diff options
Diffstat (limited to 'deps/node/deps/icu-small/source/common/putilimp.h')
| -rw-r--r-- | deps/node/deps/icu-small/source/common/putilimp.h | 669 |
1 files changed, 0 insertions, 669 deletions
diff --git a/deps/node/deps/icu-small/source/common/putilimp.h b/deps/node/deps/icu-small/source/common/putilimp.h deleted file mode 100644 index f744746b..00000000 --- a/deps/node/deps/icu-small/source/common/putilimp.h +++ /dev/null @@ -1,669 +0,0 @@ -// © 2016 and later: Unicode, Inc. and others. -// License & terms of use: http://www.unicode.org/copyright.html -/* -****************************************************************************** -* -* Copyright (C) 1997-2016, International Business Machines -* Corporation and others. All Rights Reserved. -* -****************************************************************************** -* -* FILE NAME : putilimp.h -* -* Date Name Description -* 10/17/04 grhoten Move internal functions from putil.h to this file. -****************************************************************************** -*/ - -#ifndef PUTILIMP_H -#define PUTILIMP_H - -#include "unicode/utypes.h" -#include "unicode/putil.h" - -/** - * \def U_SIGNED_RIGHT_SHIFT_IS_ARITHMETIC - * Nearly all CPUs and compilers implement a right-shift of a signed integer - * as an Arithmetic Shift Right which copies the sign bit (the Most Significant Bit (MSB)) - * into the vacated bits (sign extension). - * For example, (int32_t)0xfff5fff3>>4 becomes 0xffff5fff and -1>>1=-1. - * - * This can be useful for storing a signed value in the upper bits - * and another bit field in the lower bits. - * The signed value can be retrieved by simple right-shifting. - * - * This is consistent with the Java language. - * - * However, the C standard allows compilers to implement a right-shift of a signed integer - * as a Logical Shift Right which copies a 0 into the vacated bits. - * For example, (int32_t)0xfff5fff3>>4 becomes 0x0fff5fff and -1>>1=0x7fffffff. - * - * Code that depends on the natural behavior should be guarded with this macro, - * with an alternate path for unusual platforms. - * @internal - */ -#ifdef U_SIGNED_RIGHT_SHIFT_IS_ARITHMETIC - /* Use the predefined value. */ -#else - /* - * Nearly all CPUs & compilers implement a right-shift of a signed integer - * as an Arithmetic Shift Right (with sign extension). - */ -# define U_SIGNED_RIGHT_SHIFT_IS_ARITHMETIC 1 -#endif - -/** Define this to 1 if your platform supports IEEE 754 floating point, - to 0 if it does not. */ -#ifndef IEEE_754 -# define IEEE_754 1 -#endif - -/** - * uintptr_t is an optional part of the standard definitions in stdint.h. - * The opengroup.org documentation for stdint.h says - * "On XSI-conformant systems, the intptr_t and uintptr_t types are required; - * otherwise, they are optional." - * We assume that when uintptr_t is defined, UINTPTR_MAX is defined as well. - * - * Do not use ptrdiff_t since it is signed. size_t is unsigned. - */ -/* TODO: This check fails on some z environments. Filed a ticket #9357 for this. */ -#if !defined(__intptr_t_defined) && !defined(UINTPTR_MAX) && (U_PLATFORM != U_PF_OS390) -typedef size_t uintptr_t; -#endif - -/*===========================================================================*/ -/** @{ Information about POSIX support */ -/*===========================================================================*/ - -#ifdef U_HAVE_NL_LANGINFO_CODESET - /* Use the predefined value. */ -#elif U_PLATFORM_USES_ONLY_WIN32_API || U_PLATFORM == U_PF_ANDROID || U_PLATFORM == U_PF_QNX -# define U_HAVE_NL_LANGINFO_CODESET 0 -#else -# define U_HAVE_NL_LANGINFO_CODESET 