Fixes #28.

Alexhuszagh · Alexhuszagh · commit 2951215385ae · 2021-06-20T12:07:37.000-05:00
diff --git a/src/common.rs b/src/common.rs
@@ -75,7 +75,8 @@ impl<'a> AsciiStr<'a> {
 
     #[inline]
     pub fn check_len(&self, n: usize) -> bool {
-        unsafe { self.ptr.add(n) <= self.end }
+        let len = self.end as usize - self.ptr as usize;
+        n <= len
     }
 
     #[inline]

Original file line number	Diff line number	Diff line change
`@@ -75,7 +75,8 @@ impl<'a> AsciiStr<'a> {`
`75`	`75`
`76`	`76`	`#[inline]`
`77`	`77`	`pub fn check_len(&self, n: usize) -> bool {`
`78`		`- unsafe { self.ptr.add(n) <= self.end }`
	`78`	`+ let len = self.end as usize - self.ptr as usize;`
	`79`	`+ n <= len`
`79`	`80`	`}`
`80`	`81`
`81`	`82`	`#[inline]`