Index: trunk/minix/lib/zlib-1.2.3/contrib/iostream3/README
===================================================================
--- trunk/minix/lib/zlib-1.2.3/contrib/iostream3/README	(revision 9)
+++ 	(revision )
@@ -1,35 +1,0 @@
-These classes provide a C++ stream interface to the zlib library. It allows you
-to do things like:
-
-  gzofstream outf("blah.gz");
-  outf << "These go into the gzip file " << 123 << endl;
-
-It does this by deriving a specialized stream buffer for gzipped files, which is
-the way Stroustrup would have done it. :->
-
-The gzifstream and gzofstream classes were originally written by Kevin Ruland
-and made available in the zlib contrib/iostream directory. The older version still
-compiles under gcc 2.xx, but not under gcc 3.xx, which sparked the development of
-this version.
-
-The new classes are as standard-compliant as possible, closely following the
-approach of the standard library's fstream classes. It compiles under gcc versions
-3.2 and 3.3, but not under gcc 2.xx. This is mainly due to changes in the standard
-library naming scheme. The new version of gzifstream/gzofstream/gzfilebuf differs
-from the previous one in the following respects:
-- added showmanyc
-- added setbuf, with support for unbuffered output via setbuf(0,0)
-- a few bug fixes of stream behavior
-- gzipped output file opened with default compression level instead of maximum level
-- setcompressionlevel()/strategy() members replaced by single setcompression()
-
-The code is provided "as is", with the permission to use, copy, modify, distribute
-and sell it for any purpose without fee.
-
-Ludwig Schwardt
-<schwardt@sun.ac.za>
-
-DSP Lab
-Electrical & Electronic Engineering Department
-University of Stellenbosch
-South Africa
Index: trunk/minix/lib/zlib-1.2.3/contrib/iostream3/TODO
===================================================================
--- trunk/minix/lib/zlib-1.2.3/contrib/iostream3/TODO	(revision 9)
+++ 	(revision )
@@ -1,17 +1,0 @@
-Possible upgrades to gzfilebuf:
-
-- The ability to do putback (e.g. putbackfail)
-
-- The ability to seek (zlib supports this, but could be slow/tricky)
-
-- Simultaneous read/write access (does it make sense?)
-
-- Support for ios_base::ate open mode
-
-- Locale support?
-
-- Check public interface to see which calls give problems
-  (due to dependence on library internals)
-
-- Override operator<<(ostream&, gzfilebuf*) to allow direct copying
-  of stream buffer to stream ( i.e. os << is.rdbuf(); )
Index: trunk/minix/lib/zlib-1.2.3/contrib/iostream3/test.cc
===================================================================
--- trunk/minix/lib/zlib-1.2.3/contrib/iostream3/test.cc	(revision 9)
+++ 	(revision )
@@ -1,50 +1,0 @@
-/*
- * Test program for gzifstream and gzofstream
- *
- * by Ludwig Schwardt <schwardt@sun.ac.za>
- * original version by Kevin Ruland <kevin@rodin.wustl.edu>
- */
-
-#include "zfstream.h"
-#include <iostream>      // for cout
-
-int main() {
-
-  gzofstream outf;
-  gzifstream inf;
-  char buf[80];
-
-  outf.open("test1.txt.gz");
-  outf << "The quick brown fox sidestepped the lazy canine\n"
-       << 1.3 << "\nPlan " << 9 << std::endl;
-  outf.close();
-  std::cout << "Wrote the following message to 'test1.txt.gz' (check with zcat or zless):\n"
-            << "The quick brown fox sidestepped the lazy canine\n"
-            << 1.3 << "\nPlan " << 9 << std::endl;
-
-  std::cout << "\nReading 'test1.txt.gz' (buffered) produces:\n";
-  inf.open("test1.txt.gz");
-  while (inf.getline(buf,80,'\n')) {
-    std::cout << buf << "\t(" << inf.rdbuf()->in_avail() << " chars left in buffer)\n";
-  }
-  inf.close();
-
-  outf.rdbuf()->pubsetbuf(0,0);
-  outf.open("test2.txt.gz");
-  outf << setcompression(Z_NO_COMPRESSION)
-       << "The quick brown fox sidestepped the lazy canine\n"
-       << 1.3 << "\nPlan " << 9 << std::endl;
-  outf.close();
-  std::cout << "\nWrote the same message to 'test2.txt.gz' in uncompressed form";
-
-  std::cout << "\nReading 'test2.txt.gz' (unbuffered) produces:\n";
-  inf.rdbuf()->pubsetbuf(0,0);
-  inf.open("test2.txt.gz");
-  while (inf.getline(buf,80,'\n')) {
-    std::cout << buf << "\t(" << inf.rdbuf()->in_avail() << " chars left in buffer)\n";
-  }
-  inf.close();
-
-  return 0;
-
-}
Index: trunk/minix/lib/zlib-1.2.3/contrib/iostream3/zfstream.cc
===================================================================
--- trunk/minix/lib/zlib-1.2.3/contrib/iostream3/zfstream.cc	(revision 9)
+++ 	(revision )
@@ -1,479 +1,0 @@
-/*
- * A C++ I/O streams interface to the zlib gz* functions
- *
- * by Ludwig Schwardt <schwardt@sun.ac.za>
- * original version by Kevin Ruland <kevin@rodin.wustl.edu>
- *
- * This version is standard-compliant and compatible with gcc 3.x.