1 -#endif - -#ifdef U_NL_LANGINFO_CODESET - /* Use the predefined value. */ -#elif !U_HAVE_NL_LANGINFO_CODESET -# define U_NL_LANGINFO_CODESET -1 -#elif U_PLATFORM == U_PF_OS400 - /* not defined */ -#else -# define U_NL_LANGINFO_CODESET CODESET -#endif - -#if defined(U_TZSET) || defined(U_HAVE_TZSET) - /* Use the predefined value. */ -#elif U_PLATFORM_USES_ONLY_WIN32_API - // UWP doesn't support tzset or environment variables for tz -#if U_PLATFORM_HAS_WINUWP_API == 0 -# define U_TZSET _tzset -#endif -#elif U_PLATFORM == U_PF_OS400 - /* not defined */ -#else -# define U_TZSET tzset -#endif - -#if defined(U_TIMEZONE) || defined(U_HAVE_TIMEZONE) - /* Use the predefined value. */ -#elif U_PLATFORM == U_PF_ANDROID -# define U_TIMEZONE timezone -#elif defined(__UCLIBC__) - // uClibc does not have __timezone or _timezone. -#elif defined(_NEWLIB_VERSION) -# define U_TIMEZONE _timezone -#elif defined(__GLIBC__) - // glibc -# define U_TIMEZONE __timezone -#elif U_PLATFORM_IS_LINUX_BASED - // not defined -#elif U_PLATFORM_USES_ONLY_WIN32_API -# define U_TIMEZONE _timezone -#elif U_PLATFORM == U_PF_BSD && !defined(__NetBSD__) - /* not defined */ -#elif U_PLATFORM == U_PF_OS400 - /* not defined */ -#elif U_PLATFORM == U_PF_IPHONE - /* not defined */ -#else -# define U_TIMEZONE timezone -#endif - -#if defined(U_TZNAME) || defined(U_HAVE_TZNAME) - /* Use the predefined value. */ -#elif U_PLATFORM_USES_ONLY_WIN32_API - /* not usable on all windows platforms */ -#if U_PLATFORM_HAS_WINUWP_API == 0 -# define U_TZNAME _tzname -#endif -#elif U_PLATFORM == U_PF_OS400 - /* not defined */ -#else -# define U_TZNAME tzname -#endif - -#ifdef U_HAVE_MMAP - /* Use the predefined value. */ -#elif U_PLATFORM_USES_ONLY_WIN32_API -# define U_HAVE_MMAP 0 -#else -# define U_HAVE_MMAP 1 -#endif - -#ifdef U_HAVE_POPEN - /* Use the predefined value. */ -#elif U_PLATFORM_USES_ONLY_WIN32_API -# define U_HAVE_POPEN 0 -#elif U_PLATFORM == U_PF_OS400 -# define U_HAVE_POPEN 0 -#else -# define U_HAVE_POPEN 1 -#endif - -/** - * \def U_HAVE_DIRENT_H - * Defines whether dirent.h is available. - * @internal - */ -#ifdef U_HAVE_DIRENT_H - /* Use the predefined value. */ -#elif U_PLATFORM_USES_ONLY_WIN32_API -# define U_HAVE_DIRENT_H 0 -#else -# define U_HAVE_DIRENT_H 1 -#endif - -/** @} */ - -/*===========================================================================*/ -/** @{ GCC built in functions for atomic memory operations */ -/*===========================================================================*/ - -/** - * \def U_HAVE_GCC_ATOMICS - * @internal - */ -#ifdef U_HAVE_GCC_ATOMICS - /* Use the predefined value. */ -#elif U_PLATFORM == U_PF_MINGW - #define U_HAVE_GCC_ATOMICS 0 -#elif U_GCC_MAJOR_MINOR >= 404 || defined(__clang__) - /* TODO: Intel icc and IBM xlc on AIX also support gcc atomics. (Intel originated them.) - * Add them for these compilers. - * Note: Clang sets __GNUC__ defines for version 4.2, so misses the 4.4 test here. - */ -# define U_HAVE_GCC_ATOMICS 1 -#else -# define U_HAVE_GCC_ATOMICS 0 -#endif - -/** @} */ - -/** - * \def U_HAVE_STD_ATOMICS - * Defines whether to use the standard C++11 <atomic> functions - * If false, ICU will fall back to compiler or platform specific alternatives. - * Note: support for these fall back options for atomics will be removed in a future version - * of ICU, and the use of C++ 11 atomics will be required. - * @internal - */ -#ifdef U_HAVE_STD_ATOMICS - /* Use the predefined value. */ -#else -# define U_HAVE_STD_ATOMICS 1 -#endif - -/** - * \def U_HAVE_CLANG_ATOMICS - * Defines whether Clang c11 style built-in atomics are