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// © 2016 and later: Unicode, Inc. and others.
// License & terms of use: http://www.unicode.org/copyright.html
/*
******************************************************************************
*
* Copyright (C) 1997-2016, International Business Machines
* Corporation and others. All Rights Reserved.
*
******************************************************************************
*
* FILE NAME : platform.h
*
* Date Name Description
* 05/13/98 nos Creation (content moved here from ptypes.h).
* 03/02/99 stephen Added AS400 support.
* 03/30/99 stephen Added Linux support.
* 04/13/99 stephen Reworked for autoconf.
******************************************************************************
*/
#ifndef _PLATFORM_H
#define _PLATFORM_H
#include "unicode/uconfig.h"
#include "unicode/uvernum.h"
/**
* \file
* \brief Basic types for the platform.
*
* This file used to be generated by autoconf/configure.
* Starting with ICU 49, platform.h is a normal source file,
* to simplify cross-compiling and working with non-autoconf/make build systems.
*
* When a value in this file does not work on a platform, then please
* try to derive it from the U_PLATFORM value
* (for which we might need a new value constant in rare cases)
* and/or from other macros that are predefined by the compiler
* or defined in standard (POSIX or platform or compiler) headers.
*
* As a temporary workaround, you can add an explicit \#define for some macros
* before it is first tested, or add an equivalent -D macro definition
* to the compiler's command line.
*
* Note: Some compilers provide ways to show the predefined macros.
* For example, with gcc you can compile an empty .c file and have the compiler
* print the predefined macros with
* \code
* gcc -E -dM -x c /dev/null | sort
* \endcode
* (You can provide an actual empty .c file rather than /dev/null.
* <code>-x c++</code> is for C++.)
*/
/**
* Define some things so that they can be documented.
* @internal
*/
#ifdef U_IN_DOXYGEN
/*
* Problem: "platform.h:335: warning: documentation for unknown define U_HAVE_STD_STRING found." means that U_HAVE_STD_STRING is not documented.
* Solution: #define any defines for non @internal API here, so that they are visible in the docs. If you just set PREDEFINED in Doxyfile.in, they won't be documented.
*/
/* None for now. */
#endif
/**
* \def U_PLATFORM
* The U_PLATFORM macro defines the platform we're on.
*
* We used to define one different, value-less macro per platform.
* That made it hard to know the set of relevant platforms and macros,
* and hard to deal with variants of platforms.
*
* Starting with ICU 49, we define platforms as numeric macros,
* with ranges of values for related platforms and their variants.
* The U_PLATFORM macro is set to one of these values.
*
* Historical note from the Solaris Wikipedia article:
* AT&T and Sun collaborated on a project to merge the most popular Unix variants
* on the market at that time: BSD, System V, and Xenix.
* This became Unix System V Release 4 (SVR4).
*
* @internal
*/
/** Unknown platform. @internal */
#define U_PF_UNKNOWN 0
/** Windows @internal */
#define U_PF_WINDOWS 1000
/** MinGW. Windows, calls to Win32 API, but using GNU gcc and binutils. @internal */
#define U_PF_MINGW 1800
/**
* Cygwin. Windows, calls to cygwin1.dll for Posix functions,
* using MSVC or GNU gcc and binutils.
* @internal
*/
#define U_PF_CYGWIN 1900
/* Reserve 2000 for U_PF_UNIX? */
/** HP-UX is based on UNIX System V. @internal */
#define U_PF_HPUX 2100
/** Solaris is a Unix operating system based on SVR4. @internal */
#define U_PF_SOLARIS 2600
/** BSD is a UNIX operating system derivative. @internal */
#define U_PF_BSD 3000
/** AIX is based on UNIX System V Releases and 4.3 BSD. @internal */
#define U_PF_AIX 3100
/** IRIX is based on UNIX System V with BSD extensions. @internal */
#define U_PF_IRIX 3200
/**
* Darwin is a POSIX-compliant operating system, composed of code developed by Apple,
* as well as code derived from NeXTSTEP, BSD, and other projects,
* built around the Mach kernel.
* Darwin forms the core set of components upon which Mac OS X, Apple TV, and iOS are based.
* (Original description modified from WikiPedia.)
