From c2da564ffe5c7db48e067a7a05063ca5435a6fd1 Mon Sep 17 00:00:00 2001
From: Justin Carpentier <justin.carpentier@inria.fr>
Date: Mon, 30 Jan 2023 17:08:55 +0100
Subject: [PATCH] core: add aligned_malloc
---
include/eigenpy/alignment.hpp | 12 ++++++++++++
1 file changed, 12 insertions(+)
diff --git a/include/eigenpy/alignment.hpp b/include/eigenpy/alignment.hpp
index b04a7d63..bb888b8d 100644
--- a/include/eigenpy/alignment.hpp
+++ b/include/eigenpy/alignment.hpp
@@ -29,6 +29,18 @@ struct aligned_instance {
typename aligned_storage<sizeof(Data)>::type storage;
};
+inline void *aligned_malloc(
+ std::size_t size, std::size_t alignment = EIGENPY_DEFAULT_ALIGN_BYTES) {
+ void *original = std::malloc(size + alignment);
+ if (original == 0) return 0;
+ void *aligned =
+ reinterpret_cast<void *>((reinterpret_cast<std::size_t>(original) &
+ ~(std::size_t(alignment - 1))) +
+ alignment);
+ *(reinterpret_cast<void **>(aligned) - 1) = original;
+ return aligned;
+}
+
} // namespace eigenpy
namespace boost {
--
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