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/*
* Copyright © 2007,2008,2009 Red Hat, Inc.
* Copyright © 2011,2012 Google, Inc.
*
* This is part of HarfBuzz, a text shaping library.
*
* Permission is hereby granted, without written agreement and without
* license or royalty fees, to use, copy, modify, and distribute this
* software and its documentation for any purpose, provided that the
* above copyright notice and the following two paragraphs appear in
* all copies of this software.
*
* IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE TO ANY PARTY FOR
* DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES
* ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN
* IF THE COPYRIGHT HOLDER HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH
* DAMAGE.
*
* THE COPYRIGHT HOLDER SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING,
* BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
* FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS
* ON AN "AS IS" BASIS, AND THE COPYRIGHT HOLDER HAS NO OBLIGATION TO
* PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
*
* Red Hat Author(s): Behdad Esfahbod
* Google Author(s): Behdad Esfahbod
*/
#ifndef HB_HH
#define HB_HH
#ifndef HB_NO_PRAGMA_GCC_DIAGNOSTIC
#ifdef _MSC_VER
#pragma warning( disable: 4068 ) /* Unknown pragma */
#endif
#if defined(__GNUC__) || defined(__clang__)
/* Rules:
*
* - All pragmas are declared GCC even if they are clang ones. Otherwise GCC
* nags, even though we instruct it to ignore -Wunknown-pragmas. ¯\_(ツ)_/¯
*
* - Within each category, keep sorted.
*
* - Warnings whose scope can be expanded in future compiler versions shall
* be declared as "warning". Otherwise, either ignored or error.
*/
/* Setup. Don't sort order within this category. */
#ifndef HB_NO_PRAGMA_GCC_DIAGNOSTIC_WARNING
#pragma GCC diagnostic warning "-Wall"
#pragma GCC diagnostic warning "-Wextra"
#endif
#ifndef HB_NO_PRAGMA_GCC_DIAGNOSTIC_IGNORED
#pragma GCC diagnostic ignored "-Wpragmas"
#pragma GCC diagnostic ignored "-Wunknown-pragmas"
#pragma GCC diagnostic ignored "-Wunknown-warning-option"
#endif
#ifndef HB_NO_PRAGMA_GCC_DIAGNOSTIC_WARNING
//#pragma GCC diagnostic warning "-Weverything"
#endif
/* Error. Should never happen. */
#ifndef HB_NO_PRAGMA_GCC_DIAGNOSTIC_ERROR
#pragma GCC diagnostic error "-Wbitwise-instead-of-logical"
#pragma GCC diagnostic error "-Wcast-align"
#pragma GCC diagnostic error "-Wcast-function-type"
#pragma GCC diagnostic error "-Wcast-function-type-strict"
#pragma GCC diagnostic error "-Wconstant-conversion"
#pragma GCC diagnostic error "-Wcomma"
#pragma GCC diagnostic error "-Wdelete-non-virtual-dtor"
#pragma GCC diagnostic error "-Wembedded-directive"
#pragma GCC diagnostic error "-Wextra-semi-stmt"
#pragma GCC diagnostic error "-Wformat-security"
#pragma GCC diagnostic error "-Wimplicit-function-declaration"
#pragma GCC diagnostic error "-Winit-self"
#pragma GCC diagnostic error "-Winjected-class-name"
#pragma GCC diagnostic error "-Wmissing-braces"
#pragma GCC diagnostic error "-Wmissing-declarations"
#pragma GCC diagnostic error "-Wmissing-prototypes"
#pragma GCC diagnostic error "-Wnarrowing"
#pragma GCC diagnostic error "-Wnested-externs"
