diff align8.cpp @ 1:6422640a802f

first upload

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/align8.cpp	Tue Oct 05 10:45:57 2010 +0100
@@ -0,0 +1,33 @@
+//---------------------------------------------------------------------------
+
+
+#include <memory.h>
+#include <stdlib.h>
+#include "align8.h"
+
+//---------------------------------------------------------------------------
+/*
+  function malloc8: 8-byte (64-bit) aligned memory allocation.
+
+  Returns pointer to a memory block of $size starting at an address divisible by 8.
+*/
+void* malloc8(unsigned size)
+{
+  char *buffer, *result;
+  buffer=(char*)malloc(size+8+sizeof(void*));
+  if(!buffer) return(NULL);
+  char* tmp=&buffer[sizeof(void*)];
+  result=&((char*)((unsigned)tmp&0xFFFFFFF8))[8];
+  ((void**)result)[-1]=buffer;
+  return(result);
+}//malloc8
+
+/*
+  function free8: deallocation for malloc8()
+
+  No return value.
+*/
+void free8(void* buffer8)
+{
+  if (buffer8) free(((void**)buffer8)[-1]);
+}//free8