- */
-
-#include "zfstream.h"
-#include <cstring>          // for strcpy, strcat, strlen (mode strings)
-#include <cstdio>           // for BUFSIZ
-
-// Internal buffer sizes (default and "unbuffered" versions)
-#define BIGBUFSIZE BUFSIZ
-#define SMALLBUFSIZE 1
-
-/*****************************************************************************/
-
-// Default constructor
-gzfilebuf::gzfilebuf()
-: file(NULL), io_mode(std::ios_base::openmode(0)), own_fd(false),
-  buffer(NULL), buffer_size(BIGBUFSIZE), own_buffer(true)
-{
-  // No buffers to start with
-  this->disable_buffer();
-}
-
-// Destructor
-gzfilebuf::~gzfilebuf()
-{
-  // Sync output buffer and close only if responsible for file
-  // (i.e. attached streams should be left open at this stage)
-  this->sync();
-  if (own_fd)
-    this->close();
-  // Make sure internal buffer is deallocated
-  this->disable_buffer();
-}
-
-// Set compression level and strategy
-int
-gzfilebuf::setcompression(int comp_level,
-                          int comp_strategy)
-{
-  return gzsetparams(file, comp_level, comp_strategy);
-}
-
-// Open gzipped file
-gzfilebuf*
-gzfilebuf::open(const char *name,
-                std::ios_base::openmode mode)
-{
-  // Fail if file already open
-  if (this->is_open())
-    return NULL;
-  // Don't support simultaneous read/write access (yet)
-  if ((mode & std::ios_base::in) && (mode & std::ios_base::out))
-    return NULL;
-
-  // Build mode string for gzopen and check it [27.8.1.3.2]
-  char char_mode[6] = "\0\0\0\0\0";
-  if (!this->open_mode(mode, char_mode))
-    return NULL;
-
-  // Attempt to open file
-  if ((file = gzopen(name, char_mode)) == NULL)
-    return NULL;
-
-  // On success, allocate internal buffer and set flags
-  this->enable_buffer();
-  io_mode = mode;
-  own_fd = true;
-  return this;
-}
-
-// Attach to gzipped file
-gzfilebuf*
-gzfilebuf::attach(int fd,
-                  std::ios_base::openmode mode)
-{
-  // Fail if file already open
-  if (this->is_open())
-    return NULL;
-  // Don't support simultaneous read/write access (yet)
-  if ((mode & std::ios_base::in) && (mode & std::ios_base::out))
-    return NULL;
-
-  // Build mode string for gzdopen and check it [27.8.1.3.2]
-  char char_mode[6] = "\0\0\0\0\0";
-  if (!this->open_mode(mode, char_mode))
-    return NULL;
-
-  // Attempt to attach to file
-  if ((file = gzdopen(fd, char_mode)) == NULL)
-    return NULL;
-
-  // On success, allocate internal buffer and set flags
-  this->enable_buffer();
-  io_mode = mode;
-  own_fd = false;
-  return this;
-}
-
-// Close gzipped file
-gzfilebuf*
-gzfilebuf::close()
-{
-  // Fail immediately if no file is open
-  if (!this->is_open())
-    return NULL;
-  // Assume success
-  gzfilebuf* retval = this;
-  // Attempt to sync and close gzipped file
-  if (this->sync() == -1)
-    retval = NULL;
-  if (gzclose(file) < 0)
-    retval = NULL;
-  // File is now gone anyway (postcondition [27.8.1.3.8])
-  file = NULL;
-  own_fd = false;
-  // Destroy internal buffer if it exists
-  this->disable_buffer();
-  return retval;
-}
-
-/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
-
-// Convert int open mode to mode string
-bool
-gzfilebuf::open_mode(std::ios_base::openmode mode,
-                     char* c_mode) const
-{
-  bool testb = mode & std::ios_base::binary;
-  bool testi = mode & std::ios_base::in;
-  bool testo = mode & std::ios_base::out;
-  bool testt = mode & std::ios_base::trunc;
-  bool testa = mode & std::ios_base::app;
-
-  // Check for valid flag combinations - see [27.8.1.3.2] (Table 92)
-  // Original zfstream hardcoded the compression level to maximum here...
