Crypto++  8.2
Free C++ class library of cryptographic schemes
config.h
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1 // config.h - originally written and placed in the public domain by Wei Dai
2 
3 /// \file config.h
4 /// \brief Library configuration file
5 
6 #ifndef CRYPTOPP_CONFIG_H
7 #define CRYPTOPP_CONFIG_H
8 
9 // ***************** Important Settings ********************
10 
11 // define this if running on a big-endian CPU
12 // big endian will be assumed if CRYPTOPP_LITTLE_ENDIAN is not non-0
13 #if !defined(CRYPTOPP_LITTLE_ENDIAN) && !defined(CRYPTOPP_BIG_ENDIAN) && (defined(__BIG_ENDIAN__) || (defined(__s390__) || defined(__s390x__) || defined(__zarch__)) || (defined(__m68k__) || defined(__MC68K__)) || defined(__sparc) || defined(__sparc__) || defined(__hppa__) || defined(__MIPSEB__) || defined(__ARMEB__) || (defined(__MWERKS__) && !defined(__INTEL__)))
14 # define CRYPTOPP_BIG_ENDIAN 1
15 #endif
16 
17 // define this if running on a little-endian CPU
18 // big endian will be assumed if CRYPTOPP_LITTLE_ENDIAN is not non-0
19 #if !defined(CRYPTOPP_BIG_ENDIAN) && !defined(CRYPTOPP_LITTLE_ENDIAN)
20 # define CRYPTOPP_LITTLE_ENDIAN 1
21 #endif
22 
23 // Sanity checks. Some processors have more than big, little and bi-endian modes. PDP mode, where order results in "4312", should
24 // raise red flags immediately. Additionally, mis-classified machines, like (previosuly) S/390, should raise red flags immediately.
25 #if (CRYPTOPP_BIG_ENDIAN) && defined(__GNUC__) && defined(__BYTE_ORDER__) && (__BYTE_ORDER__ != __ORDER_BIG_ENDIAN__)
26 # error "(CRYPTOPP_BIG_ENDIAN) is set, but __BYTE_ORDER__ is not __ORDER_BIG_ENDIAN__"
27 #endif
28 #if (CRYPTOPP_LITTLE_ENDIAN) && defined(__GNUC__) && defined(__BYTE_ORDER__) && (__BYTE_ORDER__ != __ORDER_LITTLE_ENDIAN__)
29 # error "(CRYPTOPP_LITTLE_ENDIAN) is set, but __BYTE_ORDER__ is not __ORDER_LITTLE_ENDIAN__"
30 #endif
31 
32 // Define this if you want to disable all OS-dependent features,
33 // such as sockets and OS-provided random number generators
34 // #define NO_OS_DEPENDENCE
35 
36 // Define this to use features provided by Microsoft's CryptoAPI.
37 // Currently the only feature used is Windows random number generation.
38 // This macro will be ignored if NO_OS_DEPENDENCE is defined.
39 // #define USE_MS_CRYPTOAPI
40 
41 // Define this to use features provided by Microsoft's CryptoNG API.
42 // CryptoNG API is available in Vista and above and its cross platform,
43 // including desktop apps and store apps. Currently the only feature
44 // used is Windows random number generation.
45 // This macro will be ignored if NO_OS_DEPENDENCE is defined.
46 // #define USE_MS_CNGAPI
47 
48 // If the user did not make a choice, then select CryptoNG if
49 // targeting Windows 8 or above.
50 #if !defined(USE_MS_CRYPTOAPI) && !defined(USE_MS_CNGAPI)
51 # if !defined(_USING_V110_SDK71_) && ((WINVER >= 0x0602 /*_WIN32_WINNT_WIN8*/) || (_WIN32_WINNT >= 0x0602 /*_WIN32_WINNT_WIN8*/))
52 # define USE_MS_CNGAPI
53 # else
54 # define USE_MS_CRYPTOAPI
55 # endif
56 #endif
57 
58 // Define this to disable ASM, intrinsics and built-ins. The library will be
59 // compiled using C++ only. The library code will not include SSE2 (and
60 // above), NEON, Aarch32, Aarch64, or Altivec (and above). Note the compiler
61 // may use higher ISAs depending on compiler options, but the library will not
62 // explictly use the ISAs. When disabling ASM, it is best to do it from
63 // config.h to ensure the library and all programs share the setting.
64 // #define CRYPTOPP_DISABLE_ASM 1
65 
66 // https://github.com/weidai11/cryptopp/issues/719
67 #if defined(__native_client__)
68 # define CRYPTOPP_DISABLE_ASM 1
69 #endif
70 
71 // Some Clang and SunCC cannot handle mixed asm with positional arguments,
72 // where the body is Intel style with no prefix and the templates are
73 // AT&T style. Define this is the Makefile misdetects the configuration.
74 // Also see https://bugs.llvm.org/show_bug.cgi?id=39895 .
