826 lines
26 KiB
C++
826 lines
26 KiB
C++
/*
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******************************************************************************
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*
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* Copyright (C) 1997-2015, International Business Machines
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* Corporation and others. All Rights Reserved.
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*
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******************************************************************************
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*
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* FILE NAME : platform.h
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*
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* Date Name Description
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* 05/13/98 nos Creation (content moved here from ptypes.h).
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* 03/02/99 stephen Added AS400 support.
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* 03/30/99 stephen Added Linux support.
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* 04/13/99 stephen Reworked for autoconf.
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******************************************************************************
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*/
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#ifndef _PLATFORM_H
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#define _PLATFORM_H
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#include "unicode/uconfig.h"
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#include "unicode/uvernum.h"
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/**
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* \file
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* \brief Basic types for the platform.
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*
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* This file used to be generated by autoconf/configure.
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* Starting with ICU 49, platform.h is a normal source file,
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* to simplify cross-compiling and working with non-autoconf/make build systems.
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*
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* When a value in this file does not work on a platform, then please
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* try to derive it from the U_PLATFORM value
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* (for which we might need a new value constant in rare cases)
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* and/or from other macros that are predefined by the compiler
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* or defined in standard (POSIX or platform or compiler) headers.
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*
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* As a temporary workaround, you can add an explicit <code>#define</code> for some macros
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* before it is first tested, or add an equivalent -D macro definition
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* to the compiler's command line.
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*
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* Note: Some compilers provide ways to show the predefined macros.
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* For example, with gcc you can compile an empty .c file and have the compiler
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* print the predefined macros with
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* \code
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* gcc -E -dM -x c /dev/null | sort
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* \endcode
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* (You can provide an actual empty .c file rather than /dev/null.
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* <code>-x c++</code> is for C++.)
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*/
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/**
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* Define some things so that they can be documented.
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* @internal
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*/
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#ifdef U_IN_DOXYGEN
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/*
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* Problem: "platform.h:335: warning: documentation for unknown define U_HAVE_STD_STRING found." means that U_HAVE_STD_STRING is not documented.
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* 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.
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*/
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/* None for now. */
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#endif
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/**
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* \def U_PLATFORM
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* The U_PLATFORM macro defines the platform we're on.
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*
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* We used to define one different, value-less macro per platform.
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* That made it hard to know the set of relevant platforms and macros,
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* and hard to deal with variants of platforms.
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*
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* Starting with ICU 49, we define platforms as numeric macros,
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* with ranges of values for related platforms and their variants.
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* The U_PLATFORM macro is set to one of these values.
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*
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* Historical note from the Solaris Wikipedia article:
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* AT&T and Sun collaborated on a project to merge the most popular Unix variants
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* on the market at that time: BSD, System V, and Xenix.
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* This became Unix System V Release 4 (SVR4).
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*
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* @internal
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*/
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/** Unknown platform. @internal */
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#define U_PF_UNKNOWN 0
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/** Windows @internal */
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#define U_PF_WINDOWS 1000
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/** MinGW. Windows, calls to Win32 API, but using GNU gcc and binutils. @internal */
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#define U_PF_MINGW 1800
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/**
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* Cygwin. Windows, calls to cygwin1.dll for Posix functions,
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* using MSVC or GNU gcc and binutils.
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* @internal
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*/
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#define U_PF_CYGWIN 1900
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/* Reserve 2000 for U_PF_UNIX? */
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/** HP-UX is based on UNIX System V. @internal */
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#define U_PF_HPUX 2100
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/** Solaris is a Unix operating system based on SVR4. @internal */
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#define U_PF_SOLARIS 2600
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/** BSD is a UNIX operating system derivative. @internal */
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#define U_PF_BSD 3000
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/** AIX is based on UNIX System V Releases and 4.3 BSD. @internal */
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#define U_PF_AIX 3100
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/** IRIX is based on UNIX System V with BSD extensions. @internal */
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#define U_PF_IRIX 3200
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/**
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* Darwin is a POSIX-compliant operating system, composed of code developed by Apple,
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* as well as code derived from NeXTSTEP, BSD, and other projects,
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* built around the Mach kernel.
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* Darwin forms the core set of components upon which Mac OS X, Apple TV, and iOS are based.
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* (Original description modified from WikiPedia.)
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* @internal
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*/
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#define U_PF_DARWIN 3500
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/** iPhone OS (iOS) is a derivative of Mac OS X. @internal */
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#define U_PF_IPHONE 3550
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/** QNX is a commercial Unix-like real-time operating system related to BSD. @internal */
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#define U_PF_QNX 3700
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/** Linux is a Unix-like operating system. @internal */
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#define U_PF_LINUX 4000
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/**
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* Native Client is pretty close to Linux.