#pragma GCC diagnostic error "-Wold-style-definition"
#pragma GCC diagnostic error "-Wpointer-arith"
#pragma GCC diagnostic error "-Wredundant-decls"
#pragma GCC diagnostic error "-Wreorder"
#pragma GCC diagnostic error "-Wsign-compare"
#pragma GCC diagnostic error "-Wstrict-flex-arrays"
#pragma GCC diagnostic error "-Wstrict-prototypes"
#pragma GCC diagnostic error "-Wstring-conversion"
#pragma GCC diagnostic error "-Wswitch-enum"
#pragma GCC diagnostic error "-Wtautological-overlap-compare"
#pragma GCC diagnostic error "-Wunneeded-internal-declaration"
#pragma GCC diagnostic error "-Wunused"
#pragma GCC diagnostic error "-Wunused-local-typedefs"
#pragma GCC diagnostic error "-Wunused-value"
#pragma GCC diagnostic error "-Wunused-variable"
#pragma GCC diagnostic error "-Wvla"
#pragma GCC diagnostic error "-Wwrite-strings"
#endif
/* Warning. To be investigated if happens. */
#ifndef HB_NO_PRAGMA_GCC_DIAGNOSTIC_WARNING
#pragma GCC diagnostic warning "-Wbuiltin-macro-redefined"
#pragma GCC diagnostic warning "-Wdeprecated"
#pragma GCC diagnostic warning "-Wdeprecated-declarations"
#pragma GCC diagnostic warning "-Wdisabled-optimization"
#pragma GCC diagnostic warning "-Wdouble-promotion"
#pragma GCC diagnostic warning "-Wformat=2"
#pragma GCC diagnostic warning "-Wformat-signedness"
#pragma GCC diagnostic warning "-Wignored-pragma-optimize"
#pragma GCC diagnostic warning "-Wlogical-op"
#pragma GCC diagnostic warning "-Wmaybe-uninitialized"
#pragma GCC diagnostic warning "-Wmissing-format-attribute"
#pragma GCC diagnostic warning "-Wundef"
#pragma GCC diagnostic warning "-Wunsafe-loop-optimizations"
#pragma GCC diagnostic warning "-Wunused-but-set-variable"
#endif
/* Ignored currently, but should be fixed at some point. */
#ifndef HB_NO_PRAGMA_GCC_DIAGNOSTIC_IGNORED
#pragma GCC diagnostic ignored "-Wconversion" // TODO fix
#pragma GCC diagnostic ignored "-Wshadow" // TODO fix
#pragma GCC diagnostic ignored "-Wunused-parameter" // TODO fix
#if defined(__GNUC__) && !defined(__clang__)
#pragma GCC diagnostic ignored "-Wunused-result" // TODO fix
#endif
#endif
/* Ignored intentionally. */
#ifndef HB_NO_PRAGMA_GCC_DIAGNOSTIC_IGNORED
#pragma GCC diagnostic ignored "-Wclass-memaccess"
#pragma GCC diagnostic ignored "-Wcast-function-type-strict" // https://github.com/harfbuzz/harfbuzz/pull/3859#issuecomment-1295409126
#pragma GCC diagnostic ignored "-Wdangling-reference" // https://github.com/harfbuzz/harfbuzz/issues/4043
#pragma GCC diagnostic ignored "-Wformat-nonliteral"
#pragma GCC diagnostic ignored "-Wformat-zero-length"
#pragma GCC diagnostic ignored "-Wmissing-field-initializers"
#pragma GCC diagnostic ignored "-Wpacked" // Erratic impl in clang
#pragma GCC diagnostic ignored "-Wrange-loop-analysis" // https://github.com/harfbuzz/harfbuzz/issues/2834
#pragma GCC diagnostic ignored "-Wstrict-aliasing"
#pragma GCC diagnostic ignored "-Wtype-limits"
#pragma GCC diagnostic ignored "-Wc++11-compat" // only gcc raises it
#endif
#endif
#endif
#include "hb-config.hh"
#include "hb-limits.hh"
/*
* Following added based on what AC_USE_SYSTEM_EXTENSIONS adds to
* config.h.in. Copied here for the convenience of those embedding
* HarfBuzz and not using our build system.
