bitset功能替换bitarray

extend/lcodec/lcodec.vcxproj

@@ -7,7 +7,7 @@
     </ProjectConfiguration>
   </ItemGroup>
   <ItemGroup>
-    <ClInclude Include="src\bitarray.h" />
+    <ClInclude Include="src\bitset.h" />
     <ClInclude Include="src\guid.h" />
     <ClInclude Include="src\hash.h" />
     <ClInclude Include="src\http.h" />

extend/lcodec/lcodec.vcxproj.filters

@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="utf-8"?>
 <Project ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
   <ItemGroup>
-    <ClInclude Include="src\bitarray.h">
+    <ClInclude Include="src\bitset.h">
       <Filter>src</Filter>
     </ClInclude>
     <ClInclude Include="src\guid.h">

extend/lcodec/src/bitset.h

@@ -0,0 +1,51 @@
+#pragma once
+
+#include <bitset>
+#include <string>
+#include <stdlib.h>
+
+namespace lcodec {
+
+    template <std::size_t N>
+    std::string lua_bitset_new(std::string val) {
+        std::bitset<N> bit(val);
+        return bit.to_string();
+    }
+
+    template <std::size_t N>
+    bool lua_bitset_get(std::string val, size_t pos) {
+        std::bitset<N> bit(val);
+        return bit[pos - 1];
+    }
+
+    template <std::size_t N>
+    std::string lua_bitset_set(std::string val, size_t pos, bool bval) {
+        std::bitset<N> bit(val);
+        return bit.set(pos - 1, bval).to_string();
+    }
+
+    template <std::size_t N>
+    std::string lua_bitset_flip(std::string val, size_t pos) {
+        std::bitset<N> bit(val);
+        return bit.flip(pos - 1).to_string();
+    }
+
+    template <std::size_t N>
+    std::string lua_bitset_reset(std::string val, size_t pos) {
+        std::bitset<N> bit(val);
+        if (pos == 0) {
+            return bit.reset().to_string();
+        }
+        return bit.reset(pos - 1).to_string();
+    }
+
+    template <std::size_t N>
+    bool lua_bitset_check(std::string val, size_t len) {
+        if (len > N) return false;
+        std::bitset<N> bit(val);
+        for (size_t i = 0; i < len; ++i) {
+            if (!bit[i]) return false;
+        }
+        return true;
+    }
+}