* @internal
*/
#define U_PF_DARWIN 3500
/** iPhone OS (iOS) is a derivative of Mac OS X. @internal */
#define U_PF_IPHONE 3550
/** QNX is a commercial Unix-like real-time operating system related to BSD. @internal */
#define U_PF_QNX 3700
/** Linux is a Unix-like operating system. @internal */
#define U_PF_LINUX 4000
/**
* Native Client is pretty close to Linux.
* See https://developer.chrome.com/native-client and
* http://www.chromium.org/nativeclient
* @internal
*/
#define U_PF_BROWSER_NATIVE_CLIENT 4020
/** Android is based on Linux. @internal */
#define U_PF_ANDROID 4050
/** Fuchsia is a POSIX-ish platform. @internal */
#define U_PF_FUCHSIA 4100
/* Maximum value for Linux-based platform is 4499 */
/**
* Emscripten is a C++ transpiler for the Web that can target asm.js or
* WebAssembly. It provides some POSIX-compatible wrappers and stubs and
* some Linux-like functionality, but is not fully compatible with
* either.
* @internal
*/
#define U_PF_EMSCRIPTEN 5010
/** z/OS is the successor to OS/390 which was the successor to MVS. @internal */
#define U_PF_OS390 9000
/** "IBM i" is the current name of what used to be i5/OS and earlier OS/400. @internal */
#define U_PF_OS400 9400
#ifdef U_PLATFORM
/* Use the predefined value. */
#elif defined(__MINGW32__)
# define U_PLATFORM U_PF_MINGW
#elif defined(__CYGWIN__)
# define U_PLATFORM U_PF_CYGWIN
#elif defined(WIN32) || defined(_WIN32) || defined(WIN64) || defined(_WIN64)
# define U_PLATFORM U_PF_WINDOWS
#elif defined(__ANDROID__)
# define U_PLATFORM U_PF_ANDROID
/* Android wchar_t support depends on the API level. */
# include <android/api-level.h>
#elif defined(__pnacl__) || defined(__native_client__)
# define U_PLATFORM U_PF_BROWSER_NATIVE_CLIENT
#elif defined(__Fuchsia__)
# define U_PLATFORM U_PF_FUCHSIA
#elif defined(linux) || defined(__linux__) || defined(__linux)
# define U_PLATFORM U_PF_LINUX
#elif defined(__APPLE__) && defined(__MACH__)
# include <TargetConditionals.h>
# if (defined(TARGET_OS_IPHONE) && TARGET_OS_IPHONE) && (defined(TARGET_OS_MACCATALYST) && !TARGET_OS_MACCATALYST) /* variant of TARGET_OS_MAC */
# define U_PLATFORM U_PF_IPHONE
# else
# define U_PLATFORM U_PF_DARWIN
# endif
#elif defined(BSD) || defined(__FreeBSD__) || defined(__FreeBSD_kernel__) || defined(__NetBSD__) || defined(__OpenBSD__) || defined(__MirBSD__)
# if defined(__FreeBSD__)
# include <sys/endian.h>
# endif
# define U_PLATFORM U_PF_BSD
#elif defined(sun) || defined(__sun)
/* Check defined(__SVR4) || defined(__svr4__) to distinguish Solaris from SunOS? */
# define U_PLATFORM U_PF_SOLARIS
# if defined(__GNUC__)
/* Solaris/GCC needs this header file to get the proper endianness. Normally, this
* header file is included with stddef.h but on Solairs/GCC, the GCC version of stddef.h
* is included which does not include this header file.
*/
# include <sys/isa_defs.h>
# endif
#elif defined(_AIX) || defined(__TOS_AIX__)
# define U_PLATFORM U_PF_AIX
#elif defined(_hpux) || defined(hpux) || defined(__hpux)
# define U_PLATFORM U_PF_HPUX
#elif defined(sgi) || defined(__sgi)
# define U_PLATFORM U_PF_IRIX
#elif defined(__QNX__) || defined(__QNXNTO__)
# define U_PLATFORM U_PF_QNX
#elif defined(__TOS_MVS__)
# define U_PLATFORM U_PF_OS390
#elif defined(__OS400__) || defined(__TOS_OS400__)
# define U_PLATFORM U_PF_OS400
#elif defined(__EMSCRIPTEN__)
# define U_PLATFORM U_PF_EMSCRIPTEN
#else
# define U_PLATFORM U_PF_UNKNOWN
#endif
/**
* \def CYGWINMSVC
* Defined if this is Windows with Cygwin, but using MSVC rather than gcc.