*/
/* Enable extensions on AIX 3, Interix. */
#ifndef _ALL_SOURCE
# define _ALL_SOURCE 1
#endif
/* Enable GNU extensions on systems that have them. */
#ifndef _GNU_SOURCE
# define _GNU_SOURCE 1
#endif
/* Enable threading extensions on Solaris. */
#ifndef _POSIX_PTHREAD_SEMANTICS
# define _POSIX_PTHREAD_SEMANTICS 1
#endif
/* Enable extensions on HP NonStop. */
#ifndef _TANDEM_SOURCE
# define _TANDEM_SOURCE 1
#endif
/* Enable general extensions on Solaris. */
#ifndef __EXTENSIONS__
# define __EXTENSIONS__ 1
#endif
#if defined (_MSC_VER) && defined (HB_DLL_EXPORT)
#define HB_EXTERN __declspec (dllexport) extern
#endif
#ifndef __STDC_FORMAT_MACROS
#define __STDC_FORMAT_MACROS 1
#endif
#include "hb.h"
#define HB_H_IN
#include "hb-ot.h"
#define HB_OT_H_IN
#include "hb-aat.h"
#define HB_AAT_H_IN
#include <cassert>
#include <cfloat>
#include <climits>
#if defined(_MSC_VER) && !defined(_USE_MATH_DEFINES)
# define _USE_MATH_DEFINES
#endif
#include <cmath>
#include <cstdarg>
#include <cstddef>
#include <cstdio>
#include <cstdlib>
#include <cstring>
#if (defined(_MSC_VER) && _MSC_VER >= 1500) || defined(__MINGW32__)
#ifdef __MINGW32_VERSION
#ifndef WIN32_LEAN_AND_MEAN
#define WIN32_LEAN_AND_MEAN 1
#endif
#else
#include <intrin.h>
#endif
#endif
#ifdef _WIN32
#include <windows.h>
#include <winapifamily.h>
#endif
#ifndef PRId32
# define PRId32 "d"
# define PRIu32 "u"
# define PRIx32 "x"
#endif
#define HB_PASTE1(a,b) a##b
#define HB_PASTE(a,b) HB_PASTE1(a,b)
/* Compile-time custom allocator support. */
#if !defined(HB_CUSTOM_MALLOC) \
&& defined(hb_malloc_impl) \
&& defined(hb_calloc_impl) \
&& defined(hb_realloc_impl) \
&& defined(hb_free_impl)
#define HB_CUSTOM_MALLOC
#endif
#ifdef HB_CUSTOM_MALLOC
extern "C" void* hb_malloc_impl(size_t size);
extern "C" void* hb_calloc_impl(size_t nmemb, size_t size);
extern "C" void* hb_realloc_impl(void *ptr, size_t size);
extern "C" void hb_free_impl(void *ptr);
#define hb_malloc hb_malloc_impl
#define hb_calloc hb_calloc_impl
#define hb_realloc hb_realloc_impl
#define hb_free hb_free_impl
#else
#define hb_malloc malloc
#define hb_calloc calloc
#define hb_realloc realloc
#define hb_free free
#endif
/*
* Compiler attributes
*/
// gcc 10 has __has_builtin but not earlier versions. Sanction any gcc >= 5
// clang defines it so no need.
#ifdef __has_builtin
#define hb_has_builtin __has_builtin
#else
#define hb_has_builtin(x) ((defined(__GNUC__) && __GNUC__ >= 5))
#endif
#if defined(__OPTIMIZE__) && hb_has_builtin(__builtin_expect)
#define likely(expr) __builtin_expect (bool(expr), 1)
#define unlikely(expr) __builtin_expect (bool(expr), 0)
#else
#define likely(expr) (expr)
#define unlikely(expr) (expr)
#endif
#if !defined(__GNUC__) && !defined(__clang__)
#undef __attribute__
#define __attribute__(x)
#endif
#if defined(__GNUC__) && (__GNUC__ >= 3)
#define HB_PRINTF_FUNC(format_idx, arg_idx) __attribute__((__format__ (__printf__, format_idx, arg_idx)))
#else
#define HB_PRINTF_FUNC(format_idx, arg_idx)
#endif
#if defined(__GNUC__) && (__GNUC__ >= 4) || (__clang__)
#define HB_UNUSED __attribute__((unused))
#define HB_UNUSED __pragma(warning(suppress: 4100 4101))
#else
#define HB_UNUSED
#endif
#ifndef HB_INTERNAL
# if !defined(HB_NO_VISIBILITY) && !defined(__MINGW32__) && !defined(__CYGWIN__) && !defined(_MSC_VER) && !defined(__SUNPRO_CC)
# define HB_INTERNAL __attribute__((__visibility__("hidden")))
# elif defined(__MINGW32__)
/* We use -export-symbols on mingw32, since it does not support visibility attributes. */
# define HB_INTERNAL
# elif defined (_MSC_VER) && defined (HB_DLL_EXPORT)
/* We do not try to export internal symbols on Visual Studio */
