icuSources/common/putilimp.h

   1 // © 2016 and later: Unicode, Inc. and others.
   2 // License & terms of use: http://www.unicode.org/copyright.html
   3 /*
   4 ******************************************************************************
   5 *
   6 *   Copyright (C) 1997-2016, International Business Machines
   7 *   Corporation and others.  All Rights Reserved.
   8 *
   9 ******************************************************************************
  10 *
  11 *  FILE NAME : putilimp.h
  12 *
  13 *   Date        Name        Description
  14 *   10/17/04    grhoten     Move internal functions from putil.h to this file.
  15 ******************************************************************************
  16 */
  17
  18 #ifndef PUTILIMP_H
  19 #define PUTILIMP_H
  20
  21 #include "unicode/utypes.h"
  22 #include "unicode/putil.h"
  23
  24 /**
  25  * \def U_SIGNED_RIGHT_SHIFT_IS_ARITHMETIC
  26  * Nearly all CPUs and compilers implement a right-shift of a signed integer
  27  * as an Arithmetic Shift Right which copies the sign bit (the Most Significant Bit (MSB))
  28  * into the vacated bits (sign extension).
  29  * For example, (int32_t)0xfff5fff3>>4 becomes 0xffff5fff and -1>>1=-1.
  30  *
  31  * This can be useful for storing a signed value in the upper bits
  32  * and another bit field in the lower bits.
  33  * The signed value can be retrieved by simple right-shifting.
  34  *
  35  * This is consistent with the Java language.
  36  *
  37  * However, the C standard allows compilers to implement a right-shift of a signed integer
  38  * as a Logical Shift Right which copies a 0 into the vacated bits.
  39  * For example, (int32_t)0xfff5fff3>>4 becomes 0x0fff5fff and -1>>1=0x7fffffff.
  40  *
  41  * Code that depends on the natural behavior should be guarded with this macro,
  42  * with an alternate path for unusual platforms.
  43  * @internal
  44  */
  45 #ifdef U_SIGNED_RIGHT_SHIFT_IS_ARITHMETIC
  46     /* Use the predefined value. */
  47 #else
  48     /*
  49      * Nearly all CPUs & compilers implement a right-shift of a signed integer
  50      * as an Arithmetic Shift Right (with sign extension).
  51      */
  52 #   define U_SIGNED_RIGHT_SHIFT_IS_ARITHMETIC 1
  53 #endif
  54
  55 /** Define this to 1 if your platform supports IEEE 754 floating point,
  56    to 0 if it does not. */
  57 #ifndef IEEE_754
  58 #   define IEEE_754 1
  59 #endif
  60
  61 /**
  62  * uintptr_t is an optional part of the standard definitions in stdint.h.
  63  * The opengroup.org documentation for stdint.h says
  64  * "On XSI-conformant systems, the intptr_t and uintptr_t types are required;
  65  * otherwise, they are optional."
  66  * We assume that when uintptr_t is defined, UINTPTR_MAX is defined as well.
  67  *
  68  * Do not use ptrdiff_t since it is signed. size_t is unsigned.
  69  */
  70 /* TODO: This check fails on some z environments. Filed a ticket #9357 for this. */
  71 #if !defined(__intptr_t_defined) && !defined(UINTPTR_MAX) && (U_PLATFORM != U_PF_OS390)
  72 typedef size_t uintptr_t;
  73 #endif
  74
  75 /**
  76  * \def U_HAVE_MSVC_2003_OR_EARLIER
  77  * Flag for workaround of MSVC 2003 optimization bugs
  78  * @internal
  79  */
  80 #if !defined(U_HAVE_MSVC_2003_OR_EARLIER) && defined(_MSC_VER) && (_MSC_VER < 1400)
  81 #define U_HAVE_MSVC_2003_OR_EARLIER
  82 #endif
  83
  84 /*===========================================================================*/
  85 /** @{ Information about POSIX support                                       */
  86 /*===========================================================================*/