75 // #define CRYPTOPP_DISABLE_MIXED_ASM 1
76 
77 // Define CRYPTOPP_NO_CXX11 to avoid C++11 related features shown at the
78 // end of this file. Some compilers and standard C++ headers advertise C++11
79 // but they are really just C++03 with some additional C++11 headers and
80 // non-conforming classes. You might also consider `-std=c++03` or
81 // `-std=gnu++03`, but they are required options when building the library
82 // and all programs. CRYPTOPP_NO_CXX11 is probably easier to manage but it may
83 // cause -Wterminate warnings under GCC. MSVC++ has a similar warning.
84 // Also see https://github.com/weidai11/cryptopp/issues/529
85 // #define CRYPTOPP_NO_CXX11 1
86 
87 // Define CRYPTOPP_NO_CXX17 to avoid C++17 related features shown at the end of
88 // this file. At the moment it should only affect std::uncaught_exceptions.
89 // #define CRYPTOPP_NO_CXX17 1
90 
91 // CRYPTOPP_ALLOW_UNALIGNED_DATA_ACCESS is no longer honored. It
92 // was removed at https://github.com/weidai11/cryptopp/issues/682
93 // #define CRYPTOPP_ALLOW_UNALIGNED_DATA_ACCESS 1
94 
95 // ***************** Less Important Settings ***************
96 
97 // Library version macro. Since this macro is in a header, it reflects
98 // the version of the library the headers came from. It is not
99 // necessarily the version of the library built as a shared object if
100 // versions are inadvertently mixed and matched.
101 #define CRYPTOPP_MAJOR 8
102 #define CRYPTOPP_MINOR 2
103 #define CRYPTOPP_REVISION 0
104 #define CRYPTOPP_VERSION 820
105 
106 // Define this if you want to set a prefix for TestData/ and TestVectors/
107 // Be sure to add the trailing slash since its simple concatenation.
108 // After https://github.com/weidai11/cryptopp/issues/760 the library
109 // should find the test vectors and data without much effort. It
110 // will search in "./" and "$ORIGIN/../share/cryptopp" automatically.
111 #ifndef CRYPTOPP_DATA_DIR
112 # define CRYPTOPP_DATA_DIR ""
113 #endif
114 
115 // Define this to disable the test suite from searching for test
116 // vectors and data in "./" and "$ORIGIN/../share/cryptopp". The
117 // library will still search in CRYPTOPP_DATA_DIR, regardless.
118 // Some distros may want to disable this feature. Also see
119 // https://github.com/weidai11/cryptopp/issues/760
120 // #ifndef CRYPTOPP_DISABLE_DATA_DIR_SEARCH
121 // # define CRYPTOPP_DISABLE_DATA_DIR_SEARCH
122 // #endif
123 
124 // Define this if you want or need the library's memcpy_s and memmove_s.
125 // See http://github.com/weidai11/cryptopp/issues/28.
126 // #if !defined(CRYPTOPP_WANT_SECURE_LIB)
127 // # define CRYPTOPP_WANT_SECURE_LIB
128 // #endif
129 
130 // File system code to write to GZIP archive.
131 // http://www.gzip.org/format.txt
132 #if !defined(GZIP_OS_CODE)
133 # if defined(__macintosh__)
134 # define GZIP_OS_CODE 7
135 # elif defined(__unix__) || defined(__linux__)
136 # define GZIP_OS_CODE 3
137 # else
138 # define GZIP_OS_CODE 0
139 # endif
140 #endif
141 
142 // Try this if your CPU has 256K internal cache or a slow multiply instruction
143 // and you want a (possibly) faster IDEA implementation using log tables
144 // #define IDEA_LARGECACHE
145 
146 // Define this if, for the linear congruential RNG, you want to use
147 // the original constants as specified in S.K. Park and K.W. Miller's
148 // CACM paper.
149 // #define LCRNG_ORIGINAL_NUMBERS
150 
151 // Define this if you want Integer's operator<< to honor std::showbase (and
152 // std::noshowbase). If defined, Integer will use a suffix of 'b', 'o', 'h'
153 // or '.' (the last for decimal) when std::showbase is in effect. If
154 // std::noshowbase is set, then the suffix is not added to the Integer. If
155 // not defined, existing behavior is preserved and Integer will use a suffix
156 // of 'b', 'o', 'h' or '.' (the last for decimal).
157 // #define CRYPTOPP_USE_STD_SHOWBASE
158 
159 // Define this if ARMv8 shifts are slow. ARM Cortex-A53 and Cortex-A57 shift
160 // operation perform poorly, so NEON and ASIMD code that relies on shifts
161 // or rotates often performs worse than C/C++ code. Also see
162 // http://github.com/weidai11/cryptopp/issues/367.
163 #define CRYPTOPP_SLOW_ARMV8_SHIFT 1
164 
165 // Define this if you want to decouple AlgorithmParameters and Integer
166 // The decoupling should make it easier for the linker to remove Integer
167 // related code for those who do not need Integer, and avoid a potential
168 // race during AssignIntToInteger pointer initialization. Also
169 // see http://github.com/weidai11/cryptopp/issues/389.
