Index: ct/tools/rootmacros/izstream.h
===================================================================
--- /fact/tools/rootmacros/izstream.h	(revision 12197)
+++ 	(revision )
@@ -1,176 +1,0 @@
-#ifndef MARS_izstream
-#define MARS_izstream
-
-#include <istream>
-#include <streambuf>
-
-#ifdef __MARS__
-#ifndef ROOT_TObject
-#include <TObject.h> // Needed for ClassDef
-#endif
-#endif
-
-#ifdef __CINT__
-typedef void *gzFile;
-#else
-#include <zlib.h>
-#endif
-
-class izstream : public std::streambuf, public std::istream
-{
-private:
-    static const int fgBufferSize = 3276804; // maximum size of a fact event + 4
-
-    gzFile fFile;                 // file handle for compressed file
-    char   fBuffer[fgBufferSize]; // data buffer
-
-    int underflow()
-    {
-        if (gptr() && gptr()<egptr())
-            return * reinterpret_cast<unsigned char *>(gptr());
-
-        if (!is_open())
-            return EOF;
-
-        // gptr()-eback(): if more than four bytes are already flushed
-        const int iputback = gptr()-eback()>4 ? 4 : gptr()-eback();
-
-        // Copy the last four bytes flushed into the putback area
-        memcpy(fBuffer+(4-iputback), gptr()-iputback, iputback);
-
-        // Fill the buffer starting at the current file position and reset buffer
-        // pointers by calling setg
-        const int num = gzread(fFile, fBuffer+4, fgBufferSize-4);
-        if (num <= 0) // ERROR or EOF
-            return EOF;
-
-        // reset buffer pointers
-        setg(fBuffer+(4-iputback), fBuffer+4, fBuffer+4+num);
-
-        // return next character
-        return *reinterpret_cast<unsigned char *>(gptr());
-    }
-
-
-public:
-    izstream() : std::istream(this), fFile(0)
-    {
-        setg(fBuffer+4, fBuffer+4, fBuffer+4);
-    }
-    izstream(const char *name) : std::istream(this), fFile(0)
-    {
-        setg(fBuffer+4, fBuffer+4, fBuffer+4);
-        open(name);
-    }
-    ~izstream() { izstream::close(); }
-
-    int is_open() { return fFile!=0; }
-
-    // --------------------------------------------------------------------------
-    //
-    // Open a file by name. Test if it is open like for an ifstream
-    // It doesn't matter whether the file is gzip compressed or not.
-    //
-    void open(const char* name)
-    {
-        if (is_open())
-        {
-            clear(rdstate()|std::ios::failbit);
-            return;
-        }
-
-        fFile = gzopen(name, "rb");
-        if (fFile == 0)
-        {
-            clear(rdstate()|std::ios::failbit);
-            return;
-        }
-    }
-    // --------------------------------------------------------------------------
-    //
-    // Close an open file.
-    //
-    void close()
-    {
-        if (!is_open())
-            return;
-
-        if (gzclose(fFile) != Z_OK)
-            clear(rdstate()|std::ios::failbit);
-
-        fFile = 0;
-    }
-
-    std::streambuf::pos_type seekoff(std::streambuf::off_type offset, std::ios_base::seekdir dir,
-                                     std::ios_base::openmode = std::ios_base::in)
-    {
-        // Using a switch instead results in:
-        //  In member function `virtual std::streampos izstream::seekoff(long int, std::_Ios_Seekdir, std::_Ios_Openmode)':
-        //  warning: enumeration value `_M_ios_seekdir_end' not handled in switch
-        //  warning: case value `0' not in enumerated type `_Ios_Seekdir'
-        //  warning: case value `1' not in enumerated type `_Ios_Seekdir'
-        //  warning: case value `2' not in enumerated type `_Ios_Seekdir'
-
-        if (dir==std::ios::end)
-        {
-            clear(rdstate()|std::ios::failbit);
-            return EOF;
-        }
-
-        // We only do relative seeking to avoid unnecessary decompression
-        // of the whole file
-        if (dir==std::ios::beg)
-            offset -= tellg();
-
-        // Calculate future position in streambuffer
-        const char *ptr = gptr()+offset;
-
-        // This is the number of bytes still available in the buffer
-        const size_t sbuf = egptr()-gptr();
-
-        // Check if the new position will still be in the buffer
-        // In this case the target data was already decompressed.
-        if (ptr>=eback() && ptr<egptr())
-        {
-            // Absolute position in z-stream
-            const z_off_t zpos = gztell(fFile)-sbuf; //gzseek(fFile, 0, SEEK_CUR);
-
-            gbump(offset);
-
-            return zpos+offset;
-        }
-
-        const streampos pos = gzseek(fFile, offset-sbuf, SEEK_CUR);
-
-        // Buffer is empty - force refilling
-        setg(fBuffer+4, fBuffer+4, fBuffer+4);
-
-        return pos<0 ? streampos(EOF) : pos;
-
-        /*
-         // SEEK_END not supported by zlib
-         if (dir==ios::end)
-         {
-             // Position in z-stream
-             const z_off_t zpos = gzseek(fFile, offset, SEEK_END);
-             if (zpos<0)
-                 return EOF;
-
-             return fill_buffer()==EOF ? EOF : zpos;
-         }
-         */
-        return EOF;
-    }
-
-    std::streambuf::pos_type seekpos(std::streambuf::pos_type pos,
-                                     std::ios_base::openmode = std::ios_base::in)
-    {
-        return seekoff(pos, std::ios::beg);
-    }
-
-#ifdef __MARS__
-    ClassDef(izstream, 0) // A C++ wrapper to istream zlib files
-#endif
-};
-
-#endif