Fix CPU implementation of Reduce::MinMax(n, ptr) (#5322)

WeiqunZhang · web-flow · commit 51285c133b8b · 2026-04-13T20:11:40.000-07:00
There was a stray template parameter.
diff --git a/Src/Base/AMReX_Reduce.H b/Src/Base/AMReX_Reduce.H
@@ -1492,7 +1492,7 @@ std::pair<T,T> MinMax (N n, F const& f)
     return std::make_pair(r_min,r_max);
 }
 
-template <typename T, typename N, typename M>
+template <typename T, typename N, std::enable_if_t<std::is_integral_v<N>,int>>
 std::pair<T,T> MinMax (N n, T const* v)
 {
     return Reduce::MinMax<T>(n, [=] (N i) -> T { return v[i]; });

Original file line number	Diff line number	Diff line change
`@@ -1492,7 +1492,7 @@ std::pair<T,T> MinMax (N n, F const& f)`
`1492`	`1492`	`return std::make_pair(r_min,r_max);`
`1493`	`1493`	`}`
`1494`	`1494`
`1495`		`-template <typename T, typename N, typename M>`
	`1495`	`+template <typename T, typename N, std::enable_if_t<std::is_integral_v<N>,int>>`
`1496`	`1496`	`std::pair<T,T> MinMax (N n, T const* v)`
`1497`	`1497`	`{`
`1498`	`1498`	`return Reduce::MinMax<T>(n, [=] (N i) -> T { return v[i]; });`