-  // Double the time for less than 1% size improvement seems
-  // excessive though - keeping it at the default level
-  // To change back, just append "9" to the next three mode strings
-  if (!testi && testo && !testt && !testa)
-    strcpy(c_mode, "w");
-  if (!testi && testo && !testt && testa)
-    strcpy(c_mode, "a");
-  if (!testi && testo && testt && !testa)
-    strcpy(c_mode, "w");
-  if (testi && !testo && !testt && !testa)
-    strcpy(c_mode, "r");
-  // No read/write mode yet
-//  if (testi && testo && !testt && !testa)
-//    strcpy(c_mode, "r+");
-//  if (testi && testo && testt && !testa)
-//    strcpy(c_mode, "w+");
-
-  // Mode string should be empty for invalid combination of flags
-  if (strlen(c_mode) == 0)
-    return false;
-  if (testb)
-    strcat(c_mode, "b");
-  return true;
-}
-
-// Determine number of characters in internal get buffer
-std::streamsize
-gzfilebuf::showmanyc()
-{
-  // Calls to underflow will fail if file not opened for reading
-  if (!this->is_open() || !(io_mode & std::ios_base::in))
-    return -1;
-  // Make sure get area is in use
-  if (this->gptr() && (this->gptr() < this->egptr()))
-    return std::streamsize(this->egptr() - this->gptr());
-  else
-    return 0;
-}
-
-// Fill get area from gzipped file
-gzfilebuf::int_type
-gzfilebuf::underflow()
-{
-  // If something is left in the get area by chance, return it
-  // (this shouldn't normally happen, as underflow is only supposed
-  // to be called when gptr >= egptr, but it serves as error check)
-  if (this->gptr() && (this->gptr() < this->egptr()))
-    return traits_type::to_int_type(*(this->gptr()));
-
-  // If the file hasn't been opened for reading, produce error
-  if (!this->is_open() || !(io_mode & std::ios_base::in))
-    return traits_type::eof();
-
-  // Attempt to fill internal buffer from gzipped file
-  // (buffer must be guaranteed to exist...)
-  int bytes_read = gzread(file, buffer, buffer_size);
-  // Indicates error or EOF
-  if (bytes_read <= 0)
-  {
-    // Reset get area
-    this->setg(buffer, buffer, buffer);
-    return traits_type::eof();
-  }
-  // Make all bytes read from file available as get area
-  this->setg(buffer, buffer, buffer + bytes_read);
-
-  // Return next character in get area
-  return traits_type::to_int_type(*(this->gptr()));
-}
-
-// Write put area to gzipped file
-gzfilebuf::int_type
-gzfilebuf::overflow(int_type c)
-{
-  // Determine whether put area is in use
-  if (this->pbase())
-  {
-    // Double-check pointer range
-    if (this->pptr() > this->epptr() || this->pptr() < this->pbase())
-      return traits_type::eof();
-    // Add extra character to buffer if not EOF
-    if (!traits_type::eq_int_type(c, traits_type::eof()))
-    {
-      *(this->pptr()) = traits_type::to_char_type(c);
-      this->pbump(1);
-    }
-    // Number of characters to write to file
-    int bytes_to_write = this->pptr() - this->pbase();
-    // Overflow doesn't fail if nothing is to be written
-    if (bytes_to_write > 0)
-    {
-      // If the file hasn't been opened for writing, produce error
