/* CoreGraphics - CGBase.h
   Copyright (c) 2000-2011 Apple Inc.
   All rights reserved. */

#ifndef CGBASE_H_
#define CGBASE_H_

#include <stdbool.h>
#include <stddef.h>
#include <float.h>

/* Definition of `__CG_HAS_COMPILER_ATTRIBUTE'. */

#if !defined(__CG_HAS_COMPILER_ATTRIBUTE)
# if defined(__has_attribute)
#  define __CG_HAS_COMPILER_ATTRIBUTE(attribute) __has_attribute(attribute)
# elif defined(__GNUC__) && __GNUC__ >= 4
#  define __CG_HAS_COMPILER_ATTRIBUTE(attribute) (1)
# else
#  define __CG_HAS_COMPILER_ATTRIBUTE(attribute) (0)
# endif
#endif

/* Definition of `__CG_HAS_COMPILER_EXTENSION'. */

#if !defined(__CG_HAS_COMPILER_EXTENSION)
# if defined(__has_extension)
#  define __CG_HAS_COMPILER_EXTENSION(extension) __has_extension(extension)
# elif defined(__has_feature)
#  define __CG_HAS_COMPILER_EXTENSION(extension) __has_feature(extension)
# else
#  define __CG_HAS_COMPILER_EXTENSION(extension) (0)
# endif
#endif

/* Define `__WIN32__' where appropriate if it's not already defined. */

# if defined(_WIN32) || defined(__CYGWIN32__)
#  define __WIN32__ 1
# endif

/* Definition of `CG_EXTERN'. */

#if !defined(CG_EXTERN)
#  if defined(__cplusplus)
#   define CG_EXTERN extern "C"
#  else
#   define CG_EXTERN extern
#  endif
#endif /* !defined(CG_EXTERN) */

/* Definition of `CG_LOCAL'. */

#if !defined(CG_LOCAL)
# if __CG_HAS_COMPILER_ATTRIBUTE(visibility)
#  if defined(__cplusplus)
#   define CG_LOCAL extern "C" __attribute__((visibility("hidden")))
#  else
#   define CG_LOCAL extern __attribute__((visibility("hidden")))
#  endif
# else
#  define CG_LOCAL CG_EXTERN
# endif
#endif /* !defined(CG_LOCAL) */

/* Definition of `CG_EXTERN_64` */

#if !defined(CG_EXTERN_64)
# if defined(__LP64__)
#  define CG_EXTERN_64 CG_EXTERN
# else /* !defined(__LP64__) */
#  define CG_EXTERN_64 CG_LOCAL
# endif /* defined(__LP64__) */
#endif /* !defined(CG_EXTERN_64) */

/* Definition of `CG_EXTERN_32` */

#if !defined(CG_EXTERN_32)
# if defined(__LP64__)
#  define CG_EXTERN_32 CG_LOCAL __attribute__((unused))
# else /* !defined(__LP64__) */
#  define CG_EXTERN_32 CG_EXTERN
# endif /* defined(__LP64__) */
#endif /* !defined(CG_EXTERN_32) */

/* Definition of `CG_LOCAL_64` */

#if !defined(CG_LOCAL_64)
# if defined(__LP64__)
#  define CG_LOCAL_64 CG_LOCAL
# else /* !defined(__LP64__) */
#  define CG_LOCAL_64 CG_LOCAL __attribute__((unused))
# endif /* defined(__LP64__) */
#endif /* !defined(CG_LOCAL_64) */

/* Definition of `CG_LOCAL_32` */

#if !defined(CG_LOCAL_32)
# if defined(__LP64__)
#  define CG_LOCAL_32 CG_LOCAL __attribute__((unused))
# else /* !defined(__LP64__) */
#  define CG_LOCAL_32 CG_LOCAL
# endif /* defined(__LP64__) */
#endif /* !defined(CG_LOCAL_32) */

/* Definition of `__CG_DEPRECATED'. */

#if !defined(__CG_DEPRECATED)
# if __CG_HAS_COMPILER_ATTRIBUTE(deprecated) && !defined(CG_BUILDING_CG)
#  define __CG_DEPRECATED __attribute__((deprecated))
# else
#  define __CG_DEPRECATED
# endif
#endif

/* Definition of `__CG_DEPRECATED_WITH_MSG'. */

#if !defined(__CG_DEPRECATED_WITH_MSG)
# if __CG_HAS_COMPILER_ATTRIBUTE(deprecated)				      \
    && __CG_HAS_COMPILER_EXTENSION(attribute_deprecated_with_message)	      \
    && !defined(CG_BUILDING_CG)
#  define __CG_DEPRECATED_WITH_MSG(msg) __attribute__((deprecated(msg)))
# else
#  define __CG_DEPRECATED_WITH_MSG(msg) __CG_DEPRECATED
# endif
#endif

/* Definition of `__CG_DEPRECATED_ENUMERATOR'. */

#if !defined(__CG_DEPRECATED_ENUMERATOR)
# if __CG_HAS_COMPILER_ATTRIBUTE(deprecated)				      \
   && __CG_HAS_COMPILER_EXTENSION(enumerator_attributes)		      \
   && !defined(CG_BUILDING_CG)
#  define __CG_DEPRECATED_ENUMERATOR __attribute__((deprecated))
# else
#  define __CG_DEPRECATED_ENUMERATOR
# endif
#endif

