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hedley.h
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hedley.h
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/* Hedley - https://nemequ.github.io/hedley
* Created by Evan Nemerson <[email protected]>
*
* To the extent possible under law, the authors have waived all
* copyright and related or neighboring rights to Hedley. For
* details, see the Creative Commons Zero 1.0 Universal license at
* https://creativecommons.org/publicdomain/zero/1.0/
*/
#if !defined(HEDLEY_VERSION) || (HEDLEY_VERSION < 1)
#if defined(HEDLEY_VERSION)
# undef HEDLEY_VERSION
#endif
#define HEDLEY_VERSION 1
#if defined(HEDLEY_VERSION_ENCODE)
# undef HEDLEY_VERSION_ENCODE
#endif
#define HEDLEY_VERSION_ENCODE(major,minor,revision) (((major) * 1000000) + ((minor) * 1000) + (revision))
#if defined(HEDLEY_VERSION_DECODE_MAJOR)
# undef HEDLEY_VERSION_DECODE_MAJOR
#endif
#define HEDLEY_VERSION_DECODE_MAJOR(version) ((version) / 1000000)
#if defined(HEDLEY_VERSION_DECODE_MINOR)
# undef HEDLEY_VERSION_DECODE_MINOR
#endif
#define HEDLEY_VERSION_DECODE_MINOR(version) (((version) % 1000000) / 1000)
#if defined(HEDLEY_VERSION_DECODE_REVISION)
# undef HEDLEY_VERSION_DECODE_REVISION
#endif
#define HEDLEY_VERSION_DECODE_REVISION(version) ((version) % 1000)
#if defined(HEDLEY_GCC_VERSION_CHECK)
# undef HEDLEY_GCC_VERSION_CHECK
#endif
#if !defined(__GNUC__)
# define HEDLEY_GCC_VERSION_CHECK(major,minor,patch) 0
#else
# if defined(__GNUC_PATCHLEVEL__)
# define HEDLEY_GCC_VERSION_CHECK(major,minor,patch) (HEDLEY_VERSION_ENCODE(__GNUC__, __GNUC_MINOR__, __GNUC_PATCHLEVEL__) >= HEDLEY_VERSION_ENCODE(major,minor,patch))
# else
# define HEDLEY_GCC_VERSION_CHECK(major,minor,patch) (HEDLEY_VERSION_ENCODE(__GNUC__, __GNUC_MINOR__, 0) >= HEDLEY_VERSION_ENCODE(major,minor,patch))
# endif
#endif
#if defined(HEDLEY_GCC_NOT_CLANG_VERSION_CHECK)
# undef HEDLEY_GCC_NOT_CLANG_VERSION_CHECK
#endif
#if defined(__clang__)
# define HEDLEY_GCC_NOT_CLANG_VERSION_CHECK(major,minor,patch) 0
#else
# define HEDLEY_GCC_NOT_CLANG_VERSION_CHECK(major,minor,patch) HEDLEY_GCC_VERSION_CHECK(major,minor,patch)
#endif
#if defined(HEDLEY_MSVC_VERSION_CHECK)
# undef HEDLEY_GCC_VERSION_CHECK
#endif
#if !defined(_MSC_VER)
# define HEDLEY_MSVC_VERSION_CHECK(major,minor,patch) 0
#elif defined(_MSC_VER) && (_MSC_VER >= 1400)
# define HEDLEY_MSVC_VERSION_CHECK(major,minor,patch) (_MSC_FULL_VER >= ((major * 1000000) + (minor * 10000) + (patch)))
#elif defined(_MSC_VER) && (_MSC_VER >= 1200)
# define HEDLEY_MSVC_VERSION_CHECK(major,minor,patch) (_MSC_FULL_VER >= ((major * 100000) + (minor * 1000) + (patch)))
#else
# define HEDLEY_MSVC_VERSION_CHECK(major,minor,patch) (_MSC_VER >= ((major * 100) + (minor)))
#endif
