ICU 63.1: platform.h Source File

00001 // © 2016 and later: Unicode, Inc. and others.
00002 // License & terms of use: http://www.unicode.org/copyright.html
00003 /*
00004 ******************************************************************************
00005 *
00006 *   Copyright (C) 1997-2016, International Business Machines
00007 *   Corporation and others.  All Rights Reserved.
00008 *
00009 ******************************************************************************
00010 *
00011 *  FILE NAME : platform.h
00012 *
00013 *   Date        Name        Description
00014 *   05/13/98    nos         Creation (content moved here from ptypes.h).
00015 *   03/02/99    stephen     Added AS400 support.
00016 *   03/30/99    stephen     Added Linux support.
00017 *   04/13/99    stephen     Reworked for autoconf.
00018 ******************************************************************************
00019 */
00020 
00021 #ifndef _PLATFORM_H
00022 #define _PLATFORM_H
00023 
00024 #include "unicode/uconfig.h"
00025 #include "unicode/uvernum.h"
00026 
00059 #ifdef U_IN_DOXYGEN
00060 /*
00061  * Problem: "platform.h:335: warning: documentation for unknown define U_HAVE_STD_STRING found." means that U_HAVE_STD_STRING is not documented.
00062  * 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.
00063  */
00064 
00065 /* None for now. */
00066 #endif
00067 
00089 #define U_PF_UNKNOWN 0
00090 
00091 #define U_PF_WINDOWS 1000
00092 
00093 #define U_PF_MINGW 1800
00094 
00099 #define U_PF_CYGWIN 1900
00100 /* Reserve 2000 for U_PF_UNIX? */
00102 #define U_PF_HPUX 2100
00103 
00104 #define U_PF_SOLARIS 2600
00105 
00106 #define U_PF_BSD 3000
00107 
00108 #define U_PF_AIX 3100
00109 
00110 #define U_PF_IRIX 3200
00111 
00119 #define U_PF_DARWIN 3500
00120 
00121 #define U_PF_IPHONE 3550
00122 
00123 #define U_PF_QNX 3700
00124 
00125 #define U_PF_LINUX 4000
00126 
00132 #define U_PF_BROWSER_NATIVE_CLIENT 4020
00133 
00134 #define U_PF_ANDROID 4050
00135 
00136 #define U_PF_FUCHSIA 4100
00137 /* Maximum value for Linux-based platform is 4499 */
00139 #define U_PF_OS390 9000
00140 
00141 #define U_PF_OS400 9400
00142 
00143 #ifdef U_PLATFORM
00144     /* Use the predefined value. */
00145 #elif defined(__MINGW32__)
00146 #   define U_PLATFORM U_PF_MINGW
00147 #elif defined(__CYGWIN__)
00148 #   define U_PLATFORM U_PF_CYGWIN
00149 #elif defined(WIN32) || defined(_WIN32) || defined(WIN64) || defined(_WIN64)
00150 #   define U_PLATFORM U_PF_WINDOWS
00151 #elif defined(__ANDROID__)
00152 #   define U_PLATFORM U_PF_ANDROID
00153     /* Android wchar_t support depends on the API level. */
00154 #   include <android/api-level.h>
00155 #elif defined(__pnacl__) || defined(__native_client__)
00156 #   define U_PLATFORM U_PF_BROWSER_NATIVE_CLIENT
00157 #elif defined(__Fuchsia__)
00158 #   define U_PLATFORM U_PF_FUCHSIA
00159 #elif defined(linux) || defined(__linux__) || defined(__linux)
00160 #   define U_PLATFORM U_PF_LINUX
00161 #elif defined(__APPLE__) && defined(__MACH__)
00162 #   include <TargetConditionals.h>
00163 #   if defined(TARGET_OS_IPHONE) && TARGET_OS_IPHONE  /* variant of TARGET_OS_MAC */
00164 #       define U_PLATFORM U_PF_IPHONE
00165 #   else
00166 #       define U_PLATFORM U_PF_DARWIN
00167 #   endif
00168 #elif defined(BSD) || defined(__FreeBSD__) || defined(__FreeBSD_kernel__) || defined(__NetBSD__) || defined(__OpenBSD__) || defined(__MirBSD__)
00169 #   if defined(__FreeBSD__)
00170 #       include <sys/endian.h>
00171 #   endif
00172 #   define U_PLATFORM U_PF_BSD
00173 #elif defined(sun) || defined(__sun)
00174     /* Check defined(__SVR4) || defined(__svr4__) to distinguish Solaris from SunOS? */
00175 #   define U_PLATFORM U_PF_SOLARIS
00176 #   if defined(__GNUC__)
00177         /* Solaris/GCC needs this header file to get the proper endianness. Normally, this
00178          * header file is included with stddef.h but on Solairs/GCC, the GCC version of stddef.h
00179          *  is included which does not include this header file.