-      if (!this->is_open() || !(io_mode & std::ios_base::out))
-        return traits_type::eof();
-      // If gzipped file won't accept all bytes written to it, fail
-      if (gzwrite(file, this->pbase(), bytes_to_write) != bytes_to_write)
-        return traits_type::eof();
-      // Reset next pointer to point to pbase on success
-      this->pbump(-bytes_to_write);
-    }
-  }
-  // Write extra character to file if not EOF
-  else if (!traits_type::eq_int_type(c, traits_type::eof()))
-  {
-    // If the file hasn't been opened for writing, produce error
-    if (!this->is_open() || !(io_mode & std::ios_base::out))
-      return traits_type::eof();
-    // Impromptu char buffer (allows "unbuffered" output)
-    char_type last_char = traits_type::to_char_type(c);
-    // If gzipped file won't accept this character, fail
-    if (gzwrite(file, &last_char, 1) != 1)
-      return traits_type::eof();
-  }
-
-  // If you got here, you have succeeded (even if c was EOF)
-  // The return value should therefore be non-EOF
-  if (traits_type::eq_int_type(c, traits_type::eof()))
-    return traits_type::not_eof(c);
-  else
-    return c;
-}
-
-// Assign new buffer
-std::streambuf*
-gzfilebuf::setbuf(char_type* p,
-                  std::streamsize n)
-{
-  // First make sure stuff is sync'ed, for safety
-  if (this->sync() == -1)
-    return NULL;
-  // If buffering is turned off on purpose via setbuf(0,0), still allocate one...
-  // "Unbuffered" only really refers to put [27.8.1.4.10], while get needs at
-  // least a buffer of size 1 (very inefficient though, therefore make it bigger?)
-  // This follows from [27.5.2.4.3]/12 (gptr needs to point at something, it seems)
-  if (!p || !n)
-  {
-    // Replace existing buffer (if any) with small internal buffer
-    this->disable_buffer();
-    buffer = NULL;
-    buffer_size = 0;
-    own_buffer = true;
-    this->enable_buffer();
-  }
-  else
-  {
-    // Replace existing buffer (if any) with external buffer
-    this->disable_buffer();
-    buffer = p;
-    buffer_size = n;
-    own_buffer = false;
-    this->enable_buffer();
-  }
-  return this;
-}
-
-// Write put area to gzipped file (i.e. ensures that put area is empty)
-int
-gzfilebuf::sync()
-{
-  return traits_type::eq_int_type(this->overflow(), traits_type::eof()) ? -1 : 0;
-}
-
-/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
-
-// Allocate internal buffer
-void
-gzfilebuf::enable_buffer()
-{
-  // If internal buffer required, allocate one
-  if (own_buffer && !buffer)
-  {
-    // Check for buffered vs. "unbuffered"
-    if (buffer_size > 0)
-    {
-      // Allocate internal buffer
-      buffer = new char_type[buffer_size];
-      // Get area starts empty and will be expanded by underflow as need arises
-      this->setg(buffer, buffer, buffer);
-      // Setup entire internal buffer as put area.
-      // The one-past-end pointer actually points to the last element of the buffer,
-      // so that overflow(c) can safely add the extra character c to the sequence.
