From 3bfbed2e40e1118077d9981c4195c9a94403ed74 Mon Sep 17 00:00:00 2001
From: Anthony Ramine <n.oxyde@gmail.com>
Date: Tue, 21 Nov 2017 22:25:41 +0100
Subject: Document enif_realloc

---
 erts/doc/src/erl_nif.xml | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/erts/doc/src/erl_nif.xml b/erts/doc/src/erl_nif.xml
index 419e41693e..88eb6725cb 100644
--- a/erts/doc/src/erl_nif.xml
+++ b/erts/doc/src/erl_nif.xml
@@ -2759,6 +2759,18 @@ enif_map_iterator_destroy(env, &amp;iter);</code>
       </desc>
     </func>
 
+    <func>
+      <name><ret>void *</ret>
+        <nametext>enif_realloc(void* ptr, size_t size)</nametext></name>
+      <fsummary>Reallocate dynamic memory.</fsummary>
+      <desc>
+        <p>Reallocates memory allocated by
+          <seealso marker="#enif_alloc"><c>enif_alloc</c></seealso> to
+          <c>size</c> bytes.</p>
+        <p>Returns <c>NULL</c> if the reallocation fails.</p>
+      </desc>
+    </func>
+
     <func>
       <name><ret>int</ret>
         <nametext>enif_realloc_binary(ErlNifBinary* bin, size_t size)</nametext>
-- 
cgit v1.2.3


From 15aaf359c770d302bef57482c13341646ef275cd Mon Sep 17 00:00:00 2001
From: Anthony Ramine <n.oxyde@gmail.com>
Date: Wed, 22 Nov 2017 22:24:45 +0100
Subject: Document alignment guarantees of enif_alloc and enif_realloc

---
 erts/doc/src/erl_nif.xml | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/erts/doc/src/erl_nif.xml b/erts/doc/src/erl_nif.xml
index 88eb6725cb..ef3cdb89e9 100644
--- a/erts/doc/src/erl_nif.xml
+++ b/erts/doc/src/erl_nif.xml
@@ -952,6 +952,8 @@ typedef struct {
       <desc>
         <p>Allocates memory of <c>size</c> bytes.</p>
         <p>Returns <c>NULL</c> if the allocation fails.</p>
+        <p>The returned pointer is suitably aligned for any built-in type that
+          fit in the allocated memory.</p>
       </desc>
     </func>
 
@@ -2768,6 +2770,8 @@ enif_map_iterator_destroy(env, &amp;iter);</code>
           <seealso marker="#enif_alloc"><c>enif_alloc</c></seealso> to
           <c>size</c> bytes.</p>
         <p>Returns <c>NULL</c> if the reallocation fails.</p>
+        <p>The returned pointer is suitably aligned for any built-in type that
+          fit in the allocated memory.</p>
       </desc>
     </func>
 
-- 
cgit v1.2.3