  87
  88 #ifdef U_HAVE_NL_LANGINFO_CODESET
  89     /* Use the predefined value. */
  90 #elif U_PLATFORM_USES_ONLY_WIN32_API || U_PLATFORM == U_PF_ANDROID || U_PLATFORM == U_PF_QNX
  91 #   define U_HAVE_NL_LANGINFO_CODESET 0
  92 #else
  93 #   define U_HAVE_NL_LANGINFO_CODESET 1
  94 #endif
  95
  96 #ifdef U_NL_LANGINFO_CODESET
  97     /* Use the predefined value. */
  98 #elif !U_HAVE_NL_LANGINFO_CODESET
  99 #   define U_NL_LANGINFO_CODESET -1
 100 #elif U_PLATFORM == U_PF_OS400
 101    /* not defined */
 102 #else
 103 #   define U_NL_LANGINFO_CODESET CODESET
 104 #endif
 105
 106 #ifdef U_TZSET
 107     /* Use the predefined value. */
 108 #elif U_PLATFORM_USES_ONLY_WIN32_API
 109     // UWP doesn't support tzset or environment variables for tz
 110 #if U_PLATFORM_HAS_WINUWP_API == 0
 111 #   define U_TZSET _tzset
 112 #endif
 113 #elif U_PLATFORM == U_PF_OS400
 114    /* not defined */
 115 #else
 116 #   define U_TZSET tzset
 117 #endif
 118
 119 #if defined(U_TIMEZONE) || defined(U_HAVE_TIMEZONE)
 120     /* Use the predefined value. */
 121 #elif U_PLATFORM == U_PF_ANDROID
 122 #   define U_TIMEZONE timezone
 123 #elif U_PLATFORM_IS_LINUX_BASED
 124 #   if defined(__UCLIBC__)
 125        /* uClibc does not have __timezone or _timezone. */
 126 #   elif defined(_NEWLIB_VERSION)
 127 #      define U_TIMEZONE      _timezone
 128 #   elif defined(__GLIBC__)
 129        /* glibc */
 130 #      define U_TIMEZONE      __timezone
 131 #   endif
 132 #elif U_PLATFORM_USES_ONLY_WIN32_API
 133 #   define U_TIMEZONE _timezone
 134 #elif U_PLATFORM == U_PF_BSD && !defined(__NetBSD__)
 135    /* not defined */
 136 #elif U_PLATFORM == U_PF_OS400
 137    /* not defined */
 138 #elif U_PLATFORM == U_PF_IPHONE
 139    /* not defined */
 140 #else
 141 #   define U_TIMEZONE timezone
 142 #endif
 143
 144 #ifdef U_TZNAME
 145     /* Use the predefined value. */
 146 #elif U_PLATFORM_USES_ONLY_WIN32_API
 147     /* not usable on all windows platforms */
 148 #if U_PLATFORM_HAS_WINUWP_API == 0
 149 #   define U_TZNAME _tzname
 150 #endif
 151 #elif U_PLATFORM == U_PF_OS400
 152    /* not defined */
 153 #else
 154 #   define U_TZNAME tzname
 155 #endif
 156
 157 #ifdef U_HAVE_MMAP
 158     /* Use the predefined value. */
 159 #elif U_PLATFORM_USES_ONLY_WIN32_API
 160 #   define U_HAVE_MMAP 0
 161 #else
 162 #   define U_HAVE_MMAP 1
 163 #endif
 164
 165 #ifdef U_HAVE_POPEN
 166     /* Use the predefined value. */
 167 #elif U_PLATFORM_USES_ONLY_WIN32_API
 168 #   define U_HAVE_POPEN 0
 169 #elif U_PLATFORM == U_PF_OS400
 170 #   define U_HAVE_POPEN 0
 171 #else
 172 #   define U_HAVE_POPEN 1
 173 #endif
 174
 175 /**
 176  * \def U_HAVE_DIRENT_H
 177  * Defines whether dirent.h is available.
 178  * @internal
 179  */
 180 #ifdef U_HAVE_DIRENT_H
 181     /* Use the predefined value. */
 182 #elif U_PLATFORM_USES_ONLY_WIN32_API
 183 #   define U_HAVE_DIRENT_H 0
 184 #else
 185 #   define U_HAVE_DIRENT_H 1
 186 #endif
 187
 188 /** @} */
 189
 190 /*===========================================================================*/
 191 /** @{ GCC built in functions for atomic memory operations                   */
 192 /*===========================================================================*/
 193
 194 /**
 195  * \def U_HAVE_GCC_ATOMICS
 196  * @internal
 197  */
 198 #ifdef U_HAVE_GCC_ATOMICS
 199     /* Use the predefined value. */
 200 #elif U_PLATFORM == U_PF_MINGW
 201     #define U_HAVE_GCC_ATOMICS 0
 202 #elif U_GCC_MAJOR_MINOR >= 404 || defined(__clang__)
 203     /* TODO: Intel icc and IBM xlc on AIX also support gcc atomics.  (Intel originated them.)
