Fix warning when compilin libcore on 16bit targets.

vadzimdambrouski · vadzimdambrouski · commit f5c42655b597 · 2018-04-03T15:33:32.000+03:00
Fixes #49617
diff --git a/src/libcore/iter/range.rs b/src/libcore/iter/range.rs
@@ -488,6 +488,7 @@ macro_rules! try_from_unbounded {
 }
 
 // unsigned to signed (only positive bound)
+#[cfg(any(target_pointer_width = "32", target_pointer_width = "64"))]
 macro_rules! try_from_upper_bounded {
     ($($target:ty),*) => {$(
         impl PrivateTryFromUsize for $target {

Original file line number	Diff line number	Diff line change
`@@ -488,6 +488,7 @@ macro_rules! try_from_unbounded {`
`488`	`488`	`}`
`489`	`489`
`490`	`490`	`// unsigned to signed (only positive bound)`
	`491`	`+#[cfg(any(target_pointer_width = "32", target_pointer_width = "64"))]`
`491`	`492`	`macro_rules! try_from_upper_bounded {`
`492`	`493`	`($($target:ty),*) => {$(`
`493`	`494`	`impl PrivateTryFromUsize for $target {`