00180          */
00181 #       include <sys/isa_defs.h>
00182 #   endif
00183 #elif defined(_AIX) || defined(__TOS_AIX__)
00184 #   define U_PLATFORM U_PF_AIX
00185 #elif defined(_hpux) || defined(hpux) || defined(__hpux)
00186 #   define U_PLATFORM U_PF_HPUX
00187 #elif defined(sgi) || defined(__sgi)
00188 #   define U_PLATFORM U_PF_IRIX
00189 #elif defined(__QNX__) || defined(__QNXNTO__)
00190 #   define U_PLATFORM U_PF_QNX
00191 #elif defined(__TOS_MVS__)
00192 #   define U_PLATFORM U_PF_OS390
00193 #elif defined(__OS400__) || defined(__TOS_OS400__)
00194 #   define U_PLATFORM U_PF_OS400
00195 #else
00196 #   define U_PLATFORM U_PF_UNKNOWN
00197 #endif
00198 
00205 /* Commented out because this is already set in mh-cygwin-msvc
00206 #if U_PLATFORM == U_PF_CYGWIN && defined(_MSC_VER)
00207 #   define CYGWINMSVC
00208 #endif
00209 */
00210 #ifdef U_IN_DOXYGEN
00211 #   define CYGWINMSVC
00212 #endif
00213 
00220 #ifdef U_PLATFORM_USES_ONLY_WIN32_API
00221     /* Use the predefined value. */
00222 #elif (U_PF_WINDOWS <= U_PLATFORM && U_PLATFORM <= U_PF_MINGW) || defined(CYGWINMSVC)
00223 #   define U_PLATFORM_USES_ONLY_WIN32_API 1
00224 #else
00225     /* Cygwin implements POSIX. */
00226 #   define U_PLATFORM_USES_ONLY_WIN32_API 0
00227 #endif
00228 
00235 #ifdef U_PLATFORM_HAS_WIN32_API
00236     /* Use the predefined value. */
00237 #elif U_PF_WINDOWS <= U_PLATFORM && U_PLATFORM <= U_PF_CYGWIN
00238 #   define U_PLATFORM_HAS_WIN32_API 1
00239 #else
00240 #   define U_PLATFORM_HAS_WIN32_API 0
00241 #endif
00242 
00249 #ifdef U_PLATFORM_HAS_WINUWP_API
00250     /* Use the predefined value. */
00251 #else
00252 #   define U_PLATFORM_HAS_WINUWP_API 0
00253 #endif
00254 
00261 #ifdef U_PLATFORM_IMPLEMENTS_POSIX
00262     /* Use the predefined value. */
00263 #elif U_PLATFORM_USES_ONLY_WIN32_API
00264 #   define U_PLATFORM_IMPLEMENTS_POSIX 0
00265 #else
00266 #   define U_PLATFORM_IMPLEMENTS_POSIX 1
00267 #endif
00268 
00274 #ifdef U_PLATFORM_IS_LINUX_BASED
00275     /* Use the predefined value. */
00276 #elif U_PF_LINUX <= U_PLATFORM && U_PLATFORM <= 4499
00277 #   define U_PLATFORM_IS_LINUX_BASED 1
00278 #else
00279 #   define U_PLATFORM_IS_LINUX_BASED 0
00280 #endif
00281 
00287 #ifdef U_PLATFORM_IS_DARWIN_BASED
00288     /* Use the predefined value. */
00289 #elif U_PF_DARWIN <= U_PLATFORM && U_PLATFORM <= U_PF_IPHONE
00290 #   define U_PLATFORM_IS_DARWIN_BASED 1
00291 #else
00292 #   define U_PLATFORM_IS_DARWIN_BASED 0
00293 #endif
00294 
00302 #ifdef U_HAVE_STDINT_H
00303     /* Use the predefined value. */
00304 #elif U_PLATFORM_USES_ONLY_WIN32_API
00305 #   if defined(__BORLANDC__) || U_PLATFORM == U_PF_MINGW || (defined(_MSC_VER) && _MSC_VER>=1600)
00306         /* Windows Visual Studio 9 and below do not have stdint.h & inttypes.h, but VS 2010 adds them. */