available. - * These are used in preference to gcc atomics when both are available. - */ -#ifdef U_HAVE_CLANG_ATOMICS - /* Use the predefined value. */ -#elif __has_builtin(__c11_atomic_load) && \ - __has_builtin(__c11_atomic_store) && \ - __has_builtin(__c11_atomic_fetch_add) && \ - __has_builtin(__c11_atomic_fetch_sub) -# define U_HAVE_CLANG_ATOMICS 1 -#else -# define U_HAVE_CLANG_ATOMICS 0 -#endif - -/*===========================================================================*/ -/** @{ Programs used by ICU code */ -/*===========================================================================*/ - -/** - * \def U_MAKE_IS_NMAKE - * Defines whether the "make" program is Windows nmake. - */ -#ifdef U_MAKE_IS_NMAKE - /* Use the predefined value. */ -#elif U_PLATFORM == U_PF_WINDOWS -# define U_MAKE_IS_NMAKE 1 -#else -# define U_MAKE_IS_NMAKE 0 -#endif - -/** @} */ - -/*==========================================================================*/ -/* Platform utilities */ -/*==========================================================================*/ - -/** - * Platform utilities isolates the platform dependencies of the - * library. For each platform which this code is ported to, these - * functions may have to be re-implemented. - */ - -/** - * Floating point utility to determine if a double is Not a Number (NaN). - * @internal - */ -U_INTERNAL UBool U_EXPORT2 uprv_isNaN(double d); -/** - * Floating point utility to determine if a double has an infinite value. - * @internal - */ -U_INTERNAL UBool U_EXPORT2 uprv_isInfinite(double d); -/** - * Floating point utility to determine if a double has a positive infinite value. - * @internal - */ -U_INTERNAL UBool U_EXPORT2 uprv_isPositiveInfinity(double d); -/** - * Floating point utility to determine if a double has a negative infinite value. - * @internal - */ -U_INTERNAL UBool U_EXPORT2 uprv_isNegativeInfinity(double d); -/** - * Floating point utility that returns a Not a Number (NaN) value. - * @internal - */ -U_INTERNAL double U_EXPORT2 uprv_getNaN(void); -/** - * Floating point utility that returns an infinite value. - * @internal - */ -U_INTERNAL double U_EXPORT2 uprv_getInfinity(void); - -/** - * Floating point utility to truncate a double. - * @internal - */ -U_INTERNAL double U_EXPORT2 uprv_trunc(double d); -/** - * Floating point utility to calculate the floor of a double. - * @internal - */ -U_INTERNAL double U_EXPORT2 uprv_floor(double d); -/** - * Floating point utility to calculate the ceiling of a double. - * @internal - */ -U_INTERNAL double U_EXPORT2 uprv_ceil(double d); -/** - * Floating point utility to calculate the absolute value of a double. - * @internal - */ -U_INTERNAL double U_EXPORT2 uprv_fabs(double d); -/** - * Floating point utility to calculate the fractional and integer parts of a double. - * @internal - */ -U_INTERNAL double U_EXPORT2 uprv_modf(double d, double* pinteger); -/** - * Floating point utility to calculate the remainder of a double divided by another double. - * @internal - */ -U_INTERNAL double U_EXPORT2 uprv_fmod(double d, double y); -/** - * Floating point utility to calculate d to the power of exponent (d^exponent). - * @internal - */ -U_INTERNAL double U_EXPORT2 uprv_pow(double d, double exponent); -/** - * Floating point utility to calculate 10 to the power of exponent (10^exponent). - * @internal - */ -U_INTERNAL double U_EXPORT2 uprv_pow10(int32_t exponent); -/** - * Floating point utility to calculate the maximum value of two doubles. - * @internal - */ -U_INTERNAL double U_EXPORT2 uprv_fmax(double d, double y); -/** - * Floating point utility to calculate the