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/*=========================================================================

  Program:   Insight Segmentation & Registration Toolkit
  Module:    $RCSfile$
  Language:  C++
  Date:      $Date$
  Version:   $Revision$

  Copyright (c) 2002 Insight Consortium. All rights reserved.
  See ITKCopyright.txt or http://www.itk.org/HTML/Copyright.htm for details.

     This software is distributed WITHOUT ANY WARRANTY; without even 
     the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR 
     PURPOSE.  See the above copyright notices for more information.

=========================================================================*/
/**
 * Include header files as a function of the build process, compiler,
 * and operating system.
 */
#ifndef cmStandardIncludes_h
#define cmStandardIncludes_h

// include configure generated  header to define
// CMAKE_NO_ANSI_STREAM_HEADERS and CMAKE_NO_STD_NAMESPACE
#if defined(CMAKE_HAS_AUTOCONF) || defined(CMAKE_BUILD_WITH_CMAKE)
#include "cmConfigure.h"
#endif

#ifdef _MSC_VER
#pragma warning ( disable : 4786 )
#pragma warning ( disable : 4503 )
#define CMAKE_NO_ANSI_FOR_SCOPE
#endif

#ifdef __ICL
#pragma warning ( disable : 985 )
#endif

#ifndef CMAKE_NO_ANSI_STREAM_HEADERS
#  include <fstream>
#  include <iostream>
#else
#  include <fstream.h>
#  include <iostream.h>
#endif

#if !defined(CMAKE_NO_ANSI_STRING_STREAM)
#  include <sstream>
#elif !defined(CMAKE_NO_ANSI_STREAM_HEADERS)
#  include <strstream>
#else
#  include <strstream.h>
#endif

// we must have stl with the standard include style
#include <vector>
#include <string>
#include <iterator>
#include <algorithm>
#include <functional>
#include <map>
#include <list>
#include <set>

// include the "c" string header
#include <string.h>

// if std:: is not supported, then just #define it away
#ifdef CMAKE_NO_STD_NAMESPACE
#define std 
#endif

// if the compiler does not support ansi for scoping of vars use a 
// #define hack
#ifdef CMAKE_NO_ANSI_FOR_SCOPE
#define for if(false) {} else for
#endif

// check for the 720 compiler on the SGI
// which has some strange properties that I don't think are worth
// checking for in a general way in configure
#if defined(__sgi) && !defined(__GNUC__)
#  if   (_COMPILER_VERSION >= 730)
#   define CM_SGI_CC_730
#  elif (_COMPILER_VERSION >= 720)
#   define CM_HAS_STD_BUT_NOT_FOR_IOSTREAM
#  endif
#endif

#ifdef __DECCXX_VER
# if __DECCXX_VER <= 60390008 
#  define CM_HAS_STD_BUT_NOT_FOR_IOSTREAM
# endif
#endif

#ifdef CM_HAS_STD_BUT_NOT_FOR_IOSTREAM
// some compilers have std:: but not for the stream library,
// so we have to bring it into the std namespace by hand.
namespace std {
using ::ostream;
using ::istream;
using ::ios;
using ::cout;
using ::cerr;
using ::cin;
using ::ifstream;
using ::ofstream;
  
#if !defined(CMAKE_NO_ANSI_STRING_STREAM)
  using ::stringstream;
#else
  using ::strstream;
#endif
  
using ::endl;
using ::ends;
using ::flush;
}
// The string class is missing these operators so add them
inline bool operator!=(std::string const& a, const char* b)
{ return !(a==std::string(b)); }

inline bool operator==(std::string const& a, const char* b)
{ return (a==std::string(b)); }
# endif  // end CM_SGI_CC_720

// use this class to shrink the size of symbols in .o files
// std::string is really basic_string<....lots of stuff....>
// when combined with a map or set, the symbols can be > 2000 chars!
struct cmStdString : public std::string
{
  typedef std::string StdString;
  typedef StdString::value_type             value_type;
  typedef StdString::pointer                pointer;
  typedef StdString::reference              reference;
  typedef StdString::const_reference        const_reference;
  typedef StdString::size_type              size_type;
  typedef StdString::difference_type        difference_type;
  typedef StdString::iterator               iterator;
  typedef StdString::const_iterator         const_iterator;
  typedef StdString::reverse_iterator       reverse_iterator;
  typedef StdString::const_reverse_iterator const_reverse_iterator;
  
  cmStdString(): StdString() {}
  cmStdString(const value_type* s): StdString(s) {}
  cmStdString(const value_type* s, size_type n): StdString(s, n) {}
  cmStdString(const StdString& s, size_type pos=0, size_type n=npos):
    StdString(s, pos, n) {}
};

// Define cmStringStream wrapper to hide differences between
// std::stringstream and the old strstream.
#if !defined(CMAKE_NO_ANSI_STRING_STREAM)
class cmStringStream: public std::ostringstream
{
public:
  cmStringStream() {}
private:
  cmStringStream(const cmStringStream&);
  void operator=(const cmStringStream&);
};
#else
class cmStrStreamCleanup
{
public:
  cmStrStreamCleanup(std::ostrstream& ostr): m_StrStream(ostr) {}
  ~cmStrStreamCleanup() { m_StrStream.rdbuf()->freeze(0); }
  static void IgnoreUnusedVariable(const cmStrStreamCleanup&) {}
protected:
  std::ostrstream& m_StrStream;
};

class cmStringStream: public std::ostrstream
{
public:
  typedef std::ostrstream Superclass;
  cmStringStream() {}
  std::string str()
    {
      cmStrStreamCleanup cleanup(*this);
      cmStrStreamCleanup::IgnoreUnusedVariable(cleanup);
      const char* ptr = this->Superclass::str();
      return std::string(ptr, ptr+this->pcount());
    }
private:
  cmStringStream(const cmStringStream&);
  void operator=(const cmStringStream&);
};
#endif

#endif