/* Definition of `__CG_DEPRECATED_ENUMERATOR_WITH_MSG'. */

#if !defined(__CG_DEPRECATED_ENUMERATOR_WITH_MSG)
# if __CG_HAS_COMPILER_ATTRIBUTE(deprecated)				      \
&& __CG_HAS_COMPILER_EXTENSION(attribute_deprecated_with_message) \
&& __CG_HAS_COMPILER_EXTENSION(enumerator_attributes)		      \
&& !defined(CG_BUILDING_CG)
#  define __CG_DEPRECATED_ENUMERATOR_WITH_MSG(msg) __attribute__((deprecated(msg)))
# else
#  define __CG_DEPRECATED_ENUMERATOR_WITH_MSG(msg) __CG_DEPRECATED_ENUMERATOR
# endif
#endif

/* Define `CG_AVAILABLE_STARTING' and `CG_AVAILABLE_BUT_DEPRECATED'. */

#if defined(CG_BUILDING_CG)
# define CG_AVAILABLE_STARTING(_mac, _iphone)
# define CG_AVAILABLE_BUT_DEPRECATED(_mac, _macDep, _iphone, _iphoneDep)
#else
# include <Availability.h>
# define CG_AVAILABLE_STARTING __OSX_AVAILABLE_STARTING
# define CG_AVAILABLE_BUT_DEPRECATED __OSX_AVAILABLE_BUT_DEPRECATED
#endif

/* Definition of `__CG_STATIC_ASSERT'. */

#if !defined(__CG_STATIC_ASSERT)
# if defined(__cplusplus) && __CG_HAS_COMPILER_EXTENSION(cxx_static_assert)
#  define __CG_STATIC_ASSERT(constant_expression)			      \
     static_assert(constant_expression, #constant_expression)
# elif !defined(__cplusplus) && __CG_HAS_COMPILER_EXTENSION(c_static_assert)
#  define __CG_STATIC_ASSERT(constant_expression)			      \
     _Static_assert(constant_expression, #constant_expression)
# else
#  define __CG_STATIC_ASSERT(constant_expression)
# endif
#endif

/* Definition of `CG_INLINE'. */

#if !defined(CG_INLINE)
# if defined(__STDC_VERSION__) && __STDC_VERSION__ >= 199901L
#  define CG_INLINE static inline
# elif defined(__cplusplus)
#  define CG_INLINE static inline
# elif defined(__GNUC__)
#  define CG_INLINE static __inline__
# else
#  define CG_INLINE static    
# endif
#endif

/* Definition of `__CG_NO_INLINE'. */

#if !defined(__CG_NO_INLINE)
# if __CG_HAS_COMPILER_ATTRIBUTE(noinline)
#  define __CG_NO_INLINE static __attribute__((noinline))
# else
#  define __CG_NO_INLINE static
# endif
#endif

/* Definition of `__CG_FORMAT_PRINTF'. */

#if !defined(__CG_FORMAT_PRINTF)
# if __CG_HAS_COMPILER_ATTRIBUTE(format)
#  define __CG_FORMAT_PRINTF(FORMAT_STRING, STARTING_ARG)		      \
     __attribute__((format(printf, FORMAT_STRING, STARTING_ARG)))	      \
     __attribute__((nonnull(FORMAT_STRING)))
# else
#  define __CG_FORMAT_PRINTF(FORMAT_STRING, STARTING_ARG)
# endif
#endif

/* Definition of `__CG_FORMAT_VPRINTF'. */

#if !defined(__CG_FORMAT_VPRINTF)
# if __CG_HAS_COMPILER_ATTRIBUTE(format)
#  define __CG_FORMAT_VPRINTF(FORMAT_STRING)				      \
     __attribute__((format(printf, FORMAT_STRING, 0)))
# else
#  define __CG_FORMAT_VPRINTF(FORMAT_STRING)
# endif
#endif

/* Definition of `CGFLOAT_TYPE', `CGFLOAT_IS_DOUBLE', `CGFLOAT_MIN', and
   `CGFLOAT_MAX'. */

#if defined(__LP64__) && __LP64__
# define CGFLOAT_TYPE double
# define CGFLOAT_IS_DOUBLE 1
# define CGFLOAT_MIN DBL_MIN
# define CGFLOAT_MAX DBL_MAX
#else
# define CGFLOAT_TYPE float
# define CGFLOAT_IS_DOUBLE 0
# define CGFLOAT_MIN FLT_MIN
# define CGFLOAT_MAX FLT_MAX
#endif

/* Definition of the `CGFloat' type and `CGFLOAT_DEFINED'. */

typedef CGFLOAT_TYPE CGFloat;
#define CGFLOAT_DEFINED 1

/* Definition of `CG_OBSOLETE'. Deprecated; to be removed. */

#if !defined(CG_OBSOLETE)
# define CG_OBSOLETE __CG_DEPRECATED
#endif

/* Definition of `CG_PRIVATE_EXTERN'. Deprecated; to be removed. */

#if !defined(CG_PRIVATE_EXTERN) && !defined(CG_BUILDING_CG)
# define CG_PRIVATE_EXTERN CG_LOCAL
#endif

#endif /* CGBASE_H_ */