-      // These pointers remain in place for the duration of the buffer
-      this->setp(buffer, buffer + buffer_size - 1);
-    }
-    else
-    {
-      // Even in "unbuffered" case, (small?) get buffer is still required
-      buffer_size = SMALLBUFSIZE;
-      buffer = new char_type[buffer_size];
-      this->setg(buffer, buffer, buffer);
-      // "Unbuffered" means no put buffer
-      this->setp(0, 0);
-    }
-  }
-  else
-  {
-    // If buffer already allocated, reset buffer pointers just to make sure no
-    // stale chars are lying around
-    this->setg(buffer, buffer, buffer);
-    this->setp(buffer, buffer + buffer_size - 1);
-  }
-}
-
-// Destroy internal buffer
-void
-gzfilebuf::disable_buffer()
-{
-  // If internal buffer exists, deallocate it
-  if (own_buffer && buffer)
-  {
-    // Preserve unbuffered status by zeroing size
-    if (!this->pbase())
-      buffer_size = 0;
-    delete[] buffer;
-    buffer = NULL;
-    this->setg(0, 0, 0);
-    this->setp(0, 0);
-  }
-  else
-  {
-    // Reset buffer pointers to initial state if external buffer exists
-    this->setg(buffer, buffer, buffer);
-    if (buffer)
-      this->setp(buffer, buffer + buffer_size - 1);
-    else
-      this->setp(0, 0);
-  }
-}
-
-/*****************************************************************************/
-
-// Default constructor initializes stream buffer
-gzifstream::gzifstream()
-: std::istream(NULL), sb()
-{ this->init(&sb); }
-
-// Initialize stream buffer and open file
-gzifstream::gzifstream(const char* name,
-                       std::ios_base::openmode mode)
-: std::istream(NULL), sb()
-{
-  this->init(&sb);
-  this->open(name, mode);
-}
-
-// Initialize stream buffer and attach to file
-gzifstream::gzifstream(int fd,
-                       std::ios_base::openmode mode)
-: std::istream(NULL), sb()
-{
-  this->init(&sb);
-  this->attach(fd, mode);
-}
-
-// Open file and go into fail() state if unsuccessful
-void
-gzifstream::open(const char* name,
-                 std::ios_base::openmode mode)
-{
-  if (!sb.open(name, mode | std::ios_base::in))
-    this->setstate(std::ios_base::failbit);
-  else
-    this->clear();
-}
-
-// Attach to file and go into fail() state if unsuccessful
-void
-gzifstream::attach(int fd,
-                   std::ios_base::openmode mode)
-{
-  if (!sb.attach(fd, mode | std::ios_base::in))
-    this->setstate(std::ios_base::failbit);
-  else
-    this->clear();
-}
-
-// Close file
-void
-gzifstream::close()
-{
-  if (!sb.close())
-    this->setstate(std::ios_base::failbit);
-}
-
-/*****************************************************************************/
-
-// Default constructor initializes stream buffer
-gzofstream::gzofstream()
-: std::ostream(NULL), sb()
-{ this->init(&sb); }
-
-// Initialize stream buffer and open file
-gzofstream::gzofstream(const char* name,
-                       std::ios_base::openmode mode)
-: std::ostream(NULL), sb()
-{
-  this->init(&sb);
-  this->open(name, mode);
-}
-
-// Initialize stream buffer and attach to file
-gzofstream::gzofstream(int fd,
-                       std::ios_base::openmode mode)
-: std::ostream(NULL), sb()
-{
-  this->init(&sb);
-  this->attach(fd, mode);
-}
-
-// Open file and go into fail() state if unsuccessful
-void
-gzofstream::open(const char* name,
-                 std::ios_base::openmode mode)
-{
-  if (!sb.open(name, mode | std::ios_base::out))
-    this->setstate(std::ios_base::failbit);
-  else
-    this->clear();
-}
-
-// Attach to file and go into fail() state if unsuccessful
-void
-gzofstream::attach(int fd,
-                   std::ios_base::openmode mode)
-{
-  if (!sb.attach(fd, mode | std::ios_base::out))
-    this->setstate(std::ios_base::failbit);
-  else
-    this->clear();
-}
-
-// Close file
-void
-gzofstream::close()
-{
-  if (!sb.close())
-    this->setstate(std::ios_base::failbit);
-}
Index: trunk/minix/lib/zlib-1.2.3/contrib/iostream3/zfstream.h
===================================================================
--- trunk/minix/lib/zlib-1.2.3/contrib/iostream3/zfstream.h	(revision 9)
+++ 	(revision )
@@ -1,466 +1,0 @@
-/*
- * A C++ I/O streams interface to the zlib gz* functions
- *
- * by Ludwig Schwardt <schwardt@sun.ac.za>
- * original version by Kevin Ruland <kevin@rodin.wustl.edu>
- *
- * This version is standard-compliant and compatible with gcc 3.x.
- */
-
-#ifndef ZFSTREAM_H
-#define ZFSTREAM_H
-
-#include <istream>  // not iostream, since we don't need cin/cout
-#include <ostream>
-#include "zlib.h"
-
-/*****************************************************************************/
-
-/**
- *  @brief  Gzipped file stream buffer class.
- *
- *  This class implements basic_filebuf for gzipped files. It doesn't yet support
- *  seeking (allowed by zlib but slow/limited), putback and read/write access
- *  (tricky). Otherwise, it attempts to be a drop-in replacement for the standard
- *  file streambuf.
