Initial import of the CDE 2.1.30 sources from the Open Group.

cde/programs/dtinfo/DtMmdb/utility/c_streambuf.h

@@ -0,0 +1,95 @@
+/* $XConsortium: streambuf.h /main/4 1996/06/11 17:39:15 cde-hal $ */
+
+
+#ifndef _x_streambuf_h
+#define _x_streambuf_h
+
+#ifdef EOF
+#if EOF!=-1
+#define EOF (-1)
+#endif
+#else
+#define EOF (-1)
+#endif
+
+
+typedef long streampos;
+
+
+#ifdef STREAM_DEBUG
+#define form x_form 
+#define streambuf x_streambuf
+#define filebuf x_filebuf
+#define ios x_ios
+#define iostream x_iostream
+#define istream x_istream
+#define ostream x_ostream
+#define fstream x_fstream
+#define istrstream x_istrstream
+#define ostrstream x_ostrstream
+#endif
+
+
+class streambuf
+{
+protected:
+   char* base;
+   char* end;
+   char* get_ptr;
+   char* put_ptr;
+
+   int _gcount;
+   int _pcount;
+
+   int _capacity;
+   int _size;
+   int _alloc;
+
+protected:
+   enum notify_action_t { GET, PUT };
+   virtual void notify(int) {}; 
+
+   virtual int overflow() { return EOF;};
+   virtual int underflow() { return EOF; };
+
+   int full() { return ( _size == _capacity ) ? 1 : 0 ; };
+   int empty() { return ( _size == 0 ) ? 1 : 0 ; };
+
+   void empty_buffer() {
+      _size = 0;
+      put_ptr = get_ptr = base;
+   };
+
+   int move_get_ptr(int);
+   int move_put_ptr(int);
+
+public:
+   streambuf();
+   streambuf(char* p, int l, int pHasContent = 0);
+   virtual ~streambuf();
+
+   virtual int examine() ; // EOF: no char available. Otherwise, 
+                                  // return 0.The get_ptr pointer does 
+				  // not move.
+
+   virtual int get() ; // EOF: can't get a char. Otherwise, 
+                              // return 0. The get_ptr pointer does move.
+
+   virtual int putback(char c) ; // EOF: can't put back. Otherwise, 
+			        // putback operation is ok.
+   virtual int put(char c) ; // EOF: can't put. Otherwise, 
+			    // put operation is ok.
+
+   int gcount() { return _gcount; };
+   void clear_gcount() { _gcount = 0; };
+
+   int pcount() { return _pcount; };
+   void clear_pcount() { _pcount = 0; };
+
+   virtual int flush() { return EOF; };
+   virtual int seekg(streampos) { return EOF; };
+
+   char* get_buf() { return base; };
+};
+
+#endif