* Otherwise undefined.
* @internal
*/
/* Commented out because this is already set in mh-cygwin-msvc
#if U_PLATFORM == U_PF_CYGWIN && defined(_MSC_VER)
# define CYGWINMSVC
#endif
*/
#ifdef U_IN_DOXYGEN
# define CYGWINMSVC
#endif
/**
* \def U_PLATFORM_USES_ONLY_WIN32_API
* Defines whether the platform uses only the Win32 API.
* Set to 1 for Windows/MSVC and MinGW but not Cygwin.
* @internal
*/
#ifdef U_PLATFORM_USES_ONLY_WIN32_API
/* Use the predefined value. */
#elif (U_PF_WINDOWS <= U_PLATFORM && U_PLATFORM <= U_PF_MINGW) || defined(CYGWINMSVC)
# define U_PLATFORM_USES_ONLY_WIN32_API 1
#else
/* Cygwin implements POSIX. */
# define U_PLATFORM_USES_ONLY_WIN32_API 0
#endif
/**
* \def U_PLATFORM_HAS_WIN32_API
* Defines whether the Win32 API is available on the platform.
* Set to 1 for Windows/MSVC, MinGW and Cygwin.
* @internal
*/
#ifdef U_PLATFORM_HAS_WIN32_API
/* Use the predefined value. */
#elif U_PF_WINDOWS <= U_PLATFORM && U_PLATFORM <= U_PF_CYGWIN
# define U_PLATFORM_HAS_WIN32_API 1
#else
# define U_PLATFORM_HAS_WIN32_API 0
#endif
/**
* \def U_PLATFORM_HAS_WINUWP_API
* Defines whether target is intended for Universal Windows Platform API
* Set to 1 for Windows10 Release Solution Configuration
* @internal
*/
#ifdef U_PLATFORM_HAS_WINUWP_API
/* Use the predefined value. */
#else
# define U_PLATFORM_HAS_WINUWP_API 0
#endif
/**
* \def U_PLATFORM_IMPLEMENTS_POSIX
* Defines whether the platform implements (most of) the POSIX API.
* Set to 1 for Cygwin and most other platforms.
* @internal
*/
#ifdef U_PLATFORM_IMPLEMENTS_POSIX
/* Use the predefined value. */
#elif U_PLATFORM_USES_ONLY_WIN32_API
# define U_PLATFORM_IMPLEMENTS_POSIX 0
#else
# define U_PLATFORM_IMPLEMENTS_POSIX 1
#endif
/**
* \def U_PLATFORM_IS_LINUX_BASED
* Defines whether the platform is Linux or one of its derivatives.
* @internal
*/
#ifdef U_PLATFORM_IS_LINUX_BASED
/* Use the predefined value. */
#elif U_PF_LINUX <= U_PLATFORM && U_PLATFORM <= 4499
# define U_PLATFORM_IS_LINUX_BASED 1
#else
# define U_PLATFORM_IS_LINUX_BASED 0
#endif
/**
* \def U_PLATFORM_IS_DARWIN_BASED
* Defines whether the platform is Darwin or one of its derivatives.
* @internal
*/
#ifdef U_PLATFORM_IS_DARWIN_BASED
/* Use the predefined value. */
#elif U_PF_DARWIN <= U_PLATFORM && U_PLATFORM <= U_PF_IPHONE
# define U_PLATFORM_IS_DARWIN_BASED 1
#else
# define U_PLATFORM_IS_DARWIN_BASED 0
#endif
/**
* \def U_HAVE_STDINT_H
* Defines whether stdint.h is available. It is a C99 standard header.
* We used to include inttypes.h which includes stdint.h but we usually do not need
* the additional definitions from inttypes.h.
