diff --git a/src/commonargcmd.rs b/src/commonargcmd.rs
index 2e2c890..80fd9a9 100644
--- a/src/commonargcmd.rs
+++ b/src/commonargcmd.rs
@@ -45,7 +45,7 @@ pub fn keyword_or_command(
 	if horizon[i] == b'(' {
 		return WhatNow{
 			tri: Transition::Push(Box::new(SitNormal{
-				end_trigger: b')' as u16, end_replace: None
+				end_trigger: u16::from(b')'), end_replace: None
 			})), pre: i, len: 1, alt: None
 		};
 	}
@@ -174,7 +174,7 @@ pub fn common_no_cmd_quoting_unneeded(
 			if horizon[i] == b'`' {
 				return Some(Ok(WhatNow{
 					tri: Transition::Push(Box::new(SitNormal{
-						end_trigger: b'`' as u16, end_replace: None
+						end_trigger: u16::from(b'`'), end_replace: None
 					})), pre: i, len: 1, alt: None
 				}))
 			}
@@ -213,7 +213,7 @@ fn find_usual_suspects(
 	is_horizon_lengthenable :bool,
 ) -> Option<ParseResult> {
 	let a = horizon[i];
-	if a as u16 == end_trigger {
+	if u16::from(a) == end_trigger {
 		return Some(Ok(WhatNow{
 			tri: Transition::Pop, pre: i, len: 0, alt: None
 		}));
diff --git a/src/commonstrcmd.rs b/src/commonstrcmd.rs
index 4945a57..bfbf80a 100644
--- a/src/commonstrcmd.rs
+++ b/src/commonstrcmd.rs
@@ -40,7 +40,7 @@ pub fn common_str_cmd(
 ) -> CommonStrCmdResult {
 	if horizon[i] == b'`' {
 		let cmd = Box::new(SitNormal{
-			end_trigger: b'`' as u16, end_replace: Some(b")"),
+			end_trigger: u16::from(b'`'), end_replace: Some(b")"),
 		});
 		return CommonStrCmdResult::OnlyWithQuotes(WhatNow{
 			tri: Transition::Push(cmd), pre: i, len: 1, alt: Some(b"$(")
@@ -99,7 +99,7 @@ pub fn common_str_cmd(
 		}
 
 		let sit = Box::new(SitNormal{
-			end_trigger: b')' as u16, end_replace: None,
+			end_trigger: u16::from(b')'), end_replace: None,
 		});
 		return CommonStrCmdResult::OnlyWithQuotes(WhatNow{
 			tri: Transition::Push(sit),
diff --git a/src/sitcmd.rs b/src/sitcmd.rs
index 2fc1ff2..0d2300a 100644
--- a/src/sitcmd.rs
+++ b/src/sitcmd.rs
@@ -31,7 +31,7 @@ impl Situation for SitNormal {
 			if is_whitespace(a) || a == b';' || a == b'|' || a == b'&' || a == b'<' || a == b'>' {
 				continue;
 			}
-			if a as u16 == self.end_trigger {
+			if u16::from(a) == self.end_trigger {
 				return Ok(WhatNow{
 					tri: Transition::Pop, pre: i, len: 1,
 					alt: self.end_replace
diff --git a/src/sitrvalue.rs b/src/sitrvalue.rs
index 1669629..6b902c3 100644
--- a/src/sitrvalue.rs
+++ b/src/sitrvalue.rs
@@ -51,7 +51,7 @@ struct SitArray {}
 impl Situation for SitArray {
 	fn whatnow(&mut self, horizon: &[u8], is_horizon_lengthenable: bool) -> ParseResult {
 		for (i, _) in horizon.iter().enumerate() {
-			if let Some(res) = common_no_cmd(b')' as u16, horizon, i, is_horizon_lengthenable) {
+			if let Some(res) = common_no_cmd(u16::from(b')'), horizon, i, is_horizon_lengthenable) {
 				return res;
 			}
 		}
diff --git a/src/sitstrphantom.rs b/src/sitstrphantom.rs
index a119056..e618a48 100644
--- a/src/sitstrphantom.rs
+++ b/src/sitstrphantom.rs
@@ -31,7 +31,7 @@ impl Situation for SitStrPhantom {
 			if is_horizon_lengthenable {
 				return Ok(flush(0));
 			}
-		} else if horizon[mouthful] as u16 != self.cmd_end_trigger {
+		} else if u16::from(horizon[mouthful]) != self.cmd_end_trigger {
 			match horizon[mouthful] {
 				b'\"' => {
 					return Ok(WhatNow{