Kernel.h

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#ifndef GAUDIKERNEL_KERNEL_H
#define GAUDIKERNEL_KERNEL_H

// Some pragmas to avoid warnings in VisualC
#ifdef _WIN32
// Disable warning C4786: identifier was truncated to '255' characters in the debug information
#pragma warning( disable : 4786 )
// Disable warning C4291: no matching operator delete found; memory will not be freed if initialization throws an
// exception
#pragma warning( disable : 4291 )
// Disable warning C4250: inheritance via dominance
#pragma warning( disable : 4250 )
#endif

// Large integer definition depends of the platform
#ifdef _WIN32
#ifndef NO_LONGLONG_TYPEDEF
typedef __int64 longlong;
typedef unsigned __int64 ulonglong;
#endif

#ifndef LONGLONG_MAX
#define LONGLONG_MAX 0x7FFFFFFFFFFFFFFFLL
#endif
#ifndef LONGLONG_MIN
#define LONGLONG_MIN 0x8000000000000000LL
#endif

#ifndef ULONGLONG_MAX
#define ULONGLONG_MAX 0xFFFFFFFFFFFFFFFFLL
#endif
#ifndef ULONGLONG_MIN
#define ULONGLONG_MIN 0x0000000000000000LL
#endif
#elif defined( __linux ) || defined( __APPLE__ )
#ifndef NO_LONGLONG_TYPEDEF
typedef long long int longlong;
typedef unsigned long long int ulonglong;
#endif

#ifndef LONGLONG_MAX
#define LONGLONG_MAX 0x7FFFFFFFFFFFFFFFLL
#endif
#ifndef LONGLONG_MIN
#define LONGLONG_MIN 0x8000000000000000LL
#endif

#ifndef ULONGLONG_MAX
#define ULONGLONG_MAX 0xfFFFFFFFFFFFFFFFLL
#endif
#ifndef ULONGLONG_MIN
#define ULONGLONG_MIN 0x0000000000000000LL
#endif
#else
// This will not really work !!
struct __longlong {
public:
  long __data[2];
};
typedef __longlong longlong;
typedef __longlong ulonglong;
static const __longlong LONGLONG_MAX   = {0x7FFFFFFF, 0xFFFFFFFF};
static const __longlong LONGLONG_MIN   = {0x80000000, 0x00000000};
static const __ulonglong ULONGLONG_MAX = {0xFFFFFFFF, 0xFFFFFFFF};
static const __ulonglong ULONGLONG_MIN = {0x00000000, 0x00000000};
#endif // linux

#ifdef _WIN32
#define TEMPLATE_SPECIALIZATION template <>
#elif defined( __linux ) || defined( __APPLE__ )
#define TEMPLATE_SPECIALIZATION
#endif

// ---------------------------------- Symbol visibility macros (begin)
// Enabled on in Gaudi v21 mode
#if !defined( GAUDI_V20_COMPAT ) || defined( G21_HIDE_SYMBOLS )
// These macros will allow selection on exported symbols
// taken from http://gcc.gnu.org/wiki/Visibility
#if __GNUC__ >= 4 && !defined( __CINT__ )
#define GAUDI_HASCLASSVISIBILITY
#endif

#ifdef _WIN32
/*
#  define GAUDI_IMPORT __declspec(dllimport)
#  define GAUDI_EXPORT __declspec(dllexport)
#  define GAUDI_LOCAL
*/
// The symbol visibility is disabled on Win32 because it is not possible to
// make coexists the gcc and VC ways.
#define GAUDI_IMPORT
#define GAUDI_EXPORT
#define GAUDI_LOCAL
#else
#if defined( GAUDI_HASCLASSVISIBILITY )
#define GAUDI_IMPORT __attribute__( ( visibility( "default" ) ) )
#define GAUDI_EXPORT __attribute__( ( visibility( "default" ) ) )
#define GAUDI_LOCAL __attribute__( ( visibility( "hidden" ) ) )
#else
#define GAUDI_IMPORT
#define GAUDI_EXPORT
#define GAUDI_LOCAL
#endif
#endif

// Define GAUDI_API for DLL builds
#ifdef GAUDI_LINKER_LIBRARY
#define GAUDI_API GAUDI_EXPORT
#else
#define GAUDI_API GAUDI_IMPORT
#endif
#else
// Dummy definitions for the backward compatibility mode.
#define GAUDI_API
#define GAUDI_IMPORT
#define GAUDI_EXPORT
#define GAUDI_LOCAL
#endif // GAUDI_V20_COMPAT
// ---------------------------------- Symbol visibility macros (end)

// -------------- LIKELY/UNLIKELY macros (begin)
// Use compiler hinting to improve branch prediction for linux
#ifdef __GNUC__
#define LIKELY( x ) __builtin_expect( ( x ), 1 )
#define UNLIKELY( x ) __builtin_expect( ( x ), 0 )
#else
#define LIKELY( x ) x
#define UNLIKELY( x ) x
#endif
// -------------- LIKELY/UNLIKELY macros (end)

#endif // GAUDIKERNEL_KERNEL_H