minimum value of two doubles. - * @internal - */ -U_INTERNAL double U_EXPORT2 uprv_fmin(double d, double y); -/** - * Private utility to calculate the maximum value of two integers. - * @internal - */ -U_INTERNAL int32_t U_EXPORT2 uprv_max(int32_t d, int32_t y); -/** - * Private utility to calculate the minimum value of two integers. - * @internal - */ -U_INTERNAL int32_t U_EXPORT2 uprv_min(int32_t d, int32_t y); - -#if U_IS_BIG_ENDIAN -# define uprv_isNegative(number) (*((signed char *)&(number))<0) -#else -# define uprv_isNegative(number) (*((signed char *)&(number)+sizeof(number)-1)<0) -#endif - -/** - * Return the largest positive number that can be represented by an integer - * type of arbitrary bit length. - * @internal - */ -U_INTERNAL double U_EXPORT2 uprv_maxMantissa(void); - -/** - * Floating point utility to calculate the logarithm of a double. - * @internal - */ -U_INTERNAL double U_EXPORT2 uprv_log(double d); - -/** - * Does common notion of rounding e.g. uprv_floor(x + 0.5); - * @param x the double number - * @return the rounded double - * @internal - */ -U_INTERNAL double U_EXPORT2 uprv_round(double x); - -/** - * Adds the signed integers a and b, storing the result in res. - * Checks for signed integer overflow. - * Similar to the GCC/Clang extension __builtin_add_overflow - * - * @param a The first operand. - * @param b The second operand. - * @param res a + b - * @return true if overflow occurred; false if no overflow occurred. - * @internal - */ -U_INTERNAL UBool U_EXPORT2 uprv_add32_overflow(int32_t a, int32_t b, int32_t* res); - -/** - * Multiplies the signed integers a and b, storing the result in res. - * Checks for signed integer overflow. - * Similar to the GCC/Clang extension __builtin_mul_overflow - * - * @param a The first multiplicand. - * @param b The second multiplicand. - * @param res a * b - * @return true if overflow occurred; false if no overflow occurred. - * @internal - */ -U_INTERNAL UBool U_EXPORT2 uprv_mul32_overflow(int32_t a, int32_t b, int32_t* res); - -#if 0 -/** - * Returns the number of digits after the decimal point in a double number x. - * - * @param x the double number - * @return the number of digits after the decimal point in a double number x. - * @internal - */ -/*U_INTERNAL int32_t U_EXPORT2 uprv_digitsAfterDecimal(double x);*/ -#endif - -#if !U_CHARSET_IS_UTF8 -/** - * Please use ucnv_getDefaultName() instead. - * Return the default codepage for this platform and locale. - * This function can call setlocale() on Unix platforms. Please read the - * platform documentation on setlocale() before calling this function. - * @return the default codepage for this platform - * @internal - */ -U_INTERNAL const char* U_EXPORT2 uprv_getDefaultCodepage(void); -#endif - -/** - * Please use uloc_getDefault() instead. - * Return the default locale ID string by querying the system, or - * zero if one cannot be found. - * This function can call setlocale() on Unix platforms. Please read the - * platform documentation on setlocale() before calling this function. - * @return the default locale ID string - * @internal - */ -U_INTERNAL const char* U_EXPORT2 uprv_getDefaultLocaleID(void); - -/** - * Time zone utilities - * - * Wrappers for C runtime library functions relating to timezones. - * The t_tzset() function (similar to tzset) uses the current setting - * of the environment variable TZ to assign values to three global - * variables: daylight, timezone, and tzname. These variables have the - * following meanings, and are declared in <time.h>. - * - * daylight Nonzero if daylight-saving-time zone (DST) is