#if defined(HEDLEY_INTEL_VERSION_CHECK)
# undef HEDLEY_INTEL_VERSION_CHECK
#endif
#if defined(__INTEL_COMPILER)
# define HEDLEY_INTEL_VERSION_CHECK(major,minor,patch) (__INTEL_COMPILER >= (((major) * 100) + (minor)))
#else
# define HEDLEY_INTEL_VERSION_CHECK(major,minor,patch) 0
#endif
#if defined(HEDLEY_CLANG_HAS_ATTRIBUTE)
# undef HEDLEY_CLANG_HAS_ATTRIBUTE
#endif
#if defined(HEDLEY_CLANG_HAS_BUILTIN)
# undef HEDLEY_CLANG_HAS_BUILTIN
#endif
#if defined(HEDLEY_CLANG_HAS_FEATURE)
# undef HEDLEY_CLANG_HAS_FEATURE
#endif
#if defined(HEDLEY_CLANG_HAS_EXTENSION)
# undef HEDLEY_CLANG_HAS_EXTENSION
#endif
#if defined(HEDLEY_CLANG_HAS_DECLSPEC_ATTRIBUTE)
# undef HEDLEY_CLANG_HAS_DECLSPEC_ATTRIBUTE
#endif
#if defined(HEDLEY_CLANG_HAS_WARNING)
# undef HEDLEY_CLANG_HAS_WARNING
#endif
#if defined(__clang__) && defined(__has_attribute)
# define HEDLEY_CLANG_HAS_ATTRIBUTE(attribute) __has_attribute(attribute)
#else
# define HEDLEY_CLANG_HAS_ATTRIBUTE(attribute) 0
#endif
#if defined(__clang__) && defined(__has_builtin)
# define HEDLEY_CLANG_HAS_BUILTIN(builtin) __has_builtin(builtin)
#else
# define HEDLEY_CLANG_HAS_BUILTIN(builtin) 0
#endif
#if defined(__clang__) && defined(__has_feature)
# define HEDLEY_CLANG_HAS_FEATURE(feature) __has_feature(feature)
#else
# define HEDLEY_CLANG_HAS_FEATURE(feature) 0
#endif
#if defined(__clang__) && defined(__has_extension)
# define HEDLEY_CLANG_HAS_EXTENSION(extension) __has_extension(extension)
#else
# define HEDLEY_CLANG_HAS_EXTENSION(extension) 0
#endif
#if defined(__clang__) && defined(__has_declspec_attribute)
# define HEDLEY_CLANG_HAS_DECLSPEC_ATTRIBUTE(attribute) __has_declspec_attribute(attribute)
#else
# define HEDLEY_CLANG_HAS_DECLSPEC_ATTRIBUTE(attribute) 0
#endif
#if defined(__clang__) && defined(__has_warning)
# define HEDLEY_CLANG_HAS_WARNING(warning) __has_warning(warning)
#else
# define HEDLEY_CLANG_HAS_WARNING(warning) 0
#endif
#if defined(HEDLEY_GCC_HAS_ATTRIBUTE)
# undef HEDLEY_GCC_HAS_ATTRIBUTE
#endif
#if defined(HEDLEY_GCC_HAS_BUILTIN)
# undef HEDLEY_GCC_HAS_BUILTIN
#endif
#if defined(HEDLEY_GCC_HAS_FEATURE)
# undef HEDLEY_GCC_HAS_FEATURE
#endif
#if defined(HEDLEY_GCC_HAS_DECLSPEC_ATTRIBUTE)
# undef HEDLEY_GCC_HAS_DECLSPEC_ATTRIBUTE
#endif
#if defined(HEDLEY_GCC_HAS_WARNING)
# undef HEDLEY_GCC_HAS_WARNING
#endif
#define HEDLEY_GCC_HAS_ATTRIBUTE(attribute,major,minor,patch) (HEDLEY_CLANG_HAS_ATTRIBUTE(attribute) || HEDLEY_GCC_NOT_CLANG_VERSION_CHECK(major,minor,patch))
#define HEDLEY_GCC_HAS_BUILTIN(builtin,major,minor,patch) (HEDLEY_CLANG_HAS_BUILTIN(builtin) || HEDLEY_GCC_NOT_CLANG_VERSION_CHECK(major,minor,patch))
