fix(cast): correct max_int boundary check for uint255 (foundry-rs#13568)

zeroprooff · web-flow · commit d41efa28fb84 · 2026-03-01T18:16:23.000+09:00
diff --git a/crates/cast/src/lib.rs b/crates/cast/src/lib.rs
@@ -1158,7 +1158,7 @@ impl SimpleCast {
             DynSolType::Uint(n) => {
                 if MAX {
                     let mut max = U256::MAX;
-                    if n < 255 {
+                    if n < 256 {
                         max &= U256::from(1).wrapping_shl(n).wrapping_sub(U256::from(1));
                     }
                     Ok(max.to_string())

Original file line number	Diff line number	Diff line change
`@@ -1158,7 +1158,7 @@ impl SimpleCast {`
`1158`	`1158`	`DynSolType::Uint(n) => {`
`1159`	`1159`	`if MAX {`
`1160`	`1160`	`let mut max = U256::MAX;`
`1161`		`- if n < 255 {`
	`1161`	`+ if n < 256 {`
`1162`	`1162`	`max &= U256::from(1).wrapping_shl(n).wrapping_sub(U256::from(1));`
`1163`	`1163`	`}`
`1164`	`1164`	`Ok(max.to_string())`