-*/
-class gzfilebuf : public std::streambuf
-{
-public:
-  //  Default constructor.
-  gzfilebuf();
-
-  //  Destructor.
-  virtual
-  ~gzfilebuf();
-
-  /**
-   *  @brief  Set compression level and strategy on the fly.
-   *  @param  comp_level  Compression level (see zlib.h for allowed values)
-   *  @param  comp_strategy  Compression strategy (see zlib.h for allowed values)
-   *  @return  Z_OK on success, Z_STREAM_ERROR otherwise.
-   *
-   *  Unfortunately, these parameters cannot be modified separately, as the
-   *  previous zfstream version assumed. Since the strategy is seldom changed,
-   *  it can default and setcompression(level) then becomes like the old
-   *  setcompressionlevel(level).
-  */
-  int
-  setcompression(int comp_level,
-                 int comp_strategy = Z_DEFAULT_STRATEGY);
-
-  /**
-   *  @brief  Check if file is open.
-   *  @return  True if file is open.
-  */
-  bool
-  is_open() const { return (file != NULL); }
-
-  /**
-   *  @brief  Open gzipped file.
-   *  @param  name  File name.
-   *  @param  mode  Open mode flags.
-   *  @return  @c this on success, NULL on failure.
-  */
-  gzfilebuf*
-  open(const char* name,
-       std::ios_base::openmode mode);
-
-  /**
-   *  @brief  Attach to already open gzipped file.
-   *  @param  fd  File descriptor.
-   *  @param  mode  Open mode flags.
-   *  @return  @c this on success, NULL on failure.
-  */
-  gzfilebuf*
-  attach(int fd,
-         std::ios_base::openmode mode);
-
-  /**
-   *  @brief  Close gzipped file.
-   *  @return  @c this on success, NULL on failure.
-  */
-  gzfilebuf*
-  close();
-
-protected:
-  /**
-   *  @brief  Convert ios open mode int to mode string used by zlib.
-   *  @return  True if valid mode flag combination.
-  */
-  bool
-  open_mode(std::ios_base::openmode mode,
-            char* c_mode) const;
-
-  /**
-   *  @brief  Number of characters available in stream buffer.
-   *  @return  Number of characters.
-   *
-   *  This indicates number of characters in get area of stream buffer.
-   *  These characters can be read without accessing the gzipped file.
-  */
-  virtual std::streamsize
-  showmanyc();
-
-  /**
-   *  @brief  Fill get area from gzipped file.
-   *  @return  First character in get area on success, EOF on error.
-   *
-   *  This actually reads characters from gzipped file to stream
-   *  buffer. Always buffered.
-  */
-  virtual int_type
-  underflow();
-
-  /**
-   *  @brief  Write put area to gzipped file.
-   *  @param  c  Extra character to add to buffer contents.
-   *  @return  Non-EOF on success, EOF on error.
-   *
-   *  This actually writes characters in stream buffer to
-   *  gzipped file. With unbuffered output this is done one
-   *  character at a time.
-  */
-  virtual int_type
-  overflow(int_type c = traits_type::eof());
-
-  /**
-   *  @brief  Installs external stream buffer.
-   *  @param  p  Pointer to char buffer.
-   *  @param  n  Size of external buffer.
-   *  @return  @c this on success, NULL on failure.
-   *
-   *  Call setbuf(0,0) to enable unbuffered output.
-  */
-  virtual std::streambuf*
-  setbuf(char_type* p,
-         std::streamsize n);
-
-  /**
-   *  @brief  Flush stream buffer to file.
-   *  @return  0 on success, -1 on error.
-   *
-   *  This calls underflow(EOF) to do the job.
-  */
-  virtual int
-  sync();
-
-//
-// Some future enhancements
-//
-//  virtual int_type uflow();
-//  virtual int_type pbackfail(int_type c = traits_type::eof());
-//  virtual pos_type
-//  seekoff(off_type off,
-//          std::ios_base::seekdir way,
-//          std::ios_base::openmode mode = std::ios_base::in|std::ios_base::out);
-//  virtual pos_type
-//  seekpos(pos_type sp,
-//          std::ios_base::openmode mode = std::ios_base::in|std::ios_base::out);
-
-private:
-  /**
-   *  @brief  Allocate internal buffer.