00307 #       define U_HAVE_STDINT_H 1
00308 #   else
00309 #       define U_HAVE_STDINT_H 0
00310 #   endif
00311 #elif U_PLATFORM == U_PF_SOLARIS
00312     /* Solaris has inttypes.h but not stdint.h. */
00313 #   define U_HAVE_STDINT_H 0
00314 #elif U_PLATFORM == U_PF_AIX && !defined(_AIX51) && defined(_POWER)
00315     /* PPC AIX <= 4.3 has inttypes.h but not stdint.h. */
00316 #   define U_HAVE_STDINT_H 0
00317 #else
00318 #   define U_HAVE_STDINT_H 1
00319 #endif
00320 
00327 #ifdef U_HAVE_INTTYPES_H
00328     /* Use the predefined value. */
00329 #elif U_PLATFORM == U_PF_SOLARIS
00330     /* Solaris has inttypes.h but not stdint.h. */
00331 #   define U_HAVE_INTTYPES_H 1
00332 #elif U_PLATFORM == U_PF_AIX && !defined(_AIX51) && defined(_POWER)
00333     /* PPC AIX <= 4.3 has inttypes.h but not stdint.h. */
00334 #   define U_HAVE_INTTYPES_H 1
00335 #else
00336     /* Most platforms have both inttypes.h and stdint.h, or neither. */
00337 #   define U_HAVE_INTTYPES_H U_HAVE_STDINT_H
00338 #endif
00339 
00340 /*===========================================================================*/
00342 /*===========================================================================*/
00343 
00354 #ifdef __GNUC__
00355 #   define U_GCC_MAJOR_MINOR (__GNUC__ * 100 + __GNUC_MINOR__)
00356 #else
00357 #   define U_GCC_MAJOR_MINOR 0
00358 #endif
00359 
00365 #ifdef U_IS_BIG_ENDIAN
00366     /* Use the predefined value. */
00367 #elif defined(BYTE_ORDER) && defined(BIG_ENDIAN)
00368 #   define U_IS_BIG_ENDIAN (BYTE_ORDER == BIG_ENDIAN)
00369 #elif defined(__BYTE_ORDER__) && defined(__ORDER_BIG_ENDIAN__)
00370     /* gcc */
00371 #   define U_IS_BIG_ENDIAN (__BYTE_ORDER__ == __ORDER_BIG_ENDIAN__)
00372 #elif defined(__BIG_ENDIAN__) || defined(_BIG_ENDIAN)
00373 #   define U_IS_BIG_ENDIAN 1
00374 #elif defined(__LITTLE_ENDIAN__) || defined(_LITTLE_ENDIAN)
00375 #   define U_IS_BIG_ENDIAN 0
00376 #elif U_PLATFORM == U_PF_OS390 || U_PLATFORM == U_PF_OS400 || defined(__s390__) || defined(__s390x__)
00377     /* These platforms do not appear to predefine any endianness macros. */
00378 #   define U_IS_BIG_ENDIAN 1
00379 #elif defined(_PA_RISC1_0) || defined(_PA_RISC1_1) || defined(_PA_RISC2_0)
00380     /* HPPA do not appear to predefine any endianness macros. */
00381 #   define U_IS_BIG_ENDIAN 1
00382 #elif defined(sparc) || defined(__sparc) || defined(__sparc__)
00383     /* Some sparc based systems (e.g. Linux) do not predefine any endianness macros. */
00384 #   define U_IS_BIG_ENDIAN 1
00385 #else
00386 #   define U_IS_BIG_ENDIAN 0
00387 #endif
00388 
00394 #ifdef U_HAVE_PLACEMENT_NEW
00395     /* Use the predefined value. */
00396 #elif defined(__BORLANDC__)
00397 #   define U_HAVE_PLACEMENT_NEW 0
00398 #else
00399 #   define U_HAVE_PLACEMENT_NEW 1
00400 #endif