 204      *       Add them for these compilers.
 205      * Note: Clang sets __GNUC__ defines for version 4.2, so misses the 4.4 test here.
 206      */
 207 #   define U_HAVE_GCC_ATOMICS 1
 208 #else
 209 #   define U_HAVE_GCC_ATOMICS 0
 210 #endif
 211
 212 /** @} */
 213
 214 /**
 215  * \def U_HAVE_STD_ATOMICS
 216  * Defines whether the standard C++11 <atomic> is available.
 217  * ICU will use this when avialable,
 218  * otherwise will fall back to compiler or platform specific alternatives.
 219  * @internal
 220  */
 221 #ifdef U_HAVE_STD_ATOMICS
 222     /* Use the predefined value. */
 223 #elif U_CPLUSPLUS_VERSION < 11
 224     /* Not C++11, disable use of atomics */
 225 #   define U_HAVE_STD_ATOMICS 0
 226 #elif __clang__ && __clang_major__==3 && __clang_minor__<=1
 227     /* Clang 3.1, has atomic variable initializer bug. */
 228 #   define U_HAVE_STD_ATOMICS 0
 229 #else
 230     /* U_HAVE_ATOMIC is typically set by an autoconf test of #include <atomic>  */
 231     /*   Can be set manually, or left undefined, on platforms without autoconf. */
 232 #   if defined(U_HAVE_ATOMIC) &&  U_HAVE_ATOMIC
 233 #      define U_HAVE_STD_ATOMICS 1
 234 #   else
 235 #      define U_HAVE_STD_ATOMICS 0
 236 #   endif
 237 #endif
 238
 239
 240 /**
 241  *  \def U_HAVE_CLANG_ATOMICS
 242  *  Defines whether Clang c11 style built-in atomics are avaialable.
 243  *  These are used in preference to gcc atomics when both are available.
 244  */
 245 #ifdef U_HAVE_CLANG_ATOMICS
 246     /* Use the predefined value. */
 247 #elif __has_builtin(__c11_atomic_load) && \
 248     __has_builtin(__c11_atomic_store) && \
 249     __has_builtin(__c11_atomic_fetch_add) && \
 250     __has_builtin(__c11_atomic_fetch_sub)
 251 #    define U_HAVE_CLANG_ATOMICS 1
 252 #else
 253 #    define U_HAVE_CLANG_ATOMICS 0
 254 #endif
 255
 256 /*===========================================================================*/
 257 /** @{ Programs used by ICU code                                             */
 258 /*===========================================================================*/
 259
 260 /**
 261  * \def U_MAKE_IS_NMAKE
 262  * Defines whether the "make" program is Windows nmake.
 263  */
 264 #ifdef U_MAKE_IS_NMAKE
 265     /* Use the predefined value. */
 266 #elif U_PLATFORM == U_PF_WINDOWS
 267 #   define U_MAKE_IS_NMAKE 1
 268 #else
 269 #   define U_MAKE_IS_NMAKE 0
 270 #endif
 271
 272 /** @} */
 273
 274 /*==========================================================================*/
 275 /* Platform utilities                                                       */
 276 /*==========================================================================*/
 277
 278 /**
 279  * Platform utilities isolates the platform dependencies of the
 280  * libarary.  For each platform which this code is ported to, these
 281  * functions may have to be re-implemented.
 282  */
 283
 284 /**
 285  * Floating point utility to determine if a double is Not a Number (NaN).
 286  * @internal
 287  */
 288 U_INTERNAL UBool   U_EXPORT2 uprv_isNaN(double d);
 289 /**
 290  * Floating point utility to determine if a double has an infinite value.
 291  * @internal
 292  */
 293 U_INTERNAL UBool   U_EXPORT2 uprv_isInfinite(double d);
 294 /**
 295  * Floating point utility to determine if a double has a positive infinite value.
 296  * @internal
 297  */
 298 U_INTERNAL UBool   U_EXPORT2 uprv_isPositiveInfinity(double d);
 299 /**
 300  * Floating point utility to determine if a double has a negative infinite value.
 301  * @internal
 302  */
 303 U_INTERNAL UBool   U_EXPORT2 uprv_isNegativeInfinity(double d);
 304 /**
 305  * Floating point utility that returns a Not a Number (NaN) value.