170 // #define CRYPTOPP_NO_ASSIGN_TO_INTEGER
171 
172 // set the name of Rijndael cipher, was "Rijndael" before version 5.3
173 #define CRYPTOPP_RIJNDAEL_NAME "AES"
174 
175 // CRYPTOPP_DEBUG enables the library's CRYPTOPP_ASSERT. CRYPTOPP_ASSERT
176 // raises a SIGTRAP (Unix) or calls DebugBreak() (Windows). CRYPTOPP_ASSERT
177 // is only in effect when CRYPTOPP_DEBUG, DEBUG or _DEBUG is defined. Unlike
178 // Posix assert, CRYPTOPP_ASSERT is not affected by NDEBUG (or failure to
179 // define it).
180 // Also see http://github.com/weidai11/cryptopp/issues/277, CVE-2016-7420
181 #if (defined(DEBUG) || defined(_DEBUG)) && !defined(CRYPTOPP_DEBUG)
182 # define CRYPTOPP_DEBUG 1
183 #endif
184 
185 // ***************** Important Settings Again ********************
186 // But the defaults should be ok.
187 
188 // namespace support is now required
189 #ifdef NO_NAMESPACE
190 # error namespace support is now required
191 #endif
192 
193 #ifdef CRYPTOPP_DOXYGEN_PROCESSING
194 // Document the namespce exists. Put it here before CryptoPP is undefined below.
195 /// \namespace CryptoPP
196 /// \brief Crypto++ library namespace
197 /// \details Nearly all classes are located in the CryptoPP namespace. Within
198 /// the namespace, there are two additional namespaces.
199 /// <ul>
200 /// <li>Name - namespace for names used with \p NameValuePairs and documented in argnames.h
201 /// <li>NaCl - namespace for NaCl library functions like crypto_box, crypto_box_open, crypto_sign, and crypto_sign_open
202 /// <li>Donna - namespace for curve25519 library operations. The name was selected due to use of Adam Langley's curve25519-donna.
203 /// <li>Test - namespace for testing and benchmarks classes
204 /// <li>Weak - namespace for weak and wounded algorithms, like ARC4, MD5 and Pananma
205 /// </ul>
206 namespace CryptoPP { }
207 // Bring in the symbols found in the weak namespace; and fold Weak1 into Weak
208 # define CRYPTOPP_ENABLE_NAMESPACE_WEAK 1
209 # define Weak1 Weak
210 // Avoid putting "CryptoPP::" in front of everything in Doxygen output
211 # define CryptoPP
212 # define NAMESPACE_BEGIN(x)
213 # define NAMESPACE_END
214 // Get Doxygen to generate better documentation for these typedefs
215 # define DOCUMENTED_TYPEDEF(x, y) class y : public x {};
216 // Make "protected" "private" so the functions and members are not documented
217 # define protected private
218 #else
219 # define NAMESPACE_BEGIN(x) namespace x {
220 # define NAMESPACE_END }
221 # define DOCUMENTED_TYPEDEF(x, y) typedef x y;
222 #endif
223 #define ANONYMOUS_NAMESPACE_BEGIN namespace {
224 #define ANONYMOUS_NAMESPACE_END }
225 #define USING_NAMESPACE(x) using namespace x;
226 #define DOCUMENTED_NAMESPACE_BEGIN(x) namespace x {
227 #define DOCUMENTED_NAMESPACE_END }
228 
229 // Originally in global namespace to avoid ambiguity with other byte typedefs.
230 // Moved to Crypto++ namespace due to C++17, std::byte and potential compile problems. Also see
231 // http://www.cryptopp.com/wiki/std::byte and http://github.com/weidai11/cryptopp/issues/442
232 // typedef unsigned char byte;
233 #define CRYPTOPP_NO_GLOBAL_BYTE 1
234 
235 NAMESPACE_BEGIN(CryptoPP)
236 
237 // Signed words added at Issue 609 for early versions of and Visual Studio and
238 // the NaCl gear. Also see https://github.com/weidai11/cryptopp/issues/609.
239 
240 typedef unsigned char byte;
241 typedef unsigned short word16;
242 typedef unsigned int word32;
243 
244 typedef signed char sbyte;
245 typedef signed short sword16;
246 typedef signed int sword32;
247 
248 #if defined(_MSC_VER) || defined(__BORLANDC__)
249  typedef signed __int64 sword64;
250  typedef unsigned __int64 word64;
251  #define SW64LIT(x) x##i64
252  #define W64LIT(x) x##ui64
253 #elif (_LP64 || __LP64__)
254  typedef signed long sword64;
255  typedef unsigned long word64;
256  #define SW64LIT(x) x##L
257  #define W64LIT(x) x##UL
258 #else
259  typedef signed long long sword64;
260  typedef unsigned long long word64;
261  #define SW64LIT(x) x##LL
262  #define W64LIT(x) x##ULL
263 #endif
264 
265 // define large word type, used for file offsets and such
266 typedef word64 lword;
267 const lword LWORD_MAX = W64LIT(0xffffffffffffffff);
268 
269 // It is OK to remove the hard stop below, but you are on your own.