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* See https://developer.chrome.com/native-client and
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* http://www.chromium.org/nativeclient
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* @internal
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*/
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#define U_PF_BROWSER_NATIVE_CLIENT 4020
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/** Android is based on Linux. @internal */
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#define U_PF_ANDROID 4050
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/* Maximum value for Linux-based platform is 4499 */
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/** z/OS is the successor to OS/390 which was the successor to MVS. @internal */
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#define U_PF_OS390 9000
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/** "IBM i" is the current name of what used to be i5/OS and earlier OS/400. @internal */
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#define U_PF_OS400 9400
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#ifdef U_PLATFORM
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/* Use the predefined value. */
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#elif defined(__MINGW32__)
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# define U_PLATFORM U_PF_MINGW
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#elif defined(__CYGWIN__)
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# define U_PLATFORM U_PF_CYGWIN
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#elif defined(WIN32) || defined(_WIN32) || defined(WIN64) || defined(_WIN64)
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# define U_PLATFORM U_PF_WINDOWS
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#elif defined(__ANDROID__)
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# define U_PLATFORM U_PF_ANDROID
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/* Android wchar_t support depends on the API level. */
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# include <android/api-level.h>
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#elif defined(__native_client__)
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# define U_PLATFORM U_PF_BROWSER_NATIVE_CLIENT
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#elif defined(linux) || defined(__linux__) || defined(__linux)
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# define U_PLATFORM U_PF_LINUX
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#elif defined(__APPLE__) && defined(__MACH__)
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# include <TargetConditionals.h>
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# if defined(TARGET_OS_IPHONE) && TARGET_OS_IPHONE /* variant of TARGET_OS_MAC */
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# define U_PLATFORM U_PF_IPHONE
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# else
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# define U_PLATFORM U_PF_DARWIN
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# endif
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#elif defined(BSD) || defined(__FreeBSD__) || defined(__FreeBSD_kernel__) || defined(__NetBSD__) || defined(__OpenBSD__) || defined(__MirBSD__)
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# define U_PLATFORM U_PF_BSD
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#elif defined(sun) || defined(__sun)
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/* Check defined(__SVR4) || defined(__svr4__) to distinguish Solaris from SunOS? */
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# define U_PLATFORM U_PF_SOLARIS
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# if defined(__GNUC__)
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/* Solaris/GCC needs this header file to get the proper endianness. Normally, this
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* header file is included with stddef.h but on Solairs/GCC, the GCC version of stddef.h
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* is included which does not include this header file.
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*/
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# include <sys/isa_defs.h>
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# endif
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#elif defined(_AIX) || defined(__TOS_AIX__)
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# define U_PLATFORM U_PF_AIX
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#elif defined(_hpux) || defined(hpux) || defined(__hpux)
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# define U_PLATFORM U_PF_HPUX
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#elif defined(sgi) || defined(__sgi)
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# define U_PLATFORM U_PF_IRIX
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#elif defined(__QNX__) || defined(__QNXNTO__)
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# define U_PLATFORM U_PF_QNX
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#elif defined(__TOS_MVS__)
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# define U_PLATFORM U_PF_OS390
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#elif defined(__OS400__) || defined(__TOS_OS400__)
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# define U_PLATFORM U_PF_OS400
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#else
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# define U_PLATFORM U_PF_UNKNOWN
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#endif
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/**
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* \def CYGWINMSVC
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* Defined if this is Windows with Cygwin, but using MSVC rather than gcc.
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* Otherwise undefined.
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* @internal
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*/
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/* Commented out because this is already set in mh-cygwin-msvc
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#if U_PLATFORM == U_PF_CYGWIN && defined(_MSC_VER)
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# define CYGWINMSVC
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#endif
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*/
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/**
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* \def U_PLATFORM_USES_ONLY_WIN32_API
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* Defines whether the platform uses only the Win32 API.
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* Set to 1 for Windows/MSVC and MinGW but not Cygwin.
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* @internal
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*/
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#ifdef U_PLATFORM_USES_ONLY_WIN32_API
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/* Use the predefined value. */
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#elif (U_PF_WINDOWS <= U_PLATFORM && U_PLATFORM <= U_PF_MINGW) || defined(CYGWINMSVC)
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# define U_PLATFORM_USES_ONLY_WIN32_API 1
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#else
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/* Cygwin implements POSIX. */
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# define U_PLATFORM_USES_ONLY_WIN32_API 0
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#endif
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/**
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* \def U_PLATFORM_HAS_WIN32_API
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* Defines whether the Win32 API is available on the platform.
