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// Copyright (C) by Josh Blum. See LICENSE.txt for licensing information.
#ifndef INCLUDED_GRAS_GRAS_HPP
#define INCLUDED_GRAS_GRAS_HPP
#include <ciso646>
// http://gcc.gnu.org/wiki/Visibility
// Generic helper definitions for shared library support
#if defined _WIN32 || defined __CYGWIN__
#define GRAS_HELPER_DLL_IMPORT __declspec(dllimport)
#define GRAS_HELPER_DLL_EXPORT __declspec(dllexport)
#define GRAS_HELPER_DLL_LOCAL
#else
#if __GNUC__ >= 4
#define GRAS_HELPER_DLL_IMPORT __attribute__ ((visibility ("default")))
#define GRAS_HELPER_DLL_EXPORT __attribute__ ((visibility ("default")))
#define GRAS_HELPER_DLL_LOCAL __attribute__ ((visibility ("hidden")))
#else
#define GRAS_HELPER_DLL_IMPORT
#define GRAS_HELPER_DLL_EXPORT
#define GRAS_HELPER_DLL_LOCAL
#endif
#endif
#define GRAS_DLL //always build a dll
// Now we use the generic helper definitions above to define GRAS_API and GRAS_LOCAL.
// GRAS_API is used for the public API symbols. It either DLL imports or DLL exports (or does nothing for static build)
// GRAS_LOCAL is used for non-api symbols.
#ifdef GRAS_DLL // defined if GRAS is compiled as a DLL
#ifdef GRAS_DLL_EXPORTS // defined if we are building the GRAS DLL (instead of using it)
#define GRAS_API GRAS_HELPER_DLL_EXPORT
#define GRAS_EXTERN
#else
#define GRAS_API GRAS_HELPER_DLL_IMPORT
#define GRAS_EXTERN extern
#endif // GRAS_DLL_EXPORTS
#define GRAS_LOCAL GRAS_HELPER_DLL_LOCAL
#else // GRAS_DLL is not defined: this means GRAS is a static lib.
#define GRAS_API
#define GRAS_LOCAL
#define GRAS_EXTERN
#endif // GRAS_DLL
#define GRAS_MAX_ALIGNMENT 64
//define cross platform attribute macros
#if defined(GRAS_DEBUG)
#define GRAS_FORCE_INLINE inline
#elif defined(BOOST_MSVC)
#define GRAS_FORCE_INLINE __forceinline
#elif defined(__GNUG__) && __GNUG__ >= 4
#define GRAS_FORCE_INLINE inline __attribute__((always_inline))
#else
#define GRAS_FORCE_INLINE inline
#endif
//want to have fun with branch prediction hints?
#ifdef __GNUC__
#define GRAS_LIKELY(expr) (__builtin_expect(bool(expr), 1))
#define GRAS_UNLIKELY(expr) (__builtin_expect(bool(expr), 0))
#else
#define GRAS_LIKELY(expr) (expr)
#define GRAS_UNLIKELY(expr) (expr)
#endif
//! A fixture for static initialization code
#define GRAS_STATIC_BLOCK(name) \
static struct name ## _static_fixture__ \
{ \
name ## _static_fixture__(void); \
} name ## _static_fixture_instance__; \
name ## _static_fixture__::name ## _static_fixture__(void)
namespace gras
{
//! Typedef for absolute item indexes
typedef unsigned long long item_index_t;
//! Forward declare for element base class
struct ElementImpl;
//! Forward declare for block class
struct Block;
}
#endif /*INCLUDED_GRAS_GRAS_HPP*/
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