Initial

bitstream.h

@@ -0,0 +1,43 @@
+#include <cstddef>
+
+#ifndef BITSTREAM
+#define BITSTREAM
+
+class ibitstream
+{
+private:
+    // read bits from byte
+    int count;
+
+    // last byte from stream
+    uint8_t cache;
+
+    // Input stream
+    std::basic_istream<char> &is;
+public:
+    ibitstream(std::basic_istream<char> &is) : count(-1), cache('\0'), is(is) {};
+
+    // Get n bits from stream; at most - 32
+    int getbits(size_t n);
+};
+
+class obitstream
+{
+private:
+    // written bits to byte
+    int count;
+
+    // last byte from stream
+    uint8_t cache;
+
+    std::basic_ostream<char> &os;
+public:
+    obitstream(std::basic_ostream<char> &os) : count(0), cache(0), os(os) {};
+
+    // Get n bits from stream; at most - 32
+    void writebits(short bits, size_t n);
+
+    void flush();
+};
+
+#endif