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* Set to 1 for Windows/MSVC, MinGW and Cygwin.
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* @internal
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*/
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#ifdef U_PLATFORM_HAS_WIN32_API
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/* Use the predefined value. */
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#elif U_PF_WINDOWS <= U_PLATFORM && U_PLATFORM <= U_PF_CYGWIN
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# define U_PLATFORM_HAS_WIN32_API 1
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#else
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# define U_PLATFORM_HAS_WIN32_API 0
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#endif
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/**
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* \def U_PLATFORM_IMPLEMENTS_POSIX
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* Defines whether the platform implements (most of) the POSIX API.
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* Set to 1 for Cygwin and most other platforms.
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* @internal
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*/
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#ifdef U_PLATFORM_IMPLEMENTS_POSIX
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/* Use the predefined value. */
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#elif U_PLATFORM_USES_ONLY_WIN32_API
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# define U_PLATFORM_IMPLEMENTS_POSIX 0
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#else
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# define U_PLATFORM_IMPLEMENTS_POSIX 1
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#endif
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/**
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* \def U_PLATFORM_IS_LINUX_BASED
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* Defines whether the platform is Linux or one of its derivatives.
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* @internal
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*/
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#ifdef U_PLATFORM_IS_LINUX_BASED
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/* Use the predefined value. */
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#elif U_PF_LINUX <= U_PLATFORM && U_PLATFORM <= 4499
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# define U_PLATFORM_IS_LINUX_BASED 1
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#else
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# define U_PLATFORM_IS_LINUX_BASED 0
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#endif
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/**
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* \def U_PLATFORM_IS_DARWIN_BASED
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* Defines whether the platform is Darwin or one of its derivatives.
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* @internal
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*/
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#ifdef U_PLATFORM_IS_DARWIN_BASED
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/* Use the predefined value. */
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#elif U_PF_DARWIN <= U_PLATFORM && U_PLATFORM <= U_PF_IPHONE
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# define U_PLATFORM_IS_DARWIN_BASED 1
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#else
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# define U_PLATFORM_IS_DARWIN_BASED 0
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#endif
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/**
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* \def U_HAVE_STDINT_H
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* Defines whether stdint.h is available. It is a C99 standard header.
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* We used to include inttypes.h which includes stdint.h but we usually do not need
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* the additional definitions from inttypes.h.
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* @internal
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*/
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#ifdef U_HAVE_STDINT_H
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/* Use the predefined value. */
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#elif U_PLATFORM_USES_ONLY_WIN32_API
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# if defined(__BORLANDC__) || U_PLATFORM == U_PF_MINGW || (defined(_MSC_VER) && _MSC_VER>=1600)
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/* Windows Visual Studio 9 and below do not have stdint.h & inttypes.h, but VS 2010 adds them. */
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# define U_HAVE_STDINT_H 1
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# else
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# define U_HAVE_STDINT_H 0
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# endif
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#elif U_PLATFORM == U_PF_SOLARIS
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/* Solaris has inttypes.h but not stdint.h. */
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# define U_HAVE_STDINT_H 0
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#elif U_PLATFORM == U_PF_AIX && !defined(_AIX51) && defined(_POWER)
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/* PPC AIX <= 4.3 has inttypes.h but not stdint.h. */
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# define U_HAVE_STDINT_H 0
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#else
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# define U_HAVE_STDINT_H 1
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#endif
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/**
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* \def U_HAVE_INTTYPES_H
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* Defines whether inttypes.h is available. It is a C99 standard header.
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* We include inttypes.h where it is available but stdint.h is not.
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* @internal
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*/
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#ifdef U_HAVE_INTTYPES_H
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/* Use the predefined value. */
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#elif U_PLATFORM == U_PF_SOLARIS
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/* Solaris has inttypes.h but not stdint.h. */
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# define U_HAVE_INTTYPES_H 1
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#elif U_PLATFORM == U_PF_AIX && !defined(_AIX51) && defined(_POWER)
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/* PPC AIX <= 4.3 has inttypes.h but not stdint.h. */
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# define U_HAVE_INTTYPES_H 1
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#else
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/* Most platforms have both inttypes.h and stdint.h, or neither. */
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# define U_HAVE_INTTYPES_H U_HAVE_STDINT_H
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#endif
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/**
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* \def U_IOSTREAM_SOURCE
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* Defines what support for C++ streams is available.