270 // After building the library be sure to run self tests described
271 // https://www.cryptopp.com/wiki/Release_Process#Self_Tests
272 // Some relevant bug reports can be found at:
273 // * Clang: http://github.com/weidai11/cryptopp/issues/147
274 // * Native Client: https://github.com/weidai11/cryptopp/issues/719
275 #if (defined(_MSC_VER) && defined(__clang__))
276 # error: "Unsupported configuration"
277 #endif
278 
279 #ifdef __GNUC__
280  #define CRYPTOPP_GCC_VERSION (__GNUC__ * 10000 + __GNUC_MINOR__ * 100 + __GNUC_PATCHLEVEL__)
281 #endif
282 
283 #if defined(__xlc__) || defined(__xlC__)
284  #define CRYPTOPP_XLC_VERSION ((__xlC__ / 256) * 10000 + (__xlC__ % 256) * 100)
285 #endif
286 
287 // Apple and LLVM's Clang. Apple Clang version 7.0 roughly equals LLVM Clang version 3.7
288 #if defined(__clang__) && defined(__apple_build_version__)
289  #define CRYPTOPP_APPLE_CLANG_VERSION (__clang_major__ * 10000 + __clang_minor__ * 100 + __clang_patchlevel__)
290 #elif defined(__clang__)
291  #define CRYPTOPP_LLVM_CLANG_VERSION (__clang_major__ * 10000 + __clang_minor__ * 100 + __clang_patchlevel__)
292 #endif
293 
294 #ifdef _MSC_VER
295  #define CRYPTOPP_MSC_VERSION (_MSC_VER)
296 #endif
297 
298 // Need GCC 4.6/Clang 1.7/Apple Clang 2.0 or above due to "GCC diagnostic {push|pop}"
299 #if (CRYPTOPP_GCC_VERSION >= 40600) || (CRYPTOPP_LLVM_CLANG_VERSION >= 10700) || (CRYPTOPP_APPLE_CLANG_VERSION >= 20000)
300  #define CRYPTOPP_GCC_DIAGNOSTIC_AVAILABLE 1
301 #endif
302 
303 // define hword, word, and dword. these are used for multiprecision integer arithmetic
304 // Intel compiler won't have _umul128 until version 10.0. See http://softwarecommunity.intel.com/isn/Community/en-US/forums/thread/30231625.aspx
305 #if (defined(_MSC_VER) && (!defined(__INTEL_COMPILER) || __INTEL_COMPILER >= 1000) && (defined(_M_X64) || defined(_M_IA64))) || (defined(__DECCXX) && defined(__alpha__)) || (defined(__INTEL_COMPILER) && defined(__x86_64__)) || (defined(__SUNPRO_CC) && defined(__x86_64__))
306  typedef word32 hword;
307  typedef word64 word;
308 #else
309  #define CRYPTOPP_NATIVE_DWORD_AVAILABLE 1
310  #if defined(__alpha__) || defined(__ia64__) || defined(_ARCH_PPC64) || defined(__x86_64__) || defined(__mips64) || defined(__sparc64__)
311  #if ((CRYPTOPP_GCC_VERSION >= 30400) || (CRYPTOPP_LLVM_CLANG_VERSION >= 30000) || (CRYPTOPP_APPLE_CLANG_VERSION >= 40300)) && (__SIZEOF_INT128__ >= 16)
312  // GCC 4.0.1 on MacOS X is missing __umodti3 and __udivti3
313  // GCC 4.8.3 and bad uint128_t ops on PPC64/POWER7 (Issue 421)
314  // mode(TI) division broken on amd64 with GCC earlier than GCC 3.4
315  typedef word32 hword;
316  typedef word64 word;
317  typedef __uint128_t dword;
318  typedef __uint128_t word128;
319  #define CRYPTOPP_WORD128_AVAILABLE 1
320  #else
321  // if we're here, it means we're on a 64-bit CPU but we don't have a way to obtain 128-bit multiplication results
322  typedef word16 hword;
323  typedef word32 word;
324  typedef word64 dword;
325  #endif
326  #else
327  // being here means the native register size is probably 32 bits or less
328  #define CRYPTOPP_BOOL_SLOW_WORD64 1
329  typedef word16 hword;
330  typedef word32 word;
331  typedef word64 dword;
332  #endif
333 #endif
334 #ifndef CRYPTOPP_BOOL_SLOW_WORD64
335  #define CRYPTOPP_BOOL_SLOW_WORD64 0
336 #endif
337 
338 const unsigned int WORD_SIZE = sizeof(word);
339 const unsigned int WORD_BITS = WORD_SIZE * 8;
340 
341 NAMESPACE_END
342 
343 #ifndef CRYPTOPP_L1_CACHE_LINE_SIZE
344  // This should be a lower bound on the L1 cache line size. It's used for defense against timing attacks.
345  // Also see http://stackoverflow.com/questions/794632/programmatically-get-the-cache-line-size.
346  #if defined(_M_X64) || defined(__x86_64__) || defined(__arm64__) || defined(__aarch64__) || defined(__powerpc64__) || defined(_ARCH_PPC64)
347  #define CRYPTOPP_L1_CACHE_LINE_SIZE 64
348  #else
349  // L1 cache line size is 32 on Pentium III and earlier
350  #define CRYPTOPP_L1_CACHE_LINE_SIZE 32
351  #endif
352 #endif
353 
354 // Sun Studio Express 3 (December 2006) provides GCC-style attributes.