* @internal
*/
#ifdef U_HAVE_STDINT_H
/* Use the predefined value. */
#elif U_PLATFORM_USES_ONLY_WIN32_API
# if defined(__BORLANDC__) || U_PLATFORM == U_PF_MINGW || (defined(_MSC_VER) && _MSC_VER>=1600)
/* Windows Visual Studio 9 and below do not have stdint.h & inttypes.h, but VS 2010 adds them. */
# define U_HAVE_STDINT_H 1
# else
# define U_HAVE_STDINT_H 0
# endif
#elif U_PLATFORM == U_PF_SOLARIS
/* Solaris has inttypes.h but not stdint.h. */
# define U_HAVE_STDINT_H 0
#elif U_PLATFORM == U_PF_AIX && !defined(_AIX51) && defined(_POWER)
/* PPC AIX <= 4.3 has inttypes.h but not stdint.h. */
# define U_HAVE_STDINT_H 0
#else
# define U_HAVE_STDINT_H 1
#endif
/**
* \def U_HAVE_INTTYPES_H
* Defines whether inttypes.h is available. It is a C99 standard header.
* We include inttypes.h where it is available but stdint.h is not.
* @internal
*/
#ifdef U_HAVE_INTTYPES_H
/* Use the predefined value. */
#elif U_PLATFORM == U_PF_SOLARIS
/* Solaris has inttypes.h but not stdint.h. */
# define U_HAVE_INTTYPES_H 1
#elif U_PLATFORM == U_PF_AIX && !defined(_AIX51) && defined(_POWER)
/* PPC AIX <= 4.3 has inttypes.h but not stdint.h. */
# define U_HAVE_INTTYPES_H 1
#else
/* Most platforms have both inttypes.h and stdint.h, or neither. */
# define U_HAVE_INTTYPES_H U_HAVE_STDINT_H
#endif
/*===========================================================================*/
/** @{ Compiler and environment features */
/*===========================================================================*/
/**
* \def U_GCC_MAJOR_MINOR
* Indicates whether the compiler is gcc (test for != 0),
* and if so, contains its major (times 100) and minor version numbers.
* If the compiler is not gcc, then U_GCC_MAJOR_MINOR == 0.
*
* For example, for testing for whether we have gcc, and whether it's 4.6 or higher,
* use "#if U_GCC_MAJOR_MINOR >= 406".
* @internal
*/
#ifdef __GNUC__
# define U_GCC_MAJOR_MINOR (__GNUC__ * 100 + __GNUC_MINOR__)
#else
# define U_GCC_MAJOR_MINOR 0
#endif
/**
* \def U_IS_BIG_ENDIAN
* Determines the endianness of the platform.
* @internal
*/
#ifdef U_IS_BIG_ENDIAN
/* Use the predefined value. */
#elif defined(BYTE_ORDER) && defined(BIG_ENDIAN)
# define U_IS_BIG_ENDIAN (BYTE_ORDER == BIG_ENDIAN)
#elif defined(__BYTE_ORDER__) && defined(__ORDER_BIG_ENDIAN__)
/* gcc */
# define U_IS_BIG_ENDIAN (__BYTE_ORDER__ == __ORDER_BIG_ENDIAN__)
#elif defined(__BIG_ENDIAN__) || defined(_BIG_ENDIAN)
# define U_IS_BIG_ENDIAN 1
#elif defined(__LITTLE_ENDIAN__) || defined(_LITTLE_ENDIAN)
# define U_IS_BIG_ENDIAN 0
#elif U_PLATFORM == U_PF_OS390 || U_PLATFORM == U_PF_OS400 || defined(__s390__) || defined(__s390x__)
/* These platforms do not appear to predefine any endianness macros. */
# define U_IS_BIG_ENDIAN 1
#elif defined(_PA_RISC1_0) || defined(_PA_RISC1_1) || defined(_PA_RISC2_0)
/* HPPA do not appear to predefine any endianness macros. */
# define U_IS_BIG_ENDIAN 1
#elif defined(sparc) || defined(__sparc) || defined(__sparc__)
/* Some sparc based systems (e.g. Linux) do not predefine any endianness macros. */
# define U_IS_BIG_ENDIAN 1
#else
# define U_IS_BIG_ENDIAN 0
#endif
/**
* \def U_HAVE_PLACEMENT_NEW
* Determines whether to override placement new and delete for STL.
* @stable ICU 2.6
*/
#ifdef U_HAVE_PLACEMENT_NEW
/* Use the predefined value. */
#elif defined(__BORLANDC__)
# define U_HAVE_PLACEMENT_NEW 0
#else
# define U_HAVE_PLACEMENT_NEW 1
#endif
/**
* \def U_HAVE_DEBUG_LOCATION_NEW
* Define this to define the MFC debug version of the operator new.