 306  * @internal
 307  */
 308 U_INTERNAL double  U_EXPORT2 uprv_getNaN(void);
 309 /**
 310  * Floating point utility that returns an infinite value.
 311  * @internal
 312  */
 313 U_INTERNAL double  U_EXPORT2 uprv_getInfinity(void);
 314
 315 /**
 316  * Floating point utility to truncate a double.
 317  * @internal
 318  */
 319 U_INTERNAL double  U_EXPORT2 uprv_trunc(double d);
 320 /**
 321  * Floating point utility to calculate the floor of a double.
 322  * @internal
 323  */
 324 U_INTERNAL double  U_EXPORT2 uprv_floor(double d);
 325 /**
 326  * Floating point utility to calculate the ceiling of a double.
 327  * @internal
 328  */
 329 U_INTERNAL double  U_EXPORT2 uprv_ceil(double d);
 330 /**
 331  * Floating point utility to calculate the absolute value of a double.
 332  * @internal
 333  */
 334 U_INTERNAL double  U_EXPORT2 uprv_fabs(double d);
 335 /**
 336  * Floating point utility to calculate the fractional and integer parts of a double.
 337  * @internal
 338  */
 339 U_INTERNAL double  U_EXPORT2 uprv_modf(double d, double* pinteger);
 340 /**
 341  * Floating point utility to calculate the remainder of a double divided by another double.
 342  * @internal
 343  */
 344 U_INTERNAL double  U_EXPORT2 uprv_fmod(double d, double y);
 345 /**
 346  * Floating point utility to calculate d to the power of exponent (d^exponent).
 347  * @internal
 348  */
 349 U_INTERNAL double  U_EXPORT2 uprv_pow(double d, double exponent);
 350 /**
 351  * Floating point utility to calculate 10 to the power of exponent (10^exponent).
 352  * @internal
 353  */
 354 U_INTERNAL double  U_EXPORT2 uprv_pow10(int32_t exponent);
 355 /**
 356  * Floating point utility to calculate the maximum value of two doubles.
 357  * @internal
 358  */
 359 U_INTERNAL double  U_EXPORT2 uprv_fmax(double d, double y);
 360 /**
 361  * Floating point utility to calculate the minimum value of two doubles.
 362  * @internal
 363  */
 364 U_INTERNAL double  U_EXPORT2 uprv_fmin(double d, double y);
 365 /**
 366  * Private utility to calculate the maximum value of two integers.
 367  * @internal
 368  */
 369 U_INTERNAL int32_t U_EXPORT2 uprv_max(int32_t d, int32_t y);
 370 /**
 371  * Private utility to calculate the minimum value of two integers.
 372  * @internal
 373  */
 374 U_INTERNAL int32_t U_EXPORT2 uprv_min(int32_t d, int32_t y);
 375
 376 #if U_IS_BIG_ENDIAN
 377 #   define uprv_isNegative(number) (*((signed char *)&(number))<0)
 378 #else
 379 #   define uprv_isNegative(number) (*((signed char *)&(number)+sizeof(number)-1)<0)
 380 #endif
 381
 382 /**
 383  * Return the largest positive number that can be represented by an integer
 384  * type of arbitrary bit length.
 385  * @internal
 386  */
 387 U_INTERNAL double  U_EXPORT2 uprv_maxMantissa(void);
 388
 389 /**
 390  * Floating point utility to calculate the logarithm of a double.
 391  * @internal
 392  */
 393 U_INTERNAL double  U_EXPORT2 uprv_log(double d);
 394
 395 /**
 396  * Does common notion of rounding e.g. uprv_floor(x + 0.5);
 397  * @param x the double number
 398  * @return the rounded double
 399  * @internal
 400  */
 401 U_INTERNAL double  U_EXPORT2 uprv_round(double x);
 402
 403 #if 0
 404 /**
 405  * Returns the number of digits after the decimal point in a double number x.
 406  *
 407  * @param x the double number
 408  * @return the number of digits after the decimal point in a double number x.
 409  * @internal
 410  */
 411 /*U_INTERNAL int32_t  U_EXPORT2 uprv_digitsAfterDecimal(double x);*/
 412 #endif
 413
 414 #if !U_CHARSET_IS_UTF8
 415 /**
 416  * Please use ucnv_getDefaultName() instead.
 417  * Return the default codepage for this platform and locale.
 418  * This function can call setlocale() on Unix platforms. Please read the
 419  * platform documentation on setlocale() before calling this function.
