6 +72,20 @@ if x == y {
 
 This will print `no`, because some of the values aren't equal.
 
+Note that the order of the values is considered when checking for equality,
+so the following example will also print `no`.
+
+```rust
+let x = (1, 2, 3);
+let y = (2, 1, 3);
+
+if x == y {
+    println!("yes");
+} else {
+    println!("no");
+}
+```
+
 One other use of tuples is to return multiple values from a function:
 
 ```rust