*
* @stable ICU 3.4
*/
#ifdef U_HAVE_DEBUG_LOCATION_NEW
/* Use the predefined value. */
#elif defined(_MSC_VER)
# define U_HAVE_DEBUG_LOCATION_NEW 1
#else
# define U_HAVE_DEBUG_LOCATION_NEW 0
#endif
/* Compatibility with compilers other than clang: http://clang.llvm.org/docs/LanguageExtensions.html */
#ifdef __has_attribute
# define UPRV_HAS_ATTRIBUTE(x) __has_attribute(x)
#else
# define UPRV_HAS_ATTRIBUTE(x) 0
#endif
#ifdef __has_cpp_attribute
# define UPRV_HAS_CPP_ATTRIBUTE(x) __has_cpp_attribute(x)
#else
# define UPRV_HAS_CPP_ATTRIBUTE(x) 0
#endif
#ifdef __has_declspec_attribute
# define UPRV_HAS_DECLSPEC_ATTRIBUTE(x) __has_declspec_attribute(x)
#else
# define UPRV_HAS_DECLSPEC_ATTRIBUTE(x) 0
#endif
#ifdef __has_builtin
# define UPRV_HAS_BUILTIN(x) __has_builtin(x)
#else
# define UPRV_HAS_BUILTIN(x) 0
#endif
#ifdef __has_feature
# define UPRV_HAS_FEATURE(x) __has_feature(x)
#else
# define UPRV_HAS_FEATURE(x) 0
#endif
#ifdef __has_extension
# define UPRV_HAS_EXTENSION(x) __has_extension(x)
#else
# define UPRV_HAS_EXTENSION(x) 0
#endif
#ifdef __has_warning
# define UPRV_HAS_WARNING(x) __has_warning(x)
#else
# define UPRV_HAS_WARNING(x) 0
#endif
#if defined(__clang__)
#define UPRV_NO_SANITIZE_UNDEFINED __attribute__((no_sanitize("undefined")))
#else
#define UPRV_NO_SANITIZE_UNDEFINED
#endif
/**
* \def U_MALLOC_ATTR
* Attribute to mark functions as malloc-like
* @internal
*/
#if defined(__GNUC__) && __GNUC__>=3
# define U_MALLOC_ATTR __attribute__ ((__malloc__))
#else
# define U_MALLOC_ATTR
#endif
/**
* \def U_ALLOC_SIZE_ATTR
* Attribute to specify the size of the allocated buffer for malloc-like functions
* @internal
*/
#if (defined(__GNUC__) && \
(__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 3))) || \
UPRV_HAS_ATTRIBUTE(alloc_size)
# define U_ALLOC_SIZE_ATTR(X) __attribute__ ((alloc_size(X)))
# define U_ALLOC_SIZE_ATTR2(X,Y) __attribute__ ((alloc_size(X,Y)))
#else
# define U_ALLOC_SIZE_ATTR(X)
# define U_ALLOC_SIZE_ATTR2(X,Y)
#endif
/**
* \def U_CPLUSPLUS_VERSION
* 0 if no C++; 1, 11, 14, ... if C++.
* Support for specific features cannot always be determined by the C++ version alone.
* @internal
*/
#ifdef U_CPLUSPLUS_VERSION
# if U_CPLUSPLUS_VERSION != 0 && !defined(__cplusplus)
# undef U_CPLUSPLUS_VERSION
# define U_CPLUSPLUS_VERSION 0
# endif
/* Otherwise use the predefined value. */
#elif !defined(__cplusplus)
# define U_CPLUSPLUS_VERSION 0
#elif __cplusplus >= 201402L || (defined(_MSVC_LANG) && _MSVC_LANG >= 201402L)
# define U_CPLUSPLUS_VERSION 14
#elif __cplusplus >= 201103L || (defined(_MSVC_LANG) && _MSVC_LANG >= 201103L)
# define U_CPLUSPLUS_VERSION 11
#else
// C++98 or C++03
# define U_CPLUSPLUS_VERSION 1
#endif
/**
* \def U_FALLTHROUGH
* Annotate intentional fall-through between switch labels.
* http://clang.llvm.org/docs/AttributeReference.html#fallthrough-clang-fallthrough
* @internal
*/
#ifndef __cplusplus
// Not for C.
#elif defined(U_FALLTHROUGH)
// Use the predefined value.