355 // IBM XL C/C++ alignment modifier per Optimization Guide, pp. 19-20.
356 // __IBM_ATTRIBUTES per XLC 12.1 AIX Compiler Manual, p. 473.
357 // CRYPTOPP_ALIGN_DATA may not be reliable on AIX.
358 #ifndef CRYPTOPP_ALIGN_DATA
359  #if defined(_MSC_VER)
360  #define CRYPTOPP_ALIGN_DATA(x) __declspec(align(x))
361  #elif defined(__GNUC__) || (__SUNPRO_CC >= 0x5100)
362  #define CRYPTOPP_ALIGN_DATA(x) __attribute__((aligned(x)))
363  #elif defined(__xlc__) || defined(__xlC__)
364  #define CRYPTOPP_ALIGN_DATA(x) __attribute__((aligned(x)))
365  #else
366  #define CRYPTOPP_ALIGN_DATA(x)
367  #endif
368 #endif
369 
370 // The section attribute attempts to initialize CPU flags to avoid Valgrind findings above -O1
371 #if ((defined(__MACH__) && defined(__APPLE__)) && ((CRYPTOPP_LLVM_CLANG_VERSION >= 30600) || (CRYPTOPP_APPLE_CLANG_VERSION >= 70100) || (CRYPTOPP_GCC_VERSION >= 40300)))
372  #define CRYPTOPP_SECTION_INIT __attribute__((section ("__DATA,__data")))
373 #elif (defined(__ELF__) && (CRYPTOPP_GCC_VERSION >= 40300))
374  #define CRYPTOPP_SECTION_INIT __attribute__((section ("nocommon")))
375 #elif defined(__ELF__) && (defined(__xlC__) || defined(__ibmxl__))
376  #define CRYPTOPP_SECTION_INIT __attribute__((section ("nocommon")))
377 #else
378  #define CRYPTOPP_SECTION_INIT
379 #endif
380 
381 #if defined(_MSC_VER) || defined(__fastcall)
382  #define CRYPTOPP_FASTCALL __fastcall
383 #else
384  #define CRYPTOPP_FASTCALL
385 #endif
386 
387 #ifdef _MSC_VER
388 #define CRYPTOPP_NO_VTABLE __declspec(novtable)
389 #else
390 #define CRYPTOPP_NO_VTABLE
391 #endif
392 
393 #ifdef _MSC_VER
394  // 4127: conditional expression is constant
395  // 4512: assignment operator not generated
396  // 4661: no suitable definition provided for explicit template instantiation request
397  // 4910: '__declspec(dllexport)' and 'extern' are incompatible on an explicit instantiation
398 # pragma warning(disable: 4127 4512 4661 4910)
399  // Security related, possible defects
400  // http://blogs.msdn.com/b/vcblog/archive/2010/12/14/off-by-default-compiler-warnings-in-visual-c.aspx
401 # pragma warning(once: 4191 4242 4263 4264 4266 4302 4826 4905 4906 4928)
402 #endif
403 
404 #ifdef __BORLANDC__
405 // 8037: non-const function called for const object. needed to work around BCB2006 bug
406 # pragma warn -8037
407 #endif
408 
409 // [GCC Bug 53431] "C++ preprocessor ignores #pragma GCC diagnostic". Clang honors it.
410 #if CRYPTOPP_GCC_DIAGNOSTIC_AVAILABLE
411 # pragma GCC diagnostic ignored "-Wunknown-pragmas"
412 # pragma GCC diagnostic ignored "-Wunused-function"
413 #endif
414 
415 // You may need to force include a C++ header on Android when using STLPort to ensure
416 // _STLPORT_VERSION is defined: CXXFLAGS="-DNDEBUG -g2 -O2 -std=c++11 -include iosfwd"
417 // TODO: Figure out C++17 and lack of std::uncaught_exception
418 #if (defined(_MSC_VER) && _MSC_VER <= 1300) || defined(__MWERKS__) || (defined(_STLPORT_VERSION) && ((_STLPORT_VERSION < 0x450) || defined(_STLP_NO_UNCAUGHT_EXCEPT_SUPPORT)))
419 #define CRYPTOPP_DISABLE_UNCAUGHT_EXCEPTION
420 #endif
421 
422 #ifndef CRYPTOPP_DISABLE_UNCAUGHT_EXCEPTION
423 #define CRYPTOPP_UNCAUGHT_EXCEPTION_AVAILABLE
424 #endif
425 
426 // ***************** Platform and CPU features ********************
427 
428 // Linux provides X32, which is 32-bit integers, longs and pointers on x86_64
429 // using the full x86_64 register set. Detect via __ILP32__
430 // (http://wiki.debian.org/X32Port). However, __ILP32__ shows up in more places
431 // than the System V ABI specs calls out, like on some Solaris installations
432 // and just about any 32-bit system with Clang.