#define HEDLEY_GCC_HAS_FEATURE(feature,major,minor,patch) (HEDLEY_CLANG_HAS_FEATURE(feature) || HEDLEY_GCC_NOT_CLANG_VERSION_CHECK(major,minor,patch))
#define HEDLEY_GCC_HAS_DECLSPEC_ATTRIBUTE(attribute,major,minor,patch) (HEDLEY_CLANG_HAS_DECLSPEC_ATTRIBUTE(attribute) || HEDLEY_GCC_NOT_CLANG_VERSION_CHECK(major,minor,patch))
#define HEDLEY_GCC_HAS_WARNING(warning,major,minor,patch) (HEDLEY_CLANG_HAS_WARNING(warning) || HEDLEY_GCC_NOT_CLANG_VERSION_CHECK(major,minor,patch))
#if defined(HEDLEY_DEPRECATED)
# undef HEDLEY_DEPRECATED
#endif
#if defined(HEDLEY_DEPRECATED_FOR)
# undef HEDLEY_DEPRECATED_FOR
#endif
#if HEDLEY_CLANG_HAS_EXTENSION(attribute_deprecated_with_message) || HEDLEY_GCC_NOT_CLANG_VERSION_CHECK(4,5,0)
# define HEDLEY_DEPRECATED(since) __attribute__((__deprecated__("Since " #since)))
# define HEDLEY_DEPRECATED_FOR(since, replacement) __attribute__((__deprecated__("Since " #since "; use " #replacement)))
#elif HEDLEY_GCC_HAS_ATTRIBUTE(deprcated,4,0,0)
# define HEDLEY_DEPRECATED(since) __attribute__((__deprecated__))
# define HEDLEY_DEPRECATED_FOR(since, replacement) __attribute__((__deprecated__))
#elif HEDLEY_MSVC_VERSION_CHECK(14,0,0)
# define HEDLEY_DEPRECATED(since) __declspec(deprecated("Since " # since))
# define HEDLEY_DEPRECATED_FOR(since, replacement) __declspec(deprecated("Since " #since "; use " #replacement))
#elif HEDLEY_MSVC_VERSION_CHECK(13,10,0)
# define HEDLEY_DEPRECATED(since) _declspec(deprecated)
# define HEDLEY_DEPRECATED_FOR(since, replacement) __declspec(deprecated)
#else
# define HEDLEY_DEPRECATED(since)
# define HEDLEY_DEPRECATED_FOR(since, replacement)
#endif
#if defined(HEDLEY_UNAVAILABLE)
# undef HEDLEY_UNAVAILABLE
#endif
#if HEDLEY_GCC_HAS_ATTRIBUTE(warning,4,3,0)
# define HEDLEY_UNAVAILABLE(available_since) __attribute__((warning("Not available until " #available_since)))
#else
# define HEDLEY_UNAVAILABLE(available_since)
#endif
#if defined(HEDLEY_WARN_UNUSED_RESULT)
# undef HEDLEY_WARN_UNUSED_RESULT
#endif
#if HEDLEY_GCC_HAS_ATTRIBUTE(warn_unused_result,3,4,0)
# define HEDLEY_WARN_UNUSED_RESULT __attribute__((__warn_unused_result__))
#elif HEDLEY_MSVC_VERSION_CHECK(17,0,0)
# define HEDLEY_WARN_UNUSED_RESULT _Check_return_
#else
# define HEDLEY_WARN_UNUSED_RESULT
#endif
#if defined(HEDLEY_SENTINEL)
# undef HEDLEY_SENTINEL
#endif
#if HEDLEY_GCC_HAS_ATTRIBUTE(sentinel,4,0,0)
# define HEDLEY_SENTINEL(position) __attribute__((__sentinel__(position)))
#else
# define HEDLEY_SENTINEL(position)
#endif
#if defined(HEDLEY_NO_RETURN)
# undef HEDLEY_NO_RETURN
#endif
#if defined(__STDC_VERSION__) && __STDC_VERSION__ >= 201112L
# define HEDLEY_NO_RETURN _Noreturn
#elif HEDLEY_GCC_HAS_ATTRIBUTE(noreturn,3,2,0)
# define HEDLEY_NO_RETURN __attribute__((__noreturn__))
#elif HEDLEY_MSVC_VERSION_CHECK(13,10,0)