-   *
-   *  This function is safe to call multiple times. It will ensure
-   *  that a proper internal buffer exists if it is required. If the
-   *  buffer already exists or is external, the buffer pointers will be
-   *  reset to their original state.
-  */
-  void
-  enable_buffer();
-
-  /**
-   *  @brief  Destroy internal buffer.
-   *
-   *  This function is safe to call multiple times. It will ensure
-   *  that the internal buffer is deallocated if it exists. In any
-   *  case, it will also reset the buffer pointers.
-  */
-  void
-  disable_buffer();
-
-  /**
-   *  Underlying file pointer.
-  */
-  gzFile file;
-
-  /**
-   *  Mode in which file was opened.
-  */
-  std::ios_base::openmode io_mode;
-
-  /**
-   *  @brief  True if this object owns file descriptor.
-   *
-   *  This makes the class responsible for closing the file
-   *  upon destruction.
-  */
-  bool own_fd;
-
-  /**
-   *  @brief  Stream buffer.
-   *
-   *  For simplicity this remains allocated on the free store for the
-   *  entire life span of the gzfilebuf object, unless replaced by setbuf.
-  */
-  char_type* buffer;
-
-  /**
-   *  @brief  Stream buffer size.
-   *
-   *  Defaults to system default buffer size (typically 8192 bytes).
-   *  Modified by setbuf.
-  */
-  std::streamsize buffer_size;
-
-  /**
-   *  @brief  True if this object owns stream buffer.
-   *
-   *  This makes the class responsible for deleting the buffer
-   *  upon destruction.
-  */
-  bool own_buffer;
-};
-
-/*****************************************************************************/
-
-/**
- *  @brief  Gzipped file input stream class.
- *
- *  This class implements ifstream for gzipped files. Seeking and putback
- *  is not supported yet.
-*/
-class gzifstream : public std::istream
-{
-public:
-  //  Default constructor
-  gzifstream();
-
-  /**
-   *  @brief  Construct stream on gzipped file to be opened.
-   *  @param  name  File name.
-   *  @param  mode  Open mode flags (forced to contain ios::in).
-  */
-  explicit
-  gzifstream(const char* name,
-             std::ios_base::openmode mode = std::ios_base::in);
-
-  /**
-   *  @brief  Construct stream on already open gzipped file.
-   *  @param  fd    File descriptor.
-   *  @param  mode  Open mode flags (forced to contain ios::in).
-  */
-  explicit
-  gzifstream(int fd,
-             std::ios_base::openmode mode = std::ios_base::in);
-
-  /**
-   *  Obtain underlying stream buffer.
-  */
-  gzfilebuf*
-  rdbuf() const
-  { return const_cast<gzfilebuf*>(&sb); }
-
-  /**
-   *  @brief  Check if file is open.
-   *  @return  True if file is open.
-  */
-  bool
-  is_open() { return sb.is_open(); }
-
-  /**
-   *  @brief  Open gzipped file.
-   *  @param  name  File name.
-   *  @param  mode  Open mode flags (forced to contain ios::in).
-   *
-   *  Stream will be in state good() if file opens successfully;
-   *  otherwise in state fail(). This differs from the behavior of
-   *  ifstream, which never sets the state to good() and therefore
-   *  won't allow you to reuse the stream for a second file unless
-   *  you manually clear() the state. The choice is a matter of
-   *  convenience.
-  */
-  void
-  open(const char* name,
-       std::ios_base::openmode mode = std::ios_base::in);
-
-  /**
-   *  @brief  Attach to already open gzipped file.
-   *  @param  fd  File descriptor.
-   *  @param  mode  Open mode flags (forced to contain ios::in).
-   *
-   *  Stream will be in state good() if attach succeeded; otherwise
-   *  in state fail().
-  */
-  void
-  attach(int fd,
-         std::ios_base::openmode mode = std::ios_base::in);
-
-  /**
-   *  @brief  Close gzipped file.
-   *
-   *  Stream will be in state fail() if close failed.
-  */
-  void
-  close();
-
-private:
-  /**
-   *  Underlying stream buffer.
-  */
-  gzfilebuf sb;
-};
-
-/*****************************************************************************/
-
-/**
- *  @brief  Gzipped file output stream class.
- *
- *  This class implements ofstream for gzipped files. Seeking and putback
- *  is not supported yet.