#elif defined(__clang__)
// Test for compiler vs. feature separately.
// Other compilers might choke on the feature test.
# if UPRV_HAS_CPP_ATTRIBUTE(clang::fallthrough) || \
(UPRV_HAS_FEATURE(cxx_attributes) && \
UPRV_HAS_WARNING("-Wimplicit-fallthrough"))
# define U_FALLTHROUGH [[clang::fallthrough]]
# endif
#elif defined(__GNUC__) && (__GNUC__ >= 7)
# define U_FALLTHROUGH __attribute__((fallthrough))
#endif
#ifndef U_FALLTHROUGH
# define U_FALLTHROUGH
#endif
/** @} */
/*===========================================================================*/
/** @{ Character data types */
/*===========================================================================*/
/**
* U_CHARSET_FAMILY is equal to this value when the platform is an ASCII based platform.
* @stable ICU 2.0
*/
#define U_ASCII_FAMILY 0
/**
* U_CHARSET_FAMILY is equal to this value when the platform is an EBCDIC based platform.
* @stable ICU 2.0
*/
#define U_EBCDIC_FAMILY 1
/**
* \def U_CHARSET_FAMILY
*
* <p>These definitions allow to specify the encoding of text
* in the char data type as defined by the platform and the compiler.
* It is enough to determine the code point values of "invariant characters",
* which are the ones shared by all encodings that are in use
* on a given platform.</p>
*
* <p>Those "invariant characters" should be all the uppercase and lowercase
* latin letters, the digits, the space, and "basic punctuation".
* Also, '\\n', '\\r', '\\t' should be available.</p>
*
* <p>The list of "invariant characters" is:<br>
* \code
* A-Z a-z 0-9 SPACE " % & ' ( ) * + , - . / : ; < = > ? _
* \endcode
* <br>
* (52 letters + 10 numbers + 20 punc/sym/space = 82 total)</p>
*
* <p>This matches the IBM Syntactic Character Set (CS 640).</p>
*
* <p>In other words, all the graphic characters in 7-bit ASCII should
* be safely accessible except the following:</p>
*
* \code
* '\' <backslash>
* '[' <left bracket>
* ']' <right bracket>
* '{' <left brace>
* '}' <right brace>
* '^' <circumflex>
* '~' <tilde>
* '!' <exclamation mark>
* '#' <number sign>
* '|' <vertical line>
* '$' <dollar sign>
* '@' <commercial at>
* '`' <grave accent>
* \endcode
* @stable ICU 2.0
*/
#ifdef U_CHARSET_FAMILY
/* Use the predefined value. */
#elif U_PLATFORM == U_PF_OS390 && (!defined(__CHARSET_LIB) || !__CHARSET_LIB)
# define U_CHARSET_FAMILY U_EBCDIC_FAMILY
#elif U_PLATFORM == U_PF_OS400 && !defined(__UTF32__)
# define U_CHARSET_FAMILY U_EBCDIC_FAMILY
#else
# define U_CHARSET_FAMILY U_ASCII_FAMILY
#endif
/**
* \def U_CHARSET_IS_UTF8
*
* Hardcode the default charset to UTF-8.
*
* If this is set to 1, then
* - ICU will assume that all non-invariant char*, StringPiece, std::string etc.
* contain UTF-8 text, regardless of what the system API uses
* - some ICU code will use fast functions like u_strFromUTF8()
* rather than the more general and more heavy-weight conversion API (ucnv.h)
* - ucnv_getDefaultName() always returns "UTF-8"
* - ucnv_setDefaultName() is disabled and will not change the default charset
* - static builds of ICU are smaller
* - more functionality is available with the UCONFIG_NO_CONVERSION build-time
* configuration option (see unicode/uconfig.h)
* - the UCONFIG_NO_CONVERSION build option in uconfig.h is more usable
*
* @stable ICU 4.2
* @see UCONFIG_NO_CONVERSION
*/
#ifdef U_CHARSET_IS_UTF8
/* Use the predefined value. */
#elif U_PLATFORM_IS_LINUX_BASED || U_PLATFORM_IS_DARWIN_BASED || \
U_PLATFORM == U_PF_EMSCRIPTEN
# define U_CHARSET_IS_UTF8 1
#else
# define U_CHARSET_IS_UTF8 0
#endif
/** @} */
/*===========================================================================*/
/** @{ Information about wchar support */
/*===========================================================================*/
/**
* \def U_HAVE_WCHAR_H
* Indicates whether <wchar.h> is available (1) or not (0). Set to 1 by default.
