From 7de3a26e0f449e59ffe13582fdfb12f923a07c01 Mon Sep 17 00:00:00 2001
From: hyzboy <hyzboy@gmail.com>
Date: Thu, 22 Oct 2020 18:55:21 +0800
Subject: [PATCH] hgl_align_malloc/hgl_align_realloc improve in Windows
 platform.

---
 inc/hgl/platform/os/MSWindows.h | 13 ++++++++++++-
 1 file changed, 12 insertions(+), 1 deletion(-)

diff --git a/inc/hgl/platform/os/MSWindows.h b/inc/hgl/platform/os/MSWindows.h
index 707965c..4254a42 100644
--- a/inc/hgl/platform/os/MSWindows.h
+++ b/inc/hgl/platform/os/MSWindows.h
@@ -61,13 +61,24 @@ using os_char           =wchar_t;
 template<typename T>
 inline T *hgl_align_malloc(size_t n)
 {
+    if(n<=0)return(nullptr);
+
     return (T *)_aligned_malloc(n*sizeof(T),alignof(T));
 }
 
 template<typename T>
 inline T *hgl_align_realloc(T *ptr,size_t n)
 {
-    return (T *)_aligned_realloc(ptr,n*sizeof(T),alignof(T));
+    if(n<=0)
+    {
+        _aligned_free(ptr);
+        return(nullptr);
+    }
+
+    if(ptr)
+        return (T *)_aligned_realloc(ptr,n*sizeof(T),alignof(T));
+    else
+        return (T *)_aligned_malloc(n*sizeof(T),alignof(T));        
 }
 
 #define OS_EXTERNAL_H           <winbase.h>