#ifndef STLPLUS_PORTABILITY_FIXES
#define STLPLUS_PORTABILITY_FIXES
////////////////////////////////////////////////////////////////////////////////

//   Author:    Andy Rushton
//   Copyright: (c) Southampton University 1999-2004
//              (c) Andy Rushton           2004-2009
//   License:   BSD License, see ../docs/license.html

//   Contains work arounds for OS or Compiler specific problems to try to make
//   them look more alike

//   It is strongly recommended that this header be included as the first
//   #include in every source file

////////////////////////////////////////////////////////////////////////////////

////////////////////////////////////////////////////////////////////////////////
// Problem with MicroSoft defining two different macros to identify Windows
////////////////////////////////////////////////////////////////////////////////

#if defined(_WIN32) || defined(_WIN32_WCE)
#define MSWINDOWS
#endif

////////////////////////////////////////////////////////////////////////////////
// Problems with unnecessary or unfixable compiler warnings
////////////////////////////////////////////////////////////////////////////////

#ifdef _MSC_VER
// Microsoft Visual Studio
// shut up the following irritating warnings
//   4786 - VC6, identifier string exceeded maximum allowable length and was truncated (only affects debugger)
//   4305 - VC6, identifier type was converted to a smaller type
//   4503 - VC6, decorated name was longer than the maximum the compiler allows (only affects debugger)
//   4309 - VC6, type conversion operation caused a constant to exceeded the space allocated for it
//   4290 - VC6, C++ exception specification ignored
//   4800 - VC6, forcing value to bool 'true' or 'false' (performance warning)
//   4675 - VC7.1, "change" in function overload resolution _might_ have altered program
//   4996 - VC8, 'xxxx' was declared deprecated
#pragma warning(disable: 4786 4305 4503 4309 4290 4800 4675 4996)
#endif

#ifdef __BORLANDC__
// Borland
// Shut up the following irritating warnings
//   8026 - Functions with exception specifications are not expanded inline
//   8027 - Functions with xxx are not expanded inline
#pragma warn -8026
#pragma warn -8027
#endif

////////////////////////////////////////////////////////////////////////////////
// Problems with redefinition of min/max in various different versions of library headers
////////////////////////////////////////////////////////////////////////////////

// The Windows headers define macros called max/min which conflict with the templates std::max and std::min.
// So, to avoid conflicts, MS removed the std::max/min rather than fixing the problem!
// From Visual Studio .NET (SV7, compiler version 13.00) the STL templates have been added correctly.
// For MFC compatibility, only undef min and max in non-MFC programs - some bits of MFC
// use macro min/max in headers. 

// I've created extra template function definitions minimum/maximum that avoid all the problems above

namespace stlplus
{
  template<typename T> const T& maximum(const T& l, const T& r) {return l > r ? l : r;}
  template<typename T> const T& minimum(const T& l, const T& r) {return l < r ? l : r;}
}

////////////////////////////////////////////////////////////////////////////////
// Problems with differences between namespaces
////////////////////////////////////////////////////////////////////////////////

// Note: not sure of the relevance of this - maybe deprecated?
// problem in gcc pre-v3 where the sub-namespaces in std aren't present
// this mean that the statement "using namespace std::rel_ops" created an error because the namespace didn't exist

// I've done a fix here that creates an empty namespace for this case, but I
// do *not* try to move the contents of std::rel_ops into namespace std
// This fix only works if you use "using namespace std::rel_ops" to bring in the template relational operators (e.g. != defined i.t.o. ==)

#ifdef __GNUC__
namespace std
{
  namespace rel_ops
  {
  }
}
#endif

////////////////////////////////////////////////////////////////////////////////
// problems with missing functions
////////////////////////////////////////////////////////////////////////////////

#ifdef MSWINDOWS
unsigned sleep(unsigned seconds);
#else
#include <unistd.h>
#endif

////////////////////////////////////////////////////////////////////////////////
// Function for establishing endian-ness
////////////////////////////////////////////////////////////////////////////////
// Different machine architectures store data using different byte orders.
// This is referred to as Big- and Little-Endian Byte Ordering. 
//
// The issue is: where does a pointer to an integer type actually point?
//
// In both conventions, the address points to the left of the word but:
// Big-Endian - The most significant byte is on the left end of a word
// Little-Endian - The least significant byte is on the left end of a word
//
// Bytes are addressed left to right, so in big-endian order byte 0 is the
// msB, whereas in little-endian order byte 0 is the lsB. For example,
// Intel-based machines store data in little-endian byte order so byte 0 is
// the lsB.
//
// This function establishes byte order at run-time

namespace stlplus
{
  bool little_endian(void);
}

////////////////////////////////////////////////////////////////////////////////
#endif