# define HEDLEY_NO_RETURN __declspec(noreturn)
#else
# define HEDLEY_NO_RETURN
#endif
#if defined(HEDLEY_UNREACHABLE)
# undef HEDLEY_UNREACHABLE
#endif
#if defined(assert)
# if HEDLEY_GCC_HAS_BUILTIN(__builtin_unreachable,4,5,0)
# define HEDLEY_UNREACHABLE() do { assert(0); __builtin_unreachable(); } while(0)
# elif HEDLEY_MSVC_VERSION_CHECK(13,10,0)
# define HEDLEY_UNREACHABLE() do { assert(0); __assume(0); } while(0)
# elif defined(EXIT_FAILURE)
# define HEDLEY_UNREACHABLE() do { assert(0); abort(); } while(0)
# else
# define HEDLEY_UNREACHABLE() assert(0)
# endif
#else
# if HEDLEY_GCC_HAS_BUILTIN(__builtin_unreachable,4,5,0)
# define HEDLEY_UNREACHABLE() __builtin_unreachable();
# elif HEDLEY_MSVC_VERSION_CHECK(13,10,0)
# define HEDLEY_UNREACHABLE() __assume(0);
# elif defined(EXIT_FAILURE)
# define HEDLEY_UNREACHABLE() abort();
# else
# define HEDLEY_UNREACHABLE() assert(0)
# endif
#endif
#if defined(HEDLEY_NON_NULL)
# undef HEDLEY_NON_NULL
#endif
#if HEDLEY_GCC_HAS_ATTRIBUTE(nonnull,3,3,0)
# define HEDLEY_NON_NULL(...) __attribute__((__nonnull__(__VA_ARGS__)))
#else
# define HEDLEY_NON_NULL(...)
#endif
#if defined(HEDLEY_PRINTF_FORMAT)
# undef HEDLEY_PRINTF_FORMAT
#endif
#if HEDLEY_GCC_HAS_ATTRIBUTE(format,3,1,0)
# if HEDLEY_GCC_VERSION_CHECK(4,4,0) && defined(__MINGW32__) && !defined(__USE_MINGW_ANSI_STDIO)
# define HEDLEY_PRINTF_FORMAT(string_idx,first_to_check) __attribute__((__format__(ms_printf, string, first_to_check)))
# elif HEDLEY_GCC_VERSION_CHECK(4,4,0)
# define HEDLEY_PRINTF_FORMAT(string_idx,first_to_check) __attribute__((__format__(gnu_printf, string, first_to_check)))
# elif defined(__MINGW32__)
# define HEDLEY_PRINTF_FORMAT(string_idx,first_to_check)
# else
# define HEDLEY_PRINTF_FORMAT(string_idx,first_to_check) __attribute__((__format__(printf, string, first_to_check)))
# endif
#else
# define HEDLEY_PRINTF_FORMAT(string_idx,first_to_check)
#endif
#if defined(HEDLEY_LIKELY)
# undef HEDLEY_LIKELY
#endif
#if defined(HEDLEY_UNLIKELY)
# undef HEDLEY_UNLIKELY
#endif
#if HEDLEY_GCC_HAS_BUILTIN(__builtin_expect,3,0,0)
# define HEDLEY_LIKELY(expr) __builtin_expect(((expr) != 0), 1)
# define HEDLEY_UNLIKELY(expr) __builtin_expect(((expr) != 0), 0)
#else
# define HEDLEY_LIKELY(expr) ((expr) != 0)
# define HEDLEY_UNLIKELY(expr) ((expr) != 0)
#endif
#if defined(HEDLEY_MALLOC)
# undef HEDLEY_MALLOC
#endif
#if HEDLEY_GCC_HAS_ATTRIBUTE(malloc, 3, 1, 0)
# define HEDLEY_MALLOC __attribute__((__malloc__))
#elif HEDLEY_MSVC_VERSION_CHECK(14, 0, 0)
# define HEDLEY_MALLOC __declspec(restrict)
#else
# define HEDLEY_MALLOC
#endif
#if defined(HEDLEY_PURE)
# undef HEDLEY_PURE
#endif
#if HEDLEY_GCC_HAS_ATTRIBUTE(pure, 2, 96, 0)