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*
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* If U_IOSTREAM_SOURCE is set to 199711, then <iostream> is available
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* (the ISO/IEC C++ FDIS was published in November 1997), and then
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* one should qualify streams using the std namespace in ICU header
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* files.
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* Starting with ICU 49, this is the only supported version.
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*
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* If U_IOSTREAM_SOURCE is set to 198506, then <iostream.h> is
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* available instead (in June 1985 Stroustrup published
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* "An Extensible I/O Facility for C++" at the summer USENIX conference).
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* Starting with ICU 49, this version is not supported any more.
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*
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* If U_IOSTREAM_SOURCE is 0 (or any value less than 199711),
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* then C++ streams are not available and
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* support for them will be silently suppressed in ICU.
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*
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* @internal
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*/
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#ifndef U_IOSTREAM_SOURCE
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#define U_IOSTREAM_SOURCE 199711
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#endif
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/**
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* \def U_HAVE_STD_STRING
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* Defines whether the standard C++ (STL) <string> header is available.
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* @internal
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*/
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#ifdef U_HAVE_STD_STRING
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/* Use the predefined value. */
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#else
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# define U_HAVE_STD_STRING 1
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#endif
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/*===========================================================================*/
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/** @{ Compiler and environment features */
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/*===========================================================================*/
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/**
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* \def U_GCC_MAJOR_MINOR
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* Indicates whether the compiler is gcc (test for != 0),
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* and if so, contains its major (times 100) and minor version numbers.
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* If the compiler is not gcc, then U_GCC_MAJOR_MINOR == 0.
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*
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* For example, for testing for whether we have gcc, and whether it's 4.6 or higher,
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* use "#if U_GCC_MAJOR_MINOR >= 406".
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* @internal
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*/
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#ifdef __GNUC__
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# define U_GCC_MAJOR_MINOR (__GNUC__ * 100 + __GNUC_MINOR__)
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#else
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# define U_GCC_MAJOR_MINOR 0
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#endif
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/**
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* \def U_IS_BIG_ENDIAN
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* Determines the endianness of the platform.
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* @internal
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*/
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#ifdef U_IS_BIG_ENDIAN
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/* Use the predefined value. */
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#elif defined(BYTE_ORDER) && defined(BIG_ENDIAN)
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# define U_IS_BIG_ENDIAN (BYTE_ORDER == BIG_ENDIAN)
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#elif defined(__BYTE_ORDER__) && defined(__ORDER_BIG_ENDIAN__)
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/* gcc */
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# define U_IS_BIG_ENDIAN (__BYTE_ORDER__ == __ORDER_BIG_ENDIAN__)
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#elif defined(__BIG_ENDIAN__) || defined(_BIG_ENDIAN)
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# define U_IS_BIG_ENDIAN 1
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#elif defined(__LITTLE_ENDIAN__) || defined(_LITTLE_ENDIAN)
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# define U_IS_BIG_ENDIAN 0
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#elif U_PLATFORM == U_PF_OS390 || U_PLATFORM == U_PF_OS400 || defined(__s390__) || defined(__s390x__)
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/* These platforms do not appear to predefine any endianness macros. */
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# define U_IS_BIG_ENDIAN 1
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#elif defined(_PA_RISC1_0) || defined(_PA_RISC1_1) || defined(_PA_RISC2_0)
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|
/* HPPA do not appear to predefine any endianness macros. */
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# define U_IS_BIG_ENDIAN 1
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#elif defined(sparc) || defined(__sparc) || defined(__sparc__)
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/* Some sparc based systems (e.g. Linux) do not predefine any endianness macros. */
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# define U_IS_BIG_ENDIAN 1
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#else
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# define U_IS_BIG_ENDIAN 0
|
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#endif
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/**
|
|
* \def U_HAVE_PLACEMENT_NEW
|
|
* Determines whether to override placement new and delete for STL.
|
|
* @stable ICU 2.6
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|
*/
|
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#ifdef U_HAVE_PLACEMENT_NEW
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/* Use the predefined value. */
|
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#elif defined(__BORLANDC__)
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# define U_HAVE_PLACEMENT_NEW 0
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#else
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# define U_HAVE_PLACEMENT_NEW 1
|
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#endif
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|
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/**
|
|
* \def U_HAVE_DEBUG_LOCATION_NEW
|
|
* Define this to define the MFC debug version of the operator new.
