3.13

7zip/Common/LSBFDecoder.cpp

@@ -0,0 +1,34 @@
+// Stream/LSBFDecoder.cpp
+
+#include "StdAfx.h"
+
+#include "LSBFDecoder.h"
+
+namespace NStream {
+namespace NLSBF {
+
+BYTE kInvertTable[256];
+
+class CInverterTableInitializer
+{
+public:
+  CInverterTableInitializer()
+  {
+    for(int i = 0; i < 256; i++)
+    {
+      BYTE b = BYTE(i);
+      BYTE bInvert = 0;
+      for(int j = 0; j < 8; j++)
+      {
+        bInvert <<= 1;
+        if (b & 1)
+          bInvert |= 1;
+        b >>= 1;
+      }
+      kInvertTable[i] = bInvert;
+    }
+  }
+} g_InverterTableInitializer;
+
+
+}}