# define HEDLEY_PURE __attribute__((__pure__))
#elif HEDLEY_MSVC_VERSION_CHECK(14, 0, 0)
# define HEDLEY_PURE __declspec(noalias)
#else
# define HEDLEY_PURE
#endif
#if defined(HEDLEY_CONST)
# undef HEDLEY_CONST
#endif
#if HEDLEY_GCC_HAS_ATTRIBUTE(const, 2, 5, 0)
# define HEDLEY_CONST __attribute__((__const__))
#else
# define HEDLEY_CONST HEDLEY_PURE
#endif
#if defined(HEDLEY_RESTRICT)
# undef HEDLEY_RESTRICT
#endif
#if defined(__STDC_VERSION__) && __STDC_VERSION__ >= 199901L
# define HEDLEY_RESTRICT restrict
#elif HEDLEY_GCC_VERSION_CHECK(3,1,0) || HEDLEY_MSVC_VERSION_CHECK(14,0,0)
# define HEDLEY_RESTRICT __restrict
#endif
#if defined(HEDLEY_INLINE)
# undef HEDLEY_INLINE
#endif
#if defined(HEDLEY_ALWAYS_INLINE)
# undef HEDLEY_ALWAYS_INLINE
#endif
#if defined(HEDLEY_NEVER_INLINE)
# undef HEDLEY_NEVER_INLINE
#endif
/* HEDLEY_INLINE */
#if defined(__STDC_VERSION__) && __STDC_VERSION__ >= 199901L
# define HEDLEY_INLINE inline
#elif defined(__GNUC_STDC_INLINE__)
# define HEDLEY_INLINE __inline__
#elif HEDLEY_MSVC_VERSION_CHECK(12,0,0)
# define HEDLEY_INLINE __inline
#else
# define HEDLEY_INLINE
#endif
/* HEDLEY_ALWAYS_INLINE */
#if HEDLEY_GCC_HAS_ATTRIBUTE(always_inline,4,0,0)
# define HEDLEY_ALWAYS_INLINE __attribute__((__always_inline__))
#elif HEDLEY_MSVC_VERSION_CHECK(12,0,0)
# define HEDLEY_ALWAYS_INLINE __forceinline
#else
# define HEDLEY_ALWAYS_INLINE HEDLEY_INLINE
#endif
/* HEDLEY_NEVER_INLINE */
#if HEDLEY_GCC_HAS_ATTRIBUTE(never_inline,4,0,0)
# define HEDLEY_NEVER_INLINE __attribute__((__noinline__))
#elif HEDLEY_MSVC_VERSION_CHECK(13,10,0)
# define HEDLEY_NEVER_INLINE __declspec(noinline)
#else
# define HEDLEY_NEVER_INLINE HEDLEY_INLINE
#endif
#if defined(HEDLEY_PRIVATE)
# undef HEDLEY_PRIVATE
#endif
#if defined(HEDLEY_PUBLIC)
# undef HEDLEY_PUBLIC
#endif
#if defined(HEDLEY_IMPORT)
# undef HEDLEY_IMPORT
#endif
#if defined(_WIN32) || defined(__CYGWIN__)
# if HEDLEY_GCC_VERSION_CHECK(4,2,0)
# define HEDLEY_PRIVATE __attribute__((visibility ("hidden")))
# else
# define HEDLEY_PRIVATE
# endif
# define HEDLEY_PUBLIC __declspec(dllexport)
# define HEDLEY_IMPORT __declspec(dllimport)
#else
# if HEDLEY_GCC_VERSION_CHECK(4,2,0)
# define HEDLEY_PRIVATE __attribute__((visibility ("hidden")))
# define HEDLEY_PUBLIC __attribute__((visibility ("default")))
# else
# define HEDLEY_PRIVATE
# define HEDLEY_PUBLIC
# endif
# define HEDLEY_IMPORT extern
#endif
#if defined(HEDLEY_NO_THROW)
# undef HEDLEY_NO_THROW
#endif
#if HEDLEY_GCC_HAS_ATTRIBUTE(nothrow,3,3,0)
# define HEDLEY_NO_THROW __attribute__((__nothrow__))
#elif HEDLEY_MSVC_VERSION_CHECK(13,1,0)
# define HEDLEY_NO_THROW __declspec(nothrow)
#else
# define HEDLEY_NO_THROW
#endif
#if defined(HEDLEY_ARRAY_PARAM)
# undef HEDLEY_ARRAY_PARAM
#endif