 420  * @return the default codepage for this platform
 421  * @internal
 422  */
 423 U_INTERNAL const char*  U_EXPORT2 uprv_getDefaultCodepage(void);
 424 #endif
 425
 426 /**
 427  * Please use uloc_getDefault() instead.
 428  * Return the default locale ID string by querying ths system, or
 429  *     zero if one cannot be found.
 430  * This function can call setlocale() on Unix platforms. Please read the
 431  * platform documentation on setlocale() before calling this function.
 432  * @return the default locale ID string
 433  * @internal
 434  */
 435 U_INTERNAL const char*  U_EXPORT2 uprv_getDefaultLocaleID(void);
 436
 437 /**
 438  * Time zone utilities
 439  *
 440  * Wrappers for C runtime library functions relating to timezones.
 441  * The t_tzset() function (similar to tzset) uses the current setting
 442  * of the environment variable TZ to assign values to three global
 443  * variables: daylight, timezone, and tzname. These variables have the
 444  * following meanings, and are declared in &lt;time.h&gt;.
 445  *
 446  *   daylight   Nonzero if daylight-saving-time zone (DST) is specified
 447  *              in TZ; otherwise, 0. Default value is 1.
 448  *   timezone   Difference in seconds between coordinated universal
 449  *              time and local time. E.g., -28,800 for PST (GMT-8hrs)
 450  *   tzname(0)  Three-letter time-zone name derived from TZ environment
 451  *              variable. E.g., "PST".
 452  *   tzname(1)  Three-letter DST zone name derived from TZ environment
 453  *              variable.  E.g., "PDT". If DST zone is omitted from TZ,
 454  *              tzname(1) is an empty string.
 455  *
 456  * Notes: For example, to set the TZ environment variable to correspond
 457  * to the current time zone in Germany, you can use one of the
 458  * following statements:
 459  *
 460  *   set TZ=GST1GDT
 461  *   set TZ=GST+1GDT
 462  *
 463  * If the TZ value is not set, t_tzset() attempts to use the time zone
 464  * information specified by the operating system. Under Windows NT
 465  * and Windows 95, this information is specified in the Control Panel's
 466  * Date/Time application.
 467  * @internal
 468  */
 469 U_INTERNAL void     U_EXPORT2 uprv_tzset(void);
 470
 471 /**
 472  * Difference in seconds between coordinated universal
 473  * time and local time. E.g., -28,800 for PST (GMT-8hrs)
 474  * @return the difference in seconds between coordinated universal time and local time.
 475  * @internal
 476  */
 477 U_INTERNAL int32_t  U_EXPORT2 uprv_timezone(void);
 478
 479 /**
 480  *   tzname(0)  Three-letter time-zone name derived from TZ environment
 481  *              variable. E.g., "PST".
 482  *   tzname(1)  Three-letter DST zone name derived from TZ environment
 483  *              variable.  E.g., "PDT". If DST zone is omitted from TZ,
 484  *              tzname(1) is an empty string.
 485  * @internal
 486  */
 487 U_INTERNAL const char* U_EXPORT2 uprv_tzname(int n);
 488
 489 /**
 490  * Reset the global tzname cache.
 491  * @internal
 492  */
 493 U_INTERNAL void uprv_tzname_clear_cache();
 494
 495 /**
 496  * Get UTC (GMT) time measured in milliseconds since 0:00 on 1/1/1970.
 497  * This function is affected by 'faketime' and should be the bottleneck for all user-visible ICU time functions.
 498  * @return the UTC time measured in milliseconds
 499  * @internal
 500  */
 501 U_INTERNAL UDate U_EXPORT2 uprv_getUTCtime(void);
 502
 503 /**
 504  * Get UTC (GMT) time measured in milliseconds since 0:00 on 1/1/1970.
 505  * This function is not affected by 'faketime', so it should only be used by low level test functions- not by anything that
 506  * exposes time to the end user.
 507  * @return the UTC time measured in milliseconds
 508  * @internal
 509  */
 510 U_INTERNAL UDate U_EXPORT2 uprv_getRawUTCtime(void);
 511
 512 /**
 513  * Determine whether a pathname is absolute or not, as defined by the platform.
 514  * @param path Pathname to test
 515  * @return TRUE if the path is absolute
 516  * @internal (ICU 3.0)
 517  */
 518 U_INTERNAL UBool U_EXPORT2 uprv_pathIsAbsolute(const char *path);
 519
 520 /**
 521  * Use U_MAX_PTR instead of this function.
