adding back in a require trait that is used by Stan

stan-dev · Dec 15, 2023 · 032b135 · 032b135
1 parent 63baa5f
commit 032b135
Showing 1 changed file with 4 additions and 0 deletions.
diff --git a/stan/math/prim/meta/is_kernel_expression.hpp b/stan/math/prim/meta/is_kernel_expression.hpp
@@ -112,6 +112,10 @@ using require_kernel_expression_lhs_t
 
 // STAN_ADD_REQUIRE_UNARY(rev_kernel_expression, is_rev_kernel_expression,
 // opencl_kernel_generator);
+template <typename T>
+using require_rev_kernel_expression_t
+    = require_t<is_rev_kernel_expression<std::decay_t<T>>>;
+
 //  STAN_ADD_REQUIRE_UNARY(prim_or_rev_kernel_expression,
 //  is_prim_or_rev_kernel_expression, opencl_kernel_generator);
 template <typename... Types>