#if defined(__STDC_VERSION__) && (__STDC_VERSION__ >= 199901L) && !defined(__cplusplus)
# define HEDLEY_ARRAY_PARAM(name) name
#else
# define HEDLEY_ARRAY_PARAM(name)
#endif
#if defined(HEDLEY_BEGIN_C_DECLS)
# undef HEDLEY_BEGIN_C_DECLS
#endif
#if defined(HEDLEY_END_C_DECLS)
# undef HEDLEY_END_C_DECLS
#endif
#if defined(HEDLEY_C_DECL)
# undef HEDLEY_C_DECL
#endif
#if defined(__cplusplus)
# define HEDLEY_BEGIN_C_DECLS extern "C" {
# define HEDLEY_END_C_DECLS }
# define HEDLEY_C_DECL extern "C"
#else
# define HEDLEY_BEGIN_C_DECLS
# define HEDLEY_END_C_DECLS
# define HEDLEY_C_DECL
#endif
#if defined(HEDLEY_STATIC_ASSERT)
# undef HEDLEY_STATIC_ASSERT
#endif
#if defined(__STDC_VERSION__) && __STDC_VERSION__ >= 201112L
# define HEDLEY_STATIC_ASSERT(expr, message) _Static_assert(expr, message)
#elif HEDLEY_GCC_HAS_FEATURE(c_static_assert,4,6,0)
# define HEDLEY_STATIC_ASSERT(expr, message) _Static_assert(expr, message)
#elif HEDLEY_MSVC_VERSION_CHECK(16,0,0)
# define HEDLEY_STATIC_ASSERT(expr, message) static_assert(expr, message)
#else
# define HEDLEY_STATIC_ASSERT(expr, message)
#endif
#if defined(HEDLEY_DIAGNOSTIC_PUSH)
# undef HEDLEY_DIAGNOSTIC_PUSH
#endif
#if defined(HEDLEY_DIAGNOSTIC_POP)
# undef HEDLEY_DIAGNOSTIC_POP
#endif
#if defined(__clang__)
# define HEDLEY_DIAGNOSTIC_PUSH _Pragma("clang diagnostic push")
# define HEDLEY_DIAGNOSTIC_POP _Pragma("clang diagnostic pop")
#elif HEDLEY_INTEL_VERSION_CHECK(16,0,0)
# define HEDLEY_DIAGNOSTIC_PUSH _Pragma("warning(push)")
# define HEDLEY_DIAGNOSTIC_POP _Pragma("warning(pop)")
#elif HEDLEY_GCC_NOT_CLANG_VERSION_CHECK(4,6,0)
# define HEDLEY_DIAGNOSTIC_PUSH _Pragma("GCC diagnostic push")
# define HEDLEY_DIAGNOSTIC_POP _Pragma("GCC diagnostic pop")
#elif HEDLEY_MSVC_VERSION_CHECK(15,0,0)
# define HEDLEY_DIAGNOSTIC_PUSH __pragma(warning(push))
# define HEDLEY_DIAGNOSTIC_POP __pragma(warning(pop))
#else
# define HEDLEY_DIAGNOSTIC_PUSH
# define HEDLEY_DIAGNOSTIC_POP
#endif
#if defined(HEDLEY_DIAGNOSTIC_DISABLE_DEPRECATED)
# undef HEDLEY_DIAGNOSTIC_DISABLE_DEPRECATED
#endif
#if HEDLEY_CLANG_HAS_WARNING("-Wdeprecated")
# define HEDELY_DIAGNOSTIC_DISABLE_DEPRECATED _Pragma("clang diagnostic ignored \"-Wdeprecated\"")
#elif HEDLEY_INTEL_VERSION_CHECK(16,0,0)
# define HEDLEY_DIAGNOSTIC_DISABLE_DEPRECATED _Pragma("warning(disable:1478)")
#elif HEDLEY_GCC_NOT_CLANG_VERSION_CHECK(4,3,0)
# define HEDLEY_DIAGNOSTIC_DISABLE_DEPRECATED _Pragma("GCC diagnostic ignored \"-Wdeprecated\"")
#elif HEDLEY_MSVC_VERSION_CHECK(15,0,0)
# define HEDLEY_DIAGNOSTIC_DISABLE_DEPRECATED __pragma(warning(disable:4996))
#else
# define HEDLEY_DIAGNOSTIC_DISABLE_DEPRECATED
#endif
#endif /* !defined(HEDLEY_VERSION) || (HEDLEY_VERSION < X) */