# define HB_INTERNAL
#else
# define HB_INTERNAL
# define HB_NO_VISIBILITY 1
# endif
#endif
#if defined(__clang__) && __clang_major__ < 10
#define static_const static
#else
#define static_const static const
#endif
#if defined(__GNUC__) && (__GNUC__ >= 3)
#define HB_FUNC __PRETTY_FUNCTION__
#elif defined(_MSC_VER)
#define HB_FUNC __FUNCSIG__
#else
#define HB_FUNC __func__
#endif
#if defined(__SUNPRO_CC) && (__SUNPRO_CC < 0x5140)
#define __restrict
#endif
#ifndef HB_ALWAYS_INLINE
#if defined(_MSC_VER)
#define HB_ALWAYS_INLINE __forceinline
#else
#define HB_ALWAYS_INLINE __attribute__((always_inline)) inline
#endif
#endif
/*
* HB_FALLTHROUGH is an annotation to suppress compiler warnings about switch
* cases that fall through without a break or return statement. HB_FALLTHROUGH
* is only needed on cases that have code:
*
* switch (foo) {
* case 1: // These cases have no code. No fallthrough annotations are needed.
* case 2:
* case 3:
* foo = 4; // This case has code, so a fallthrough annotation is needed:
* HB_FALLTHROUGH;
* default:
* return foo;
* }
*/
#if defined(__clang__) && __cplusplus >= 201103L
/* clang's fallthrough annotations are only available starting in C++11. */
# define HB_FALLTHROUGH [[clang::fallthrough]]
#elif defined(__GNUC__) && (__GNUC__ >= 7)
/* GNU fallthrough attribute is available from GCC7 */
# define HB_FALLTHROUGH __attribute__((fallthrough))
#elif defined(_MSC_VER)
/*
* MSVC's __fallthrough annotations are checked by /analyze (Code Analysis):
*/
# include <sal.h>
# define HB_FALLTHROUGH __fallthrough
#else
# define HB_FALLTHROUGH /* FALLTHROUGH */
#endif
/* A tag to enforce use of return value for a function */
#if __cplusplus >= 201703L
# define HB_NODISCARD [[nodiscard]]
#elif defined(__GNUC__) || defined(__clang__)
# define HB_NODISCARD __attribute__((warn_unused_result))
#elif defined(_MSC_VER)
# define HB_NODISCARD _Check_return_
#else
# define HB_NODISCARD
#endif
#if defined(__clang__) && !(defined(_AIX) && (defined(__IBMCPP__) || defined(__ibmxl__)))
/* Disable certain sanitizer errors. */
#define HB_NO_SANITIZE_SIGNED_INTEGER_OVERFLOW __attribute__((no_sanitize("signed-integer-overflow")))
#else
#define HB_NO_SANITIZE_SIGNED_INTEGER_OVERFLOW
#endif
#ifdef _WIN32
/* We need Windows Vista for both Uniscribe backend and for
* MemoryBarrier. We don't support compiling on Windows XP,
* though we run on it fine. */
# if defined(_WIN32_WINNT) && _WIN32_WINNT < 0x0600
# undef _WIN32_WINNT
# endif
# ifndef _WIN32_WINNT
# if WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)
# define _WIN32_WINNT 0x0600
# endif
# endif
# ifndef WIN32_LEAN_AND_MEAN
# define WIN32_LEAN_AND_MEAN 1
# endif
# ifndef STRICT
# define STRICT 1
# endif
# if defined(_WIN32_WCE)
/* Some things not defined on Windows CE. */
# define vsnprintf _vsnprintf
# ifndef HB_NO_GETENV
# define HB_NO_GETENV
# endif
# if _WIN32_WCE < 0x800
# define HB_NO_SETLOCALE
# define HB_NO_ERRNO
# endif
# elif !WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)
# ifndef HB_NO_GETENV
# define HB_NO_GETENV
# endif
# endif
# if defined(_MSC_VER) && _MSC_VER < 1900
# define snprintf _snprintf
# endif
#endif
#ifdef HB_NO_GETENV
#define getenv(Name) nullptr
#endif
#ifndef HB_NO_ERRNO
# include <cerrno>
#else
static int HB_UNUSED _hb_errno = 0;
# undef errno
# define errno _hb_errno
#endif
#define HB_STMT_START do
#define HB_STMT_END while (0)
#if defined(HAVE_ATEXIT) && !defined(HB_USE_ATEXIT)
/* atexit() is only safe to be called from shared libraries on certain
* platforms. Whitelist.