00401 
00408 #ifdef U_HAVE_DEBUG_LOCATION_NEW
00409     /* Use the predefined value. */
00410 #elif defined(_MSC_VER)
00411 #   define U_HAVE_DEBUG_LOCATION_NEW 1
00412 #else
00413 #   define U_HAVE_DEBUG_LOCATION_NEW 0
00414 #endif
00415 
00416 /* Compatibility with compilers other than clang: http://clang.llvm.org/docs/LanguageExtensions.html */
00417 #ifndef __has_attribute
00418 #    define __has_attribute(x) 0
00419 #endif
00420 #ifndef __has_cpp_attribute
00421 #    define __has_cpp_attribute(x) 0
00422 #endif
00423 #ifndef __has_declspec_attribute
00424 #    define __has_declspec_attribute(x) 0
00425 #endif
00426 #ifndef __has_builtin
00427 #    define __has_builtin(x) 0
00428 #endif
00429 #ifndef __has_feature
00430 #    define __has_feature(x) 0
00431 #endif
00432 #ifndef __has_extension
00433 #    define __has_extension(x) 0
00434 #endif
00435 #ifndef __has_warning
00436 #    define __has_warning(x) 0
00437 #endif
00438 
00444 #if defined(__GNUC__) && __GNUC__>=3
00445 #    define U_MALLOC_ATTR __attribute__ ((__malloc__))
00446 #else
00447 #    define U_MALLOC_ATTR
00448 #endif
00449 
00455 #if (defined(__GNUC__) && (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 3))) || __has_attribute(alloc_size)
00456 #   define U_ALLOC_SIZE_ATTR(X) __attribute__ ((alloc_size(X)))
00457 #   define U_ALLOC_SIZE_ATTR2(X,Y) __attribute__ ((alloc_size(X,Y)))
00458 #else
00459 #   define U_ALLOC_SIZE_ATTR(X)
00460 #   define U_ALLOC_SIZE_ATTR2(X,Y)
00461 #endif
00462 
00469 #ifdef U_CPLUSPLUS_VERSION
00470 #   if U_CPLUSPLUS_VERSION != 0 && !defined(__cplusplus)
00471 #       undef U_CPLUSPLUS_VERSION
00472 #       define U_CPLUSPLUS_VERSION 0
00473 #   endif
00474     /* Otherwise use the predefined value. */
00475 #elif !defined(__cplusplus)
00476 #   define U_CPLUSPLUS_VERSION 0
00477 #elif __cplusplus >= 201402L || (defined(_MSVC_LANG) && _MSVC_LANG >= 201402L)
00478 #   define U_CPLUSPLUS_VERSION 14
00479 #elif __cplusplus >= 201103L || (defined(_MSVC_LANG) && _MSVC_LANG >= 201103L)
00480 #   define U_CPLUSPLUS_VERSION 11
00481 #else
00482     // C++98 or C++03
00483 #   define U_CPLUSPLUS_VERSION 1
00484 #endif
00485 
00486 #if (U_PLATFORM == U_PF_AIX || U_PLATFORM == U_PF_OS390) && defined(__cplusplus) &&(U_CPLUSPLUS_VERSION < 11)
00487 // add in std::nullptr_t
00488 namespace std {
00489   typedef decltype(nullptr) nullptr_t;
00490 };
00491 #endif
00492 
00500 #ifdef U_NOEXCEPT
00501     /* Use the predefined value. */
00502 #else
00503 #   define U_NOEXCEPT noexcept
00504 #endif
00505 
00512 #ifndef __cplusplus
00513     // Not for C.
00514 #elif defined(U_FALLTHROUGH)
00515     // Use the predefined value.
00516 #elif defined(__clang__)
00517     // Test for compiler vs. feature separately.
00518     // Other compilers might choke on the feature test.
