From 2250678c66cda07caa09aa9ad4d65a8857423692 Mon Sep 17 00:00:00 2001
From: Vladimir Sadovnikov <sadko4u@gmail.com>
Date: Tue, 14 Nov 2023 01:06:22 +0300
Subject: [PATCH] Implemented advance_ptr function.

---
 CHANGELOG                          | 2 +-
 include/lsp-plug.in/common/alloc.h | 9 +++++++++
 2 files changed, 10 insertions(+), 1 deletion(-)

diff --git a/CHANGELOG b/CHANGELOG
index 8d80b5e..047eea4 100644
--- a/CHANGELOG
+++ b/CHANGELOG
@@ -3,7 +3,7 @@
 *******************************************************************************
 
 === 1.0.33 ===
-
+* Implemented advance_ptr function.
 
 === 1.0.32 ===
 * Added realloc_aligned function.
diff --git a/include/lsp-plug.in/common/alloc.h b/include/lsp-plug.in/common/alloc.h
index 1ca0003..43ebeb5 100644
--- a/include/lsp-plug.in/common/alloc.h
+++ b/include/lsp-plug.in/common/alloc.h
@@ -57,6 +57,15 @@ namespace lsp
             return static_cast<T *>(::malloc(sizeof(T) * count));
         }
 
+    template <class T, class P>
+        inline T *advance_ptr(P * &ptr, size_t count)
+        {
+            uintptr_t x     = uintptr_t(ptr);
+            T *result       = reinterpret_cast<T *>(ptr);
+            ptr             = reinterpret_cast<P *>(x + count * sizeof(T));
+            return result;
+        }
+
     /** Allocate aligned pointer
      *
      * @param ptr reference to pointer to store allocated pointer for future free() operation