433 #if (defined(__ILP32__) || defined(_ILP32)) && defined(__x86_64__)
434  #define CRYPTOPP_BOOL_X32 1
435 #endif
436 
437 // see http://predef.sourceforge.net/prearch.html
438 #if (defined(_M_IX86) || defined(__i386__) || defined(__i386) || defined(_X86_) || defined(__I86__) || defined(__INTEL__)) && !CRYPTOPP_BOOL_X32
439  #define CRYPTOPP_BOOL_X86 1
440 #endif
441 
442 #if (defined(_M_X64) || defined(__x86_64__)) && !CRYPTOPP_BOOL_X32
443  #define CRYPTOPP_BOOL_X64 1
444 #endif
445 
446 // Undo the ASM related defines due to X32.
447 #if CRYPTOPP_BOOL_X32
448 # undef CRYPTOPP_BOOL_X64
449 # undef CRYPTOPP_X64_ASM_AVAILABLE
450 # undef CRYPTOPP_X64_MASM_AVAILABLE
451 #endif
452 
453 // Microsoft added ARM64 define December 2017.
454 #if defined(__arm64__) || defined(__aarch32__) || defined(__aarch64__) || defined(_M_ARM64)
455  #define CRYPTOPP_BOOL_ARMV8 1
456 #elif defined(__arm__) || defined(_M_ARM)
457  #define CRYPTOPP_BOOL_ARM32 1
458 #endif
459 
460 // AltiVec and Power8 crypto
461 #if defined(__ppc64__) || defined(__powerpc64__) || defined(_ARCH_PPC64)
462  #define CRYPTOPP_BOOL_PPC64 1
463 #elif defined(__powerpc__) || defined(_ARCH_PPC)
464  #define CRYPTOPP_BOOL_PPC32 1
465 #endif
466 
467 // And MIPS. TODO: finish these defines
468 #if defined(__mips64__)
469  #define CRYPTOPP_BOOL_MIPS64 1
470 #elif defined(__mips__)
471  #define CRYPTOPP_BOOL_MIPS32 1
472 #endif
473 
474 #if defined(_MSC_VER) || defined(__BORLANDC__)
475 # define CRYPTOPP_MS_STYLE_INLINE_ASSEMBLY 1
476 #else
477 # define CRYPTOPP_GNU_STYLE_INLINE_ASSEMBLY 1
478 #endif
479 
480 // ***************** IA32 CPU features ********************
481 
482 #if (CRYPTOPP_BOOL_X86 || CRYPTOPP_BOOL_X32 || CRYPTOPP_BOOL_X64)
483 
484 // Apple Clang prior to 5.0 cannot handle SSE2
485 #if defined(CRYPTOPP_APPLE_CLANG_VERSION) && (CRYPTOPP_APPLE_CLANG_VERSION < 50000)
486 # define CRYPTOPP_DISABLE_ASM 1
487 #endif
488 
489 // Sun Studio 12.1 provides GCC inline assembly
490 // http://blogs.oracle.com/x86be/entry/gcc_style_asm_inlining_support
491 #if !defined(CRYPTOPP_DISABLE_ASM) && defined(__SUNPRO_CC) && (__SUNPRO_CC < 0x5100)
492 # define CRYPTOPP_DISABLE_ASM 1
493 #endif
494 
495 #if !defined(CRYPTOPP_DISABLE_ASM) && ((defined(_MSC_VER) && defined(_M_IX86)) || (defined(__GNUC__) && (defined(__i386__) || defined(__x86_64__))))
496  // C++Builder 2010 does not allow "call label" where label is defined within inline assembly
497  #define CRYPTOPP_X86_ASM_AVAILABLE 1
498 
499  #if !defined(CRYPTOPP_DISABLE_SSE2) && (defined(_MSC_VER) || CRYPTOPP_GCC_VERSION >= 30300 || defined(__SSE2__))
500  #define CRYPTOPP_SSE2_ASM_AVAILABLE 1
501  #endif
502 
503  #if !defined(CRYPTOPP_DISABLE_SSSE3) && (_MSC_VER >= 1500 || CRYPTOPP_GCC_VERSION >= 40300 || defined(__SSSE3__))
504  #define CRYPTOPP_SSSE3_ASM_AVAILABLE 1
505  #endif
506 #endif
507 
508 #if !defined(CRYPTOPP_DISABLE_ASM) && defined(_MSC_VER) && defined(_M_X64)
509  #define CRYPTOPP_X64_MASM_AVAILABLE 1
510 #endif
511 
512 #if !defined(CRYPTOPP_DISABLE_ASM) && defined(__GNUC__) && defined(__x86_64__)
513  #define CRYPTOPP_X64_ASM_AVAILABLE 1
514 #endif
515 
516 // 32-bit SunCC does not enable SSE2 by default.