00519 #   if __has_cpp_attribute(clang::fallthrough) || \
00520             (__has_feature(cxx_attributes) && __has_warning("-Wimplicit-fallthrough"))
00521 #       define U_FALLTHROUGH [[clang::fallthrough]]
00522 #   endif
00523 #elif defined(__GNUC__) && (__GNUC__ >= 7)
00524 #   define U_FALLTHROUGH __attribute__((fallthrough))
00525 #endif
00526 
00527 #ifndef U_FALLTHROUGH
00528 #   define U_FALLTHROUGH
00529 #endif
00530 
00533 /*===========================================================================*/
00535 /*===========================================================================*/
00536 
00541 #define U_ASCII_FAMILY 0
00542 
00547 #define U_EBCDIC_FAMILY 1
00548 
00591 #ifdef U_CHARSET_FAMILY
00592     /* Use the predefined value. */
00593 #elif U_PLATFORM == U_PF_OS390 && (!defined(__CHARSET_LIB) || !__CHARSET_LIB)
00594 #   define U_CHARSET_FAMILY U_EBCDIC_FAMILY
00595 #elif U_PLATFORM == U_PF_OS400 && !defined(__UTF32__)
00596 #   define U_CHARSET_FAMILY U_EBCDIC_FAMILY
00597 #else
00598 #   define U_CHARSET_FAMILY U_ASCII_FAMILY
00599 #endif
00600 
00621 #ifdef U_CHARSET_IS_UTF8
00622     /* Use the predefined value. */
00623 #elif U_PLATFORM_IS_LINUX_BASED || U_PLATFORM_IS_DARWIN_BASED
00624 #   define U_CHARSET_IS_UTF8 1
00625 #else
00626 #   define U_CHARSET_IS_UTF8 0
00627 #endif
00628 
00631 /*===========================================================================*/
00633 /*===========================================================================*/
00634 
00641 #ifdef U_HAVE_WCHAR_H
00642     /* Use the predefined value. */
00643 #elif U_PLATFORM == U_PF_ANDROID && __ANDROID_API__ < 9
00644     /*
00645      * Android before Gingerbread (Android 2.3, API level 9) did not support wchar_t.
00646      * The type and header existed, but the library functions did not work as expected.
00647      * The size of wchar_t was 1 but L"xyz" string literals had 32-bit units anyway.
00648      */
00649 #   define U_HAVE_WCHAR_H 0
00650 #else
00651 #   define U_HAVE_WCHAR_H 1
00652 #endif
00653 
00660 #ifdef U_SIZEOF_WCHAR_T
00661     /* Use the predefined value. */
00662 #elif (U_PLATFORM == U_PF_ANDROID && __ANDROID_API__ < 9)
00663     /*
00664      * Classic Mac OS and Mac OS X before 10.3 (Panther) did not support wchar_t or wstring.
00665      * Newer Mac OS X has size 4.
00666      */
00667 #   define U_SIZEOF_WCHAR_T 1
00668 #elif U_PLATFORM_HAS_WIN32_API || U_PLATFORM == U_PF_CYGWIN
00669 #   define U_SIZEOF_WCHAR_T 2
00670 #elif U_PLATFORM == U_PF_AIX
00671     /*
00672      * AIX 6.1 information, section "Wide character data representation":
00673      * "... the wchar_t datatype is 32-bit in the 64-bit environment and
00674      * 16-bit in the 32-bit environment."
00675      * and
00676      * "All locales use Unicode for their wide character code values (process code),
00677      * except the IBM-eucTW codeset."
00678      */
00679 #   ifdef __64BIT__
00680 #       define U_SIZEOF_WCHAR_T 4
00681 #   else
00682 #       define U_SIZEOF_WCHAR_T 2
00683 #   endif
00684 #elif U_PLATFORM == U_PF_OS390
00685     /*
00686      * z/OS V1R11 information center, section "LP64 | ILP32":
00687      * "In 31-bit mode, the size of long and pointers is 4 bytes and the size of wchar_t is 2 bytes.
00688      * Under LP64, the size of long and pointer is 8 bytes and the size of wchar_t is 4 bytes."
00689      */
00690 #   ifdef _LP64
00691 #       define U_SIZEOF_WCHAR_T 4
00692 #   else
00693 #       define U_SIZEOF_WCHAR_T 2
00694 #   endif
00695 #elif U_PLATFORM == U_PF_OS400
00696 #   if defined(__UTF32__)
00697         /*
00698          * LOCALETYPE(*LOCALEUTF) is specified.
00699          * Wide-character strings are in UTF-32,
00700          * narrow-character strings are in UTF-8.
00701          */
00702 #       define U_SIZEOF_WCHAR_T 4
00703 #   elif defined(__UCS2__)
00704         /*
00705          * LOCALETYPE(*LOCALEUCS2) is specified.
00706          * Wide-character strings are in UCS-2,
00707          * narrow-character strings are in EBCDIC.
00708          */
00709 #       define U_SIZEOF_WCHAR_T 2
00710 #else
00711         /*
00712          * LOCALETYPE(*CLD) or LOCALETYPE(*LOCALE) is specified.
00713          * Wide-character strings are in 16-bit EBCDIC,
00714          * narrow-character strings are in EBCDIC.
