4.63

CPP/7zip/Compress/BitlDecoder.cpp

@@ -0,0 +1,24 @@
+// BitlDecoder.cpp
+
+#include "StdAfx.h"
+
+#include "BitlDecoder.h"
+
+namespace NBitl {
+
+Byte kInvertTable[256];
+
+struct CInverterTableInitializer
+{
+  CInverterTableInitializer()
+  {
+    for (int i = 0; i < 256; i++)
+    {
+      int x = ((i & 0x55) << 1) | ((i & 0xAA) >> 1);
+      x = ((x & 0x33) << 2) | ((x & 0xCC) >> 2);
+      kInvertTable[i] = (Byte)(((x & 0x0F) << 4) | ((x & 0xF0) >> 4));
+    }
+  }
+} g_InverterTableInitializer;
+
+}