# if defined(__linux) && defined(__GLIBC_PREREQ)
# if __GLIBC_PREREQ(2,3)
/* From atexit() manpage, it's safe with glibc 2.2.3 on Linux. */
# define HB_USE_ATEXIT 1
# endif
# elif defined(_MSC_VER) || defined(__MINGW32__)
/* For MSVC:
* mingw32 headers say atexit is safe to use in shared libraries.
*/
# define HB_USE_ATEXIT 1
# elif defined(__ANDROID__)
/* This is available since Android NKD r8 or r8b:
*/
# define HB_USE_ATEXIT 1
# elif defined(__APPLE__)
/* For macOS and related platforms, the atexit man page indicates
* that it will be invoked when the library is unloaded, not only
* at application exit.
*/
# define HB_USE_ATEXIT 1
# endif
#endif /* defined(HAVE_ATEXIT) && !defined(HB_USE_ATEXIT) */
#ifdef HB_NO_ATEXIT
# undef HB_USE_ATEXIT
#endif
#ifndef HB_USE_ATEXIT
# define HB_USE_ATEXIT 0
#endif
#ifndef hb_atexit
#if !HB_USE_ATEXIT
# define hb_atexit(_) HB_STMT_START { if (0) (_) (); } HB_STMT_END
#else /* HB_USE_ATEXIT */
# ifdef HAVE_ATEXIT
# define hb_atexit atexit
# else
template <void (*function) (void)> struct hb_atexit_t { ~hb_atexit_t () { function (); } };
# define hb_atexit(f) static hb_atexit_t<f> _hb_atexit_##__LINE__;
# endif
#endif
#endif
// Locale business
#if !defined(HB_NO_SETLOCALE) && (!defined(HAVE_NEWLOCALE) || !defined(HAVE_USELOCALE))
#define HB_NO_SETLOCALE 1
#endif
#ifndef HB_NO_SETLOCALE
#include <locale.h>
#ifdef HAVE_XLOCALE_H
#include <xlocale.h> // Needed on BSD/OS X for uselocale
#endif
#ifdef WIN32
#define hb_locale_t _locale_t
#else
#define hb_locale_t locale_t
#endif
#define hb_setlocale setlocale
#define hb_uselocale uselocale
#else
#define hb_locale_t void *
#define hb_setlocale(Category, Locale) "C"
#define hb_uselocale(Locale) ((hb_locale_t) 0)
#endif
/* Lets assert int types. Saves trouble down the road. */
static_assert ((sizeof (hb_codepoint_t) == 4), "");
static_assert ((sizeof (hb_position_t) == 4), "");
static_assert ((sizeof (hb_mask_t) == 4), "");
static_assert ((sizeof (hb_var_int_t) == 4), "");
/* Pie time. */
#define HB_PI 3.14159265358979f
#define HB_2_PI (2.f * HB_PI)
/* Headers we include for everyone. Keep topologically sorted by dependency.
* They express dependency amongst themselves, but no other file should include
* them directly.*/
#include "hb-cplusplus.hh"
#include "hb-meta.hh"
#include "hb-mutex.hh"
#include "hb-number.hh"
#include "hb-atomic.hh" // Requires: hb-meta
#include "hb-null.hh" // Requires: hb-meta
#include "hb-algs.hh" // Requires: hb-meta hb-null hb-number
#include "hb-iter.hh" // Requires: hb-algs hb-meta
#include "hb-debug.hh" // Requires: hb-algs hb-atomic
#include "hb-array.hh" // Requires: hb-algs hb-iter hb-null
#include "hb-vector.hh" // Requires: hb-array hb-null
#include "hb-object.hh" // Requires: hb-atomic hb-mutex hb-vector
#endif /* HB_HH */