Rollup merge of rust-lang#100203 - compiler-errors:command-args-size-hint, r=m-ou-se

matthiaskrgr · web-flow · commit bd64d67d11ce · 2022-08-11T22:53:04.000+02:00
provide correct size hint for unsupported platform `CommandArgs` Split from rust-lang#99880 (comment)
diff --git a/library/std/src/sys/unsupported/process.rs b/library/std/src/sys/unsupported/process.rs
@@ -200,6 +200,9 @@ impl<'a> Iterator for CommandArgs<'a> {
     fn next(&mut self) -> Option<&'a OsStr> {
         None
     }
+    fn size_hint(&self) -> (usize, Option<usize>) {
+        (0, Some(0))
+    }
 }
 
 impl<'a> ExactSizeIterator for CommandArgs<'a> {}

Original file line number	Diff line number	Diff line change
`@@ -200,6 +200,9 @@ impl<'a> Iterator for CommandArgs<'a> {`
`200`	`200`	`fn next(&mut self) -> Option<&'a OsStr> {`
`201`	`201`	`None`
`202`	`202`	`}`
	`203`	`+ fn size_hint(&self) -> (usize, Option<usize>) {`
	`204`	`+ (0, Some(0))`
	`205`	`+ }`
`203`	`206`	`}`
`204`	`207`
`205`	`208`	`impl<'a> ExactSizeIterator for CommandArgs<'a> {}`