specified - * in TZ; otherwise, 0. Default value is 1. - * timezone Difference in seconds between coordinated universal - * time and local time. E.g., -28,800 for PST (GMT-8hrs) - * tzname(0) Three-letter time-zone name derived from TZ environment - * variable. E.g., "PST". - * tzname(1) Three-letter DST zone name derived from TZ environment - * variable. E.g., "PDT". If DST zone is omitted from TZ, - * tzname(1) is an empty string. - * - * Notes: For example, to set the TZ environment variable to correspond - * to the current time zone in Germany, you can use one of the - * following statements: - * - * set TZ=GST1GDT - * set TZ=GST+1GDT - * - * If the TZ value is not set, t_tzset() attempts to use the time zone - * information specified by the operating system. Under Windows NT - * and Windows 95, this information is specified in the Control Panel's - * Date/Time application. - * @internal - */ -U_INTERNAL void U_EXPORT2 uprv_tzset(void); - -/** - * Difference in seconds between coordinated universal - * time and local time. E.g., -28,800 for PST (GMT-8hrs) - * @return the difference in seconds between coordinated universal time and local time. - * @internal - */ -U_INTERNAL int32_t U_EXPORT2 uprv_timezone(void); - -/** - * tzname(0) Three-letter time-zone name derived from TZ environment - * variable. E.g., "PST". - * tzname(1) Three-letter DST zone name derived from TZ environment - * variable. E.g., "PDT". If DST zone is omitted from TZ, - * tzname(1) is an empty string. - * @internal - */ -U_INTERNAL const char* U_EXPORT2 uprv_tzname(int n); - -/** - * Reset the global tzname cache. - * @internal - */ -U_INTERNAL void uprv_tzname_clear_cache(); - -/** - * Get UTC (GMT) time measured in milliseconds since 0:00 on 1/1/1970. - * This function is affected by 'faketime' and should be the bottleneck for all user-visible ICU time functions. - * @return the UTC time measured in milliseconds - * @internal - */ -U_INTERNAL UDate U_EXPORT2 uprv_getUTCtime(void); - -/** - * Get UTC (GMT) time measured in milliseconds since 0:00 on 1/1/1970. - * This function is not affected by 'faketime', so it should only be used by low level test functions- not by anything that - * exposes time to the end user. - * @return the UTC time measured in milliseconds - * @internal - */ -U_INTERNAL UDate U_EXPORT2 uprv_getRawUTCtime(void); - -/** - * Determine whether a pathname is absolute or not, as defined by the platform. - * @param path Pathname to test - * @return TRUE if the path is absolute - * @internal (ICU 3.0) - */ -U_INTERNAL UBool U_EXPORT2 uprv_pathIsAbsolute(const char *path); - -/** - * Use U_MAX_PTR instead of this function. - * @param void pointer to test - * @return the largest possible pointer greater than the base - * @internal (ICU 3.8) - */ -U_INTERNAL void * U_EXPORT2 uprv_maximumPtr(void *base); - -/** - * Maximum value of a (void*) - use to indicate the limit of an 'infinite' buffer. - * In fact, buffer sizes must not exceed 2GB so that the difference between - * the buffer limit and the buffer start can be expressed in an int32_t. - * - * The definition of U_MAX_PTR must fulfill the following conditions: - * - return the largest possible pointer greater than base - * - return a valid pointer according to the machine architecture (AS/400, 64-bit, etc.) - * - avoid wrapping around at high addresses - * - make sure that the returned pointer is not farther from base than 0x7fffffff bytes - * - * @param base The beginning of a buffer to find the maximum offset from - * @internal - */ -#ifndef U_MAX_PTR -# if U_PLATFORM == U_PF_OS390 && !defined(_LP64) - /* We