-*/
-class gzofstream : public std::ostream
-{
-public:
-  //  Default constructor
-  gzofstream();
-
-  /**
-   *  @brief  Construct stream on gzipped file to be opened.
-   *  @param  name  File name.
-   *  @param  mode  Open mode flags (forced to contain ios::out).
-  */
-  explicit
-  gzofstream(const char* name,
-             std::ios_base::openmode mode = std::ios_base::out);
-
-  /**
-   *  @brief  Construct stream on already open gzipped file.
-   *  @param  fd    File descriptor.
-   *  @param  mode  Open mode flags (forced to contain ios::out).
-  */
-  explicit
-  gzofstream(int fd,
-             std::ios_base::openmode mode = std::ios_base::out);
-
-  /**
-   *  Obtain underlying stream buffer.
-  */
-  gzfilebuf*
-  rdbuf() const
-  { return const_cast<gzfilebuf*>(&sb); }
-
-  /**
-   *  @brief  Check if file is open.
-   *  @return  True if file is open.
-  */
-  bool
-  is_open() { return sb.is_open(); }
-
-  /**
-   *  @brief  Open gzipped file.
-   *  @param  name  File name.
-   *  @param  mode  Open mode flags (forced to contain ios::out).
-   *
-   *  Stream will be in state good() if file opens successfully;
-   *  otherwise in state fail(). This differs from the behavior of
-   *  ofstream, which never sets the state to good() and therefore
-   *  won't allow you to reuse the stream for a second file unless
-   *  you manually clear() the state. The choice is a matter of
-   *  convenience.
-  */
-  void
-  open(const char* name,
-       std::ios_base::openmode mode = std::ios_base::out);
-
-  /**
-   *  @brief  Attach to already open gzipped file.
-   *  @param  fd  File descriptor.
-   *  @param  mode  Open mode flags (forced to contain ios::out).
-   *
-   *  Stream will be in state good() if attach succeeded; otherwise
-   *  in state fail().
-  */
-  void
-  attach(int fd,
-         std::ios_base::openmode mode = std::ios_base::out);
-
-  /**
-   *  @brief  Close gzipped file.
-   *
-   *  Stream will be in state fail() if close failed.
-  */
-  void
-  close();
-
-private:
-  /**
-   *  Underlying stream buffer.
-  */
-  gzfilebuf sb;
-};
-
-/*****************************************************************************/
-
-/**
- *  @brief  Gzipped file output stream manipulator class.
- *
- *  This class defines a two-argument manipulator for gzofstream. It is used
- *  as base for the setcompression(int,int) manipulator.
-*/
-template<typename T1, typename T2>
-  class gzomanip2
-  {
-  public:
-    // Allows insertor to peek at internals
-    template <typename Ta, typename Tb>
-      friend gzofstream&
-      operator<<(gzofstream&,
-                 const gzomanip2<Ta,Tb>&);
-
-    // Constructor
-    gzomanip2(gzofstream& (*f)(gzofstream&, T1, T2),
-              T1 v1,
-              T2 v2);
-  private:
-    // Underlying manipulator function
-    gzofstream&
-    (*func)(gzofstream&, T1, T2);
-
-    // Arguments for manipulator function
-    T1 val1;
-    T2 val2;
-  };
-
-/*****************************************************************************/
-
-// Manipulator function thunks through to stream buffer
-inline gzofstream&
-setcompression(gzofstream &gzs, int l, int s = Z_DEFAULT_STRATEGY)
-{
-  (gzs.rdbuf())->setcompression(l, s);
-  return gzs;
-}
-
-// Manipulator constructor stores arguments
-template<typename T1, typename T2>
-  inline
-  gzomanip2<T1,T2>::gzomanip2(gzofstream &(*f)(gzofstream &, T1, T2),
-                              T1 v1,
-                              T2 v2)
-  : func(f), val1(v1), val2(v2)
-  { }
-
-// Insertor applies underlying manipulator function to stream
-template<typename T1, typename T2>
-  inline gzofstream&
-  operator<<(gzofstream& s, const gzomanip2<T1,T2>& m)
-  { return (*m.func)(s, m.val1, m.val2); }
-
-// Insert this onto stream to simplify setting of compression level
-inline gzomanip2<int,int>
-setcompression(int l, int s = Z_DEFAULT_STRATEGY)
-{ return gzomanip2<int,int>(&setcompression, l, s); }
-
-#endif // ZFSTREAM_H