517 #if !defined(CRYPTOPP_DISABLE_ASM) && (defined(_MSC_VER) || CRYPTOPP_GCC_VERSION >= 30300 || defined(__SSE2__) || (__SUNPRO_CC >= 0x5100))
518  #define CRYPTOPP_SSE2_INTRIN_AVAILABLE 1
519 #endif
520 
521 #if !defined(CRYPTOPP_DISABLE_ASM) && !defined(CRYPTOPP_DISABLE_SSSE3)
522 # if defined(__SSSE3__) || (_MSC_VER >= 1500) || \
523  (CRYPTOPP_GCC_VERSION >= 40300) || (__INTEL_COMPILER >= 1000) || (__SUNPRO_CC >= 0x5110) || \
524  (CRYPTOPP_LLVM_CLANG_VERSION >= 20300) || (CRYPTOPP_APPLE_CLANG_VERSION >= 40000)
525  #define CRYPTOPP_SSSE3_AVAILABLE 1
526 # endif
527 #endif
528 
529 // Intrinsics availible in GCC 4.3 (http://gcc.gnu.org/gcc-4.3/changes.html) and
530 // MSVC 2008 (http://msdn.microsoft.com/en-us/library/bb892950%28v=vs.90%29.aspx)
531 // SunCC could generate SSE4 at 12.1, but the intrinsics are missing until 12.4.
532 #if !defined(CRYPTOPP_DISABLE_SSE4) && defined(CRYPTOPP_SSSE3_AVAILABLE) && \
533  (defined(__SSE4_1__) || (CRYPTOPP_MSC_VERSION >= 1500) || \
534  (CRYPTOPP_GCC_VERSION >= 40300) || (__INTEL_COMPILER >= 1000) || (__SUNPRO_CC >= 0x5110) || \
535  (CRYPTOPP_LLVM_CLANG_VERSION >= 20300) || (CRYPTOPP_APPLE_CLANG_VERSION >= 40000))
536  #define CRYPTOPP_SSE41_AVAILABLE 1
537 #endif
538 
539 #if !defined(CRYPTOPP_DISABLE_SSE4) && defined(CRYPTOPP_SSSE3_AVAILABLE) && \
540  (defined(__SSE4_2__) || (CRYPTOPP_MSC_VERSION >= 1500) || (__SUNPRO_CC >= 0x5110) || \
541  (CRYPTOPP_GCC_VERSION >= 40300) || (__INTEL_COMPILER >= 1000) || \
542  (CRYPTOPP_LLVM_CLANG_VERSION >= 20300) || (CRYPTOPP_APPLE_CLANG_VERSION >= 40000))
543  #define CRYPTOPP_SSE42_AVAILABLE 1
544 #endif
545 
546 // Couple to CRYPTOPP_DISABLE_AESNI, but use CRYPTOPP_CLMUL_AVAILABLE so we can selectively
547 // disable for misbehaving platofrms and compilers, like Solaris or some Clang.
548 #if defined(CRYPTOPP_DISABLE_AESNI)
549  #define CRYPTOPP_DISABLE_CLMUL 1
550 #endif
551 
552 // Requires Sun Studio 12.3 (SunCC 0x5120) in theory.
553 #if !defined(CRYPTOPP_DISABLE_ASM) && !defined(CRYPTOPP_DISABLE_CLMUL) && defined(CRYPTOPP_SSE42_AVAILABLE) && \
554  (defined(__PCLMUL__) || (_MSC_FULL_VER >= 150030729) || (__SUNPRO_CC >= 0x5120) || \
555  (CRYPTOPP_GCC_VERSION >= 40300) || (__INTEL_COMPILER >= 1110) || \
556  (CRYPTOPP_LLVM_CLANG_VERSION >= 30200) || (CRYPTOPP_APPLE_CLANG_VERSION >= 40300))
557  #define CRYPTOPP_CLMUL_AVAILABLE 1
558 #endif
559 
560 // Requires Sun Studio 12.3 (SunCC 0x5120)
561 #if !defined(CRYPTOPP_DISABLE_ASM) && !defined(CRYPTOPP_DISABLE_AESNI) && defined(CRYPTOPP_SSE42_AVAILABLE) && \
562  (defined(__AES__) || (_MSC_FULL_VER >= 150030729) || (__SUNPRO_CC >= 0x5120) || \
563  (CRYPTOPP_GCC_VERSION >= 40300) || (__INTEL_COMPILER >= 1110) || \
564  (CRYPTOPP_LLVM_CLANG_VERSION >= 30200) || (CRYPTOPP_APPLE_CLANG_VERSION >= 40300))
565  #define CRYPTOPP_AESNI_AVAILABLE 1
566 #endif
567 
568 // Requires Binutils 2.24
569 #if !defined(CRYPTOPP_DISABLE_AVX) && defined(CRYPTOPP_SSE42_AVAILABLE) && \
570  (defined(__AVX2__) || (CRYPTOPP_MSC_VERSION >= 1800) || (__SUNPRO_CC >= 0x5130) || \
571  (CRYPTOPP_GCC_VERSION >= 40700) || (__INTEL_COMPILER >= 1400) || \
572  (CRYPTOPP_LLVM_CLANG_VERSION >= 30100) || (CRYPTOPP_APPLE_CLANG_VERSION >= 40600))
573 #define CRYPTOPP_AVX_AVAILABLE 1
574 #endif
575 
576 // Requires Binutils 2.24