have 31-bit pointers. */ -# define U_MAX_PTR(base) ((void *)0x7fffffff) -# elif U_PLATFORM == U_PF_OS400 -# define U_MAX_PTR(base) uprv_maximumPtr((void *)base) -# elif 0 - /* - * For platforms where pointers are scalar values (which is normal, but unlike i5/OS) - * but that do not define uintptr_t. - * - * However, this does not work on modern compilers: - * The C++ standard does not define pointer overflow, and allows compilers to - * assume that p+u>p for any pointer p and any integer u>0. - * Thus, modern compilers optimize away the ">" comparison. - * (See ICU tickets #7187 and #8096.) - */ -# define U_MAX_PTR(base) \ - ((void *)(((char *)(base)+0x7fffffffu) > (char *)(base) \ - ? ((char *)(base)+0x7fffffffu) \ - : (char *)-1)) -# else - /* Default version. C++ standard compliant for scalar pointers. */ -# define U_MAX_PTR(base) \ - ((void *)(((uintptr_t)(base)+0x7fffffffu) > (uintptr_t)(base) \ - ? ((uintptr_t)(base)+0x7fffffffu) \ - : (uintptr_t)-1)) -# endif -#endif - - -#ifdef __cplusplus -/** - * Pin a buffer capacity such that doing pointer arithmetic - * on the destination pointer and capacity cannot overflow. - * - * The pinned capacity must fulfill the following conditions (for positive capacities): - * - dest + capacity is a valid pointer according to the machine arcitecture (AS/400, 64-bit, etc.) - * - (dest + capacity) >= dest - * - The size (in bytes) of T[capacity] does not exceed 0x7fffffff - * - * @param dest the destination buffer pointer. - * @param capacity the requested buffer capacity, in units of type T. - * @return the pinned capacity. - * @internal - */ -template <typename T> -inline int32_t pinCapacity(T *dest, int32_t capacity) { - if (capacity <= 0) { return capacity; } - - uintptr_t destInt = (uintptr_t)dest; - uintptr_t maxInt; - -# if U_PLATFORM == U_PF_OS390 && !defined(_LP64) - // We have 31-bit pointers. - maxInt = 0x7fffffff; -# elif U_PLATFORM == U_PF_OS400 - maxInt = (uintptr_t)uprv_maximumPtr((void *)dest); -# else - maxInt = destInt + 0x7fffffffu; - if (maxInt < destInt) { - // Less than 2GB to the end of the address space. - // Pin to that to prevent address overflow. - maxInt = (uintptr_t)-1; - } -# endif - - uintptr_t maxBytes = maxInt - destInt; // max. 2GB - int32_t maxCapacity = (int32_t)(maxBytes / sizeof(T)); - return capacity <= maxCapacity ? capacity : maxCapacity; -} -#endif // __cplusplus - -/* Dynamic Library Functions */ - -typedef void (UVoidFunction)(void); - -#if U_ENABLE_DYLOAD -/** - * Load a library - * @internal (ICU 4.4) - */ -U_INTERNAL void * U_EXPORT2 uprv_dl_open(const char *libName, UErrorCode *status); - -/** - * Close a library - * @internal (ICU 4.4) - */ -U_INTERNAL void U_EXPORT2 uprv_dl_close( void *lib, UErrorCode *status); - -/** - * Extract a symbol from a library (function) - * @internal (ICU 4.8) - */ -U_INTERNAL UVoidFunction* U_EXPORT2 uprv_dlsym_func( void *lib, const char *symbolName, UErrorCode *status); - -/** - * Extract a symbol from a library (function) - * Not implemented, no clients. - * @internal - */ -/* U_INTERNAL void * U_EXPORT2 uprv_dlsym_data( void *lib, const char *symbolName, UErrorCode *status); */ - -#endif - -/** - * Define malloc and related functions - * @internal - */ -#if U_PLATFORM == U_PF_OS400 -# define uprv_default_malloc(x) _C_TS_malloc(x) -# define uprv_default_realloc(x,y) _C_TS_realloc(x,y) -# define uprv_default_free(x) _C_TS_free(x) -/* also _C_TS_calloc(x) */ -#else -/* C defaults */ -# define uprv_default_malloc(x) malloc(x) -# define uprv_default_realloc(x,y) realloc(x,y) -# define uprv_default_free(x) free(x) -#endif - - -#endif |