00715          */
00716 #       define U_SIZEOF_WCHAR_T 2
00717 #   endif
00718 #else
00719 #   define U_SIZEOF_WCHAR_T 4
00720 #endif
00721 
00722 #ifndef U_HAVE_WCSCPY
00723 #define U_HAVE_WCSCPY U_HAVE_WCHAR_H
00724 #endif
00725 
00736 #ifdef U_HAVE_CHAR16_T
00737     /* Use the predefined value. */
00738 #else
00739     /*
00740      * Notes:
00741      * Visual Studio 2010 (_MSC_VER==1600) defines char16_t as a typedef
00742      * and does not support u"abc" string literals.
00743      * Visual Studio 2015 (_MSC_VER>=1900) and above adds support for
00744      * both char16_t and u"abc" string literals.
00745      * gcc 4.4 defines the __CHAR16_TYPE__ macro to a usable type but
00746      * does not support u"abc" string literals.
00747      * C++11 and C11 require support for UTF-16 literals
00748      * TODO: Fix for plain C. Doesn't work on Mac.
00749      */
00750 #   if U_CPLUSPLUS_VERSION >= 11 || (defined(__STDC_VERSION__) && __STDC_VERSION__ >= 201112L)
00751 #       define U_HAVE_CHAR16_T 1
00752 #   else
00753 #       define U_HAVE_CHAR16_T 0
00754 #   endif
00755 #endif
00756 
00764 #ifdef U_DECLARE_UTF16
00765     /* Use the predefined value. */
00766 #elif U_HAVE_CHAR16_T \
00767     || (defined(__xlC__) && defined(__IBM_UTF_LITERAL) && U_SIZEOF_WCHAR_T != 2) \
00768     || (defined(__HP_aCC) && __HP_aCC >= 035000) \
00769     || (defined(__HP_cc) && __HP_cc >= 111106) \
00770     || (defined(U_IN_DOXYGEN))
00771 #   define U_DECLARE_UTF16(string) u ## string
00772 #elif U_SIZEOF_WCHAR_T == 2 \
00773     && (U_CHARSET_FAMILY == 0 || (U_PF_OS390 <= U_PLATFORM && U_PLATFORM <= U_PF_OS400 && defined(__UCS2__)))
00774 #   define U_DECLARE_UTF16(string) L ## string
00775 #else
00776     /* Leave U_DECLARE_UTF16 undefined. See unistr.h. */
00777 #endif
00778 
00781 /*===========================================================================*/
00783 /*===========================================================================*/
00784 
00785 #ifdef U_EXPORT
00786     /* Use the predefined value. */
00787 #elif defined(U_STATIC_IMPLEMENTATION)
00788 #   define U_EXPORT
00789 #elif defined(_MSC_VER) || (__has_declspec_attribute(dllexport) && __has_declspec_attribute(dllimport))
00790 #   define U_EXPORT __declspec(dllexport)
00791 #elif defined(__GNUC__)
00792 #   define U_EXPORT __attribute__((visibility("default")))
00793 #elif (defined(__SUNPRO_CC) && __SUNPRO_CC >= 0x550) \
00794    || (defined(__SUNPRO_C) && __SUNPRO_C >= 0x550) 
00795 #   define U_EXPORT __global
00796 /*#elif defined(__HP_aCC) || defined(__HP_cc)
00797 #   define U_EXPORT __declspec(dllexport)*/
00798 #else
00799 #   define U_EXPORT
00800 #endif
00801 
00802 /* U_CALLCONV is releated to U_EXPORT2 */
00803 #ifdef U_EXPORT2
00804     /* Use the predefined value. */
00805 #elif defined(_MSC_VER)
00806 #   define U_EXPORT2 __cdecl
00807 #else
00808 #   define U_EXPORT2
00809 #endif
00810 
00811 #ifdef U_IMPORT
00812     /* Use the predefined value. */
00813 #elif defined(_MSC_VER) || (__has_declspec_attribute(dllexport) && __has_declspec_attribute(dllimport))
00814     /* Windows needs to export/import data. */
00815 #   define U_IMPORT __declspec(dllimport)
00816 #else
00817 #   define U_IMPORT 
00818 #endif
00819 
00837 #if U_PLATFORM == U_PF_OS390 && defined(__cplusplus)
00838 #    define U_CALLCONV __cdecl
00839 #else
00840 #    define U_CALLCONV U_EXPORT2
00841 #endif
00842 
00848 #if U_PLATFORM == U_PF_OS390 && defined(__cplusplus)
00849 #    define U_CALLCONV_FPTR U_CALLCONV
00850 #else
00851 #    define U_CALLCONV_FPTR
00852 #endif
00853 /* @} */
00854 
00855 #endif