From 94a0156620a278240e3aa2f423c330ae02c4eaab Mon Sep 17 00:00:00 2001
From: tapplencourt <tapplencourt@anl.gov>
Date: Wed, 1 Apr 2026 18:21:37 +0000
Subject: [PATCH] Prefetch and memadvice now accept const ptr

---
 include/simsycl/sycl/handler.hh |  4 ++--
 include/simsycl/sycl/queue.hh   | 12 ++++++------
 2 files changed, 8 insertions(+), 8 deletions(-)

diff --git a/include/simsycl/sycl/handler.hh b/include/simsycl/sycl/handler.hh
index 7b14e24..926b966 100644
--- a/include/simsycl/sycl/handler.hh
+++ b/include/simsycl/sycl/handler.hh
@@ -149,9 +149,9 @@ class handler {
         std::fill_n(static_cast<T *>(ptr), count, pattern);
     }
 
-    void prefetch(void * /* ptr */, size_t /* num_bytes */) {}
+    void prefetch(const void * /* ptr */, size_t /* num_bytes */) {}
 
-    void mem_advise(void * /* ptr */, size_t /* num_bytes */, int /* advice */) {}
+    void mem_advise(const void * /* ptr */, size_t /* num_bytes */, int /* advice */) {}
 
     //------ Explicit memory operation APIs
 
diff --git a/include/simsycl/sycl/queue.hh b/include/simsycl/sycl/queue.hh
index 8ff16cc..fd3e73c 100644
--- a/include/simsycl/sycl/queue.hh
+++ b/include/simsycl/sycl/queue.hh
@@ -352,26 +352,26 @@ class queue final : public detail::reference_type<queue, detail::queue_state>,
         return status.end();
     }
 
-    event prefetch(void * /* ptr */, size_t /* num_bytes */) { return detail::event_state::instant(); }
+    event prefetch(const void * /* ptr */, size_t /* num_bytes */) { return detail::event_state::instant(); }
 
-    event prefetch(void * /* ptr */, size_t /* num_bytes */, event /* dep_event */) {
+    event prefetch(const void * /* ptr */, size_t /* num_bytes */, event /* dep_event */) {
         return detail::event_state::instant();
     }
 
-    event prefetch(void * /* ptr */, size_t /* num_bytes */, const std::vector<event> & /* dep_events */) {
+    event prefetch(const void * /* ptr */, size_t /* num_bytes */, const std::vector<event> & /* dep_events */) {
         return detail::event_state::instant();
     }
 
-    event mem_advise(void * /* ptr */, size_t /* num_bytes */, int /* advice */) {
+    event mem_advise(const void * /* ptr */, size_t /* num_bytes */, int /* advice */) {
         return detail::event_state::instant();
     }
 
-    event mem_advise(void * /* ptr */, size_t /* num_bytes */, int /* advice */, event /* dep_event */) {
+    event mem_advise(const void * /* ptr */, size_t /* num_bytes */, int /* advice */, event /* dep_event */) {
         return detail::event_state::instant();
     }
 
     event mem_advise(
-        void * /* ptr */, size_t /* num_bytes */, int /* advice */, const std::vector<event> & /* dep_events */) {
+        const void * /* ptr */, size_t /* num_bytes */, int /* advice */, const std::vector<event> & /* dep_events */) {
         return detail::event_state::instant();
     }