*
* @stable ICU 2.0
*/
#ifdef U_HAVE_WCHAR_H
/* Use the predefined value. */
#elif U_PLATFORM == U_PF_ANDROID && __ANDROID_API__ < 9
/*
* Android before Gingerbread (Android 2.3, API level 9) did not support wchar_t.
* The type and header existed, but the library functions did not work as expected.
* The size of wchar_t was 1 but L"xyz" string literals had 32-bit units anyway.
*/
# define U_HAVE_WCHAR_H 0
#else
# define U_HAVE_WCHAR_H 1
#endif
/**
* \def U_SIZEOF_WCHAR_T
* U_SIZEOF_WCHAR_T==sizeof(wchar_t)
*
* @stable ICU 2.0
*/
#ifdef U_SIZEOF_WCHAR_T
/* Use the predefined value. */
#elif (U_PLATFORM == U_PF_ANDROID && __ANDROID_API__ < 9)
/*
* Classic Mac OS and Mac OS X before 10.3 (Panther) did not support wchar_t or wstring.
* Newer Mac OS X has size 4.
*/
# define U_SIZEOF_WCHAR_T 1
#elif U_PLATFORM_HAS_WIN32_API || U_PLATFORM == U_PF_CYGWIN
# define U_SIZEOF_WCHAR_T 2
#elif U_PLATFORM == U_PF_AIX
/*
* AIX 6.1 information, section "Wide character data representation":
* "... the wchar_t datatype is 32-bit in the 64-bit environment and
* 16-bit in the 32-bit environment."
* and
* "All locales use Unicode for their wide character code values (process code),
* except the IBM-eucTW codeset."
*/
# ifdef __64BIT__
# define U_SIZEOF_WCHAR_T 4
# else
# define U_SIZEOF_WCHAR_T 2
# endif
#elif U_PLATFORM == U_PF_OS390
/*
* z/OS V1R11 information center, section "LP64 | ILP32":
* "In 31-bit mode, the size of long and pointers is 4 bytes and the size of wchar_t is 2 bytes.
* Under LP64, the size of long and pointer is 8 bytes and the size of wchar_t is 4 bytes."
*/
# ifdef _LP64
# define U_SIZEOF_WCHAR_T 4
# else
# define U_SIZEOF_WCHAR_T 2
# endif
#elif U_PLATFORM == U_PF_OS400
# if defined(__UTF32__)
/*
* LOCALETYPE(*LOCALEUTF) is specified.
* Wide-character strings are in UTF-32,
* narrow-character strings are in UTF-8.
*/
# define U_SIZEOF_WCHAR_T 4
# elif defined(__UCS2__)
/*
* LOCALETYPE(*LOCALEUCS2) is specified.
* Wide-character strings are in UCS-2,
* narrow-character strings are in EBCDIC.
*/
# define U_SIZEOF_WCHAR_T 2
# else
/*
* LOCALETYPE(*CLD) or LOCALETYPE(*LOCALE) is specified.
* Wide-character strings are in 16-bit EBCDIC,
* narrow-character strings are in EBCDIC.
*/
# define U_SIZEOF_WCHAR_T 2
# endif
#else
# define U_SIZEOF_WCHAR_T 4
#endif
#ifndef U_HAVE_WCSCPY
#define U_HAVE_WCSCPY U_HAVE_WCHAR_H
#endif
/** @} */
/**
* \def U_HAVE_CHAR16_T
* Defines whether the char16_t type is available for UTF-16
* and u"abc" UTF-16 string literals are supported.
* This is a new standard type and standard string literal syntax in C++11
* but has been available in some compilers before.
* @internal
*/
#ifdef U_HAVE_CHAR16_T
/* Use the predefined value. */
#else
/*
* Notes:
* C++11 and C11 require support for UTF-16 literals
* TODO: Fix for plain C. Doesn't work on Mac.
*/
# if U_CPLUSPLUS_VERSION >= 11 || (defined(__STDC_VERSION__) && __STDC_VERSION__ >= 201112L)
# define U_HAVE_CHAR16_T 1
# else
# define U_HAVE_CHAR16_T 0
# endif
#endif
/**
* @{
* \def U_DECLARE_UTF16
* Do not use this macro because it is not defined on all platforms.
