Check in the pristine copy of ICU 51.2

icu51/source/common/unicode/platform.h

Index: icu51/source/common/unicode/platform.h
===================================================================
--- icu51/source/common/unicode/platform.h	(revision 0)
+++ icu51/source/common/unicode/platform.h	(revision 0)
@@ -0,0 +1,757 @@
+/*
+******************************************************************************
+*
+*   Copyright (C) 1997-2012, 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 <code>#define</code> 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
+/** Android is based on Linux. @internal */
+#define U_PF_ANDROID 4050
+/** "Classic" Mac OS (1984-2001) @internal */
+#define U_PF_CLASSIC_MACOS 8000
+/** 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(linux) || defined(__linux__) || defined(__linux)
+#   define U_PLATFORM U_PF_LINUX
+#elif defined(BSD) || defined(__FreeBSD__) || defined(__FreeBSD_kernel__) || defined(__NetBSD__) || defined(__OpenBSD__) || defined(__MirBSD__)
+#   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(__APPLE__) && defined(__MACH__)
+#   include <TargetConditionals.h>
+#   if defined(TARGET_OS_IPHONE) && TARGET_OS_IPHONE  /* variant of TARGET_OS_MAC */
+#       define U_PLATFORM U_PF_IPHONE
+#   else
+#       define U_PLATFORM U_PF_DARWIN
+#   endif
+#elif defined(macintosh)
+#   define U_PLATFORM U_PF_CLASSIC_MACOS
+#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
+#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
+*/
+
+/**
+ * \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_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 || U_PLATFORM == U_PF_CLASSIC_MACOS
+#   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 <= U_PF_ANDROID
+#   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
+
+/**
+ * \def U_IOSTREAM_SOURCE
+ * Defines what support for C++ streams is available.
+ *
+ * If U_IOSTREAM_SOURCE is set to 199711, then &lt;iostream&gt; is available
+ * (the ISO/IEC C++ FDIS was published in November 1997), and then
+ * one should qualify streams using the std namespace in ICU header
+ * files.
+ * Starting with ICU 49, this is the only supported version.
+ *
+ * If U_IOSTREAM_SOURCE is set to 198506, then &lt;iostream.h&gt; is
+ * available instead (in June 1985 Stroustrup published
+ * "An Extensible I/O Facility for C++" at the summer USENIX conference).
+ * Starting with ICU 49, this version is not supported any more.
+ *
+ * If U_IOSTREAM_SOURCE is 0 (or any value less than 199711),
+ * then C++ streams are not available and
+ * support for them will be silently suppressed in ICU.
+ *
+ * @internal
+ */
+#ifndef U_IOSTREAM_SOURCE
+#define U_IOSTREAM_SOURCE 199711
+#endif
+
+/**
+ * \def U_HAVE_STD_STRING
+ * Defines whether the standard C++ (STL) &lt;string&gt; header is available.
+ * @internal
+ */
+#ifdef U_HAVE_STD_STRING
+    /* Use the predefined value. */
+#elif U_PLATFORM == U_PF_ANDROID
+#   define U_HAVE_STD_STRING 0
+#else
+#   define U_HAVE_STD_STRING 1
+#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 non clang compilers */
+#ifndef __has_attribute
+#    define __has_attribute(x) 0
+#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))) || __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
+
+/** @} */
+
+/*===========================================================================*/
+/** @{ 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  "  %  &amp;  '  (  )  *  +  ,  -  .  /  :  ;  <  =  >  ?  _
+ * \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) || U_PLATFORM == U_PF_CLASSIC_MACOS
+    /*
+     * 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 (defined(__cplusplus) && __cplusplus >= 201103L) || (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
Property changes on: icu51/source/common/unicode/platform.h
___________________________________________________________________
Added: svn:eol-style
   + LF