Copy may_have_side_effect from I for Copied<I>

LunaBorowska · LunaBorowska · commit 431968df376a · 2018-12-05T16:42:20.000+01:00
diff --git a/src/libcore/iter/mod.rs b/src/libcore/iter/mod.rs
@@ -590,7 +590,9 @@ unsafe impl<'a, I, T: 'a> TrustedRandomAccess for Copied<I>
     }
 
     #[inline]
-    fn may_have_side_effect() -> bool { false }
+    fn may_have_side_effect() -> bool {
+        I::may_have_side_effect()
+    }
 }
 
 #[unstable(feature = "iter_copied", issue = "0")]

Original file line number	Diff line number	Diff line change
`@@ -590,7 +590,9 @@ unsafe impl<'a, I, T: 'a> TrustedRandomAccess for Copied<I>`
`590`	`590`	`}`
`591`	`591`
`592`	`592`	`#[inline]`
`593`		`- fn may_have_side_effect() -> bool { false }`
	`593`	`+ fn may_have_side_effect() -> bool {`
	`594`	`+ I::may_have_side_effect()`
	`595`	`+ }`
`594`	`596`	`}`
`595`	`597`
`596`	`598`	`#[unstable(feature = "iter_copied", issue = "0")]`