* Use the UNICODE_STRING or U_STRING_DECL macros instead.
* @internal
*/
#ifdef U_DECLARE_UTF16
/* Use the predefined value. */
#elif U_HAVE_CHAR16_T \
|| (defined(__xlC__) && defined(__IBM_UTF_LITERAL) && U_SIZEOF_WCHAR_T != 2) \
|| (defined(__HP_aCC) && __HP_aCC >= 035000) \
|| (defined(__HP_cc) && __HP_cc >= 111106) \
|| (defined(U_IN_DOXYGEN))
# define U_DECLARE_UTF16(string) u ## string
#elif U_SIZEOF_WCHAR_T == 2 \
&& (U_CHARSET_FAMILY == 0 || (U_PF_OS390 <= U_PLATFORM && U_PLATFORM <= U_PF_OS400 && defined(__UCS2__)))
# define U_DECLARE_UTF16(string) L ## string
#else
/* Leave U_DECLARE_UTF16 undefined. See unistr.h. */
#endif
/** @} */
/*===========================================================================*/
/** @{ Symbol import-export control */
/*===========================================================================*/
#ifdef U_EXPORT
/* Use the predefined value. */
#elif defined(U_STATIC_IMPLEMENTATION)
# define U_EXPORT
#elif defined(_MSC_VER) || (UPRV_HAS_DECLSPEC_ATTRIBUTE(__dllexport__) && \
UPRV_HAS_DECLSPEC_ATTRIBUTE(__dllimport__))
# define U_EXPORT __declspec(dllexport)
#elif defined(__GNUC__)
# define U_EXPORT __attribute__((visibility("default")))
#elif (defined(__SUNPRO_CC) && __SUNPRO_CC >= 0x550) \
|| (defined(__SUNPRO_C) && __SUNPRO_C >= 0x550)
# define U_EXPORT __global
/*#elif defined(__HP_aCC) || defined(__HP_cc)
# define U_EXPORT __declspec(dllexport)*/
#else
# define U_EXPORT
#endif
/* U_CALLCONV is related to U_EXPORT2 */
#ifdef U_EXPORT2
/* Use the predefined value. */
#elif defined(_MSC_VER)
# define U_EXPORT2 __cdecl
#else
# define U_EXPORT2
#endif
#ifdef U_IMPORT
/* Use the predefined value. */
#elif defined(_MSC_VER) || (UPRV_HAS_DECLSPEC_ATTRIBUTE(__dllexport__) && \
UPRV_HAS_DECLSPEC_ATTRIBUTE(__dllimport__))
/* Windows needs to export/import data. */
# define U_IMPORT __declspec(dllimport)
#else
# define U_IMPORT
#endif
/**
* \def U_HIDDEN
* This is used to mark internal structs declared within external classes,
* to prevent the internal structs from having the same visibility as the
* class within which they are declared.
* @internal
*/
#ifdef U_HIDDEN
/* Use the predefined value. */
#elif defined(__GNUC__)
# define U_HIDDEN __attribute__((visibility("hidden")))
#else
# define U_HIDDEN
#endif
/**
* \def U_CALLCONV
* Similar to U_CDECL_BEGIN/U_CDECL_END, this qualifier is necessary
* in callback function typedefs to make sure that the calling convention
* is compatible.
*
* This is only used for non-ICU-API functions.
* When a function is a public ICU API,
* you must use the U_CAPI and U_EXPORT2 qualifiers.
*
* Please note, you need to use U_CALLCONV after the *.
*
* NO : "static const char U_CALLCONV *func( . . . )"
* YES: "static const char* U_CALLCONV func( . . . )"
*
* @stable ICU 2.0
*/
#if U_PLATFORM == U_PF_OS390 && defined(__cplusplus)
# define U_CALLCONV __cdecl
#else
# define U_CALLCONV U_EXPORT2
#endif
/**
* \def U_CALLCONV_FPTR
* Similar to U_CALLCONV, but only used on function pointers.
* @internal
*/
#if U_PLATFORM == U_PF_OS390 && defined(__cplusplus)
# define U_CALLCONV_FPTR U_CALLCONV
#else
# define U_CALLCONV_FPTR
#endif
/** @} */
#endif // _PLATFORM_H