 522  * @param void pointer to test
 523  * @return the largest possible pointer greater than the base
 524  * @internal (ICU 3.8)
 525  */
 526 U_INTERNAL void * U_EXPORT2 uprv_maximumPtr(void *base);
 527
 528 /**
 529  * Maximum value of a (void*) - use to indicate the limit of an 'infinite' buffer.
 530  * In fact, buffer sizes must not exceed 2GB so that the difference between
 531  * the buffer limit and the buffer start can be expressed in an int32_t.
 532  *
 533  * The definition of U_MAX_PTR must fulfill the following conditions:
 534  * - return the largest possible pointer greater than base
 535  * - return a valid pointer according to the machine architecture (AS/400, 64-bit, etc.)
 536  * - avoid wrapping around at high addresses
 537  * - make sure that the returned pointer is not farther from base than 0x7fffffff bytes
 538  *
 539  * @param base The beginning of a buffer to find the maximum offset from
 540  * @internal
 541  */
 542 #ifndef U_MAX_PTR
 543 #  if U_PLATFORM == U_PF_OS390 && !defined(_LP64)
 544     /* We have 31-bit pointers. */
 545 #    define U_MAX_PTR(base) ((void *)0x7fffffff)
 546 #  elif U_PLATFORM == U_PF_OS400
 547 #    define U_MAX_PTR(base) uprv_maximumPtr((void *)base)
 548 #  elif 0
 549     /*
 550      * For platforms where pointers are scalar values (which is normal, but unlike i5/OS)
 551      * but that do not define uintptr_t.
 552      *
 553      * However, this does not work on modern compilers:
 554      * The C++ standard does not define pointer overflow, and allows compilers to
 555      * assume that p+u>p for any pointer p and any integer u>0.
 556      * Thus, modern compilers optimize away the ">" comparison.
 557      * (See ICU tickets #7187 and #8096.)
 558      */
 559 #    define U_MAX_PTR(base) \
 560     ((void *)(((char *)(base)+0x7fffffffu) > (char *)(base) \
 561         ? ((char *)(base)+0x7fffffffu) \
 562         : (char *)-1))
 563 #  else
 564     /* Default version. C++ standard compliant for scalar pointers. */
 565 #    define U_MAX_PTR(base) \
 566     ((void *)(((uintptr_t)(base)+0x7fffffffu) > (uintptr_t)(base) \
 567         ? ((uintptr_t)(base)+0x7fffffffu) \
 568         : (uintptr_t)-1))
 569 #  endif
 570 #endif
 571
 572 /*  Dynamic Library Functions */
 573
 574 typedef void (UVoidFunction)(void);
 575
 576 #if U_ENABLE_DYLOAD
 577 /**
 578  * Load a library
 579  * @internal (ICU 4.4)
 580  */
 581 U_INTERNAL void * U_EXPORT2 uprv_dl_open(const char *libName, UErrorCode *status);
 582
 583 /**
 584  * Close a library
 585  * @internal (ICU 4.4)
 586  */
 587 U_INTERNAL void U_EXPORT2 uprv_dl_close( void *lib, UErrorCode *status);
 588
 589 /**
 590  * Extract a symbol from a library (function)
 591  * @internal (ICU 4.8)
 592  */
 593 U_INTERNAL UVoidFunction* U_EXPORT2 uprv_dlsym_func( void *lib, const char *symbolName, UErrorCode *status);
 594
 595 /**
 596  * Extract a symbol from a library (function)
 597  * Not implemented, no clients.
 598  * @internal
 599  */
 600 /* U_INTERNAL void * U_EXPORT2 uprv_dlsym_data( void *lib, const char *symbolName, UErrorCode *status); */
 601
 602 #endif
 603
 604 /**
 605  * Define malloc and related functions
 606  * @internal
 607  */
 608 #if U_PLATFORM == U_PF_OS400
 609 # define uprv_default_malloc(x) _C_TS_malloc(x)
 610 # define uprv_default_realloc(x,y) _C_TS_realloc(x,y)
 611 # define uprv_default_free(x) _C_TS_free(x)
 612 /* also _C_TS_calloc(x) */
 613 #else
 614 /* C defaults */
 615 # define uprv_default_malloc(x) malloc(x)
 616 # define uprv_default_realloc(x,y) realloc(x,y)
 617 # define uprv_default_free(x) free(x)
 618 #endif
 619
 620
 621 #endif