|
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*
|
|
* @stable ICU 3.4
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|
*/
|
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#ifdef U_HAVE_DEBUG_LOCATION_NEW
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/* Use the predefined value. */
|
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#elif defined(_MSC_VER)
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# define U_HAVE_DEBUG_LOCATION_NEW 1
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#else
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# define U_HAVE_DEBUG_LOCATION_NEW 0
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#endif
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/* Compatibility with non clang compilers */
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#ifndef __has_attribute
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# define __has_attribute(x) 0
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|
#endif
|
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#ifndef __has_builtin
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# define __has_builtin(x) 0
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#endif
|
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#ifndef __has_feature
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# define __has_feature(x) 0
|
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#endif
|
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#ifndef __has_extension
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# define __has_extension(x) 0
|
|
#endif
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/**
|
|
* \def U_MALLOC_ATTR
|
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* Attribute to mark functions as malloc-like
|
|
* @internal
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*/
|
|
#if defined(__GNUC__) && __GNUC__>=3
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# define U_MALLOC_ATTR __attribute__ ((__malloc__))
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#else
|
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# define U_MALLOC_ATTR
|
|
#endif
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|
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/**
|
|
* \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))) || __has_attribute(alloc_size)
|
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# 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
|
|
# define U_CPLUSPLUS_VERSION 14
|
|
#elif __cplusplus >= 201103L
|
|
# define U_CPLUSPLUS_VERSION 11
|
|
#else
|
|
// C++98 or C++03
|
|
# define U_CPLUSPLUS_VERSION 1
|
|
#endif
|
|
|
|
/**
|
|
* \def U_HAVE_RVALUE_REFERENCES
|
|
* Set to 1 if the compiler supports rvalue references.
|
|
* C++11 feature, necessary for move constructor & move assignment.
|
|
* @internal
|
|
*/
|
|
#ifdef U_HAVE_RVALUE_REFERENCES
|
|
/* Use the predefined value. */
|
|
#elif U_CPLUSPLUS_VERSION >= 11 || __has_feature(cxx_rvalue_references) \
|
|
|| defined(__GXX_EXPERIMENTAL_CXX0X__) \
|
|
|| (defined(_MSC_VER) && _MSC_VER >= 1600) /* Visual Studio 2010 */
|
|
# define U_HAVE_RVALUE_REFERENCES 1
|
|
#else
|
|
# define U_HAVE_RVALUE_REFERENCES 0
|
|
#endif
|
|
|
|
/**
|
|
* \def U_NOEXCEPT
|
|
* "noexcept" if supported, otherwise empty.
|
|
* Some code, especially STL containers, uses move semantics of objects only
|
|
* if the move constructor and the move operator are declared as not throwing exceptions.
|
|
* @internal
|
|
*/
|
|
#ifdef U_NOEXCEPT
|
|
/* Use the predefined value. */
|
|
#elif U_CPLUSPLUS_VERSION >= 11 || __has_feature(cxx_noexcept) || __has_extension(cxx_noexcept) \
|
|
|| (defined(_MSC_VER) && _MSC_VER >= 1900) /* Visual Studio 2015 */
|
|
# define U_NOEXCEPT noexcept
|
|
#else
|
|
# define U_NOEXCEPT
|
|
#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 == U_PF_ANDROID || U_PLATFORM_IS_DARWIN_BASED
|
|
# 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++0x
|
|
* but has been available in some compilers before.
|
|
* @internal
|
|
*/
|
|
#ifdef U_HAVE_CHAR16_T
|
|
/* Use the predefined value. */
|
|
#else
|
|
/*
|
|
* Notes:
|
|
* Visual Studio 10 (_MSC_VER>=1600) defines char16_t but
|
|
* does not support u"abc" string literals.
|
|
* gcc 4.4 defines the __CHAR16_TYPE__ macro to a usable type but
|
|
* does not support u"abc" string literals.
|
|
* C++11 and C11 require support for UTF-16 literals
|
|
*/
|
|
# 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)
|
|
# 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(__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)*/
|
|
#elif defined(_MSC_VER)
|
|
# define U_EXPORT __declspec(dllexport)
|
|
#else
|
|
# define U_EXPORT
|
|
#endif
|
|
|
|
/* U_CALLCONV is releated 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)
|
|
/* Windows needs to export/import data. */
|
|
# define U_IMPORT __declspec(dllimport)
|
|
#else
|
|
# define U_IMPORT
|
|
#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.
|
|
* @stable ICU 2.0
|
|
*/
|
|
#if U_PLATFORM == U_PF_OS390 && defined(__cplusplus)
|
|
# define U_CALLCONV __cdecl
|
|
#else
|
|
# define U_CALLCONV U_EXPORT2
|
|
#endif
|
|
|
|
/* @} */
|
|
|
|
#endif
|