577 #if !defined(CRYPTOPP_DISABLE_AVX2) && defined(CRYPTOPP_AVX_AVAILABLE) && \
578  (defined(__AVX2__) || (CRYPTOPP_MSC_VERSION >= 1800) || (__SUNPRO_CC >= 0x5130) || \
579  (CRYPTOPP_GCC_VERSION >= 40900) || (__INTEL_COMPILER >= 1400) || \
580  (CRYPTOPP_LLVM_CLANG_VERSION >= 30100) || (CRYPTOPP_APPLE_CLANG_VERSION >= 40600))
581 #define CRYPTOPP_AVX2_AVAILABLE 1
582 #endif
583 
584 // Guessing at SHA for SunCC. Its not in Sun Studio 12.6. Also see
585 // http://stackoverflow.com/questions/45872180/which-xarch-for-sha-extensions-on-solaris
586 #if !defined(CRYPTOPP_DISABLE_ASM) && !defined(CRYPTOPP_DISABLE_SHANI) && defined(CRYPTOPP_SSE42_AVAILABLE) && \
587  (defined(__SHA__) || (CRYPTOPP_MSC_VERSION >= 1900) || (__SUNPRO_CC >= 0x5160) || \
588  (CRYPTOPP_GCC_VERSION >= 40900) || (__INTEL_COMPILER >= 1300) || \
589  (CRYPTOPP_LLVM_CLANG_VERSION >= 30400) || (CRYPTOPP_APPLE_CLANG_VERSION >= 50100))
590  #define CRYPTOPP_SHANI_AVAILABLE 1
591 #endif
592 
593 // Fixup Android and SSE, Crypto. It may be enabled based on compiler version.
594 #if (defined(__ANDROID__) || defined(ANDROID))
595 # if (CRYPTOPP_BOOL_X86)
596 # undef CRYPTOPP_SSE41_AVAILABLE
597 # undef CRYPTOPP_SSE42_AVAILABLE
598 # undef CRYPTOPP_CLMUL_AVAILABLE
599 # undef CRYPTOPP_AESNI_AVAILABLE
600 # undef CRYPTOPP_SHANI_AVAILABLE
601 # endif
602 # if (CRYPTOPP_BOOL_X64)
603 # undef CRYPTOPP_CLMUL_AVAILABLE
604 # undef CRYPTOPP_AESNI_AVAILABLE
605 # undef CRYPTOPP_SHANI_AVAILABLE
606 # endif
607 #endif
608 
609 // Fixup for SunCC 12.1-12.4. Bad code generation in AES_Encrypt and friends.
610 #if defined(__SUNPRO_CC) && (__SUNPRO_CC <= 0x5130)
611 # undef CRYPTOPP_AESNI_AVAILABLE
612 #endif
613 
614 // Fixup for SunCC 12.1-12.6. Compiler crash on GCM_Reduce_CLMUL and friends.
615 // http://github.com/weidai11/cryptopp/issues/226
616 #if defined(__SUNPRO_CC) && (__SUNPRO_CC <= 0x5150)
617 # undef CRYPTOPP_CLMUL_AVAILABLE
618 #endif
619 
620 #endif // X86, X32, X64
621 
622 // ***************** ARM CPU features ********************
623 
624 #if (CRYPTOPP_BOOL_ARM32 || CRYPTOPP_BOOL_ARMV8)
625 
626 // We don't have an ARM big endian test rig. Disable
627 // ARM-BE ASM and instrinsics until we can test it.
628 #if (CRYPTOPP_BIG_ENDIAN)
629 # define CRYPTOPP_DISABLE_ASM 1
630 #endif
631 
632 // Requires ARMv7 and ACLE 1.0. -march=armv7-a or above must be present
633 // Requires GCC 4.3, Clang 2.8 or Visual Studio 2012
634 // Do not use APPLE_CLANG_VERSION; use __ARM_FEATURE_XXX instead.
635 #if !defined(CRYPTOPP_ARM_NEON_AVAILABLE) && !defined(CRYPTOPP_DISABLE_ASM)
636 # if defined(__arm__) || defined(__ARM_NEON) || defined(__ARM_FEATURE_NEON) || defined(_M_ARM)
637 # if (CRYPTOPP_GCC_VERSION >= 40300) || (CRYPTOPP_CLANG_VERSION >= 20800) || \
638  (CRYPTOPP_MSC_VERSION >= 1700)
639 # define CRYPTOPP_ARM_NEON_AVAILABLE 1
640 # endif // Compilers
641 # endif // Platforms
642 #endif
643 
644 // ARMv8 and ASIMD. -march=armv8-a or above must be present
645 // Requires GCC 4.8, Clang 3.3 or Visual Studio 2017
646 // Do not use APPLE_CLANG_VERSION; use __ARM_FEATURE_XXX instead.
647 #if !defined(CRYPTOPP_ARM_ASIMD_AVAILABLE) && !defined(CRYPTOPP_DISABLE_ASM)
648 # if defined(__aarch32__) || defined(__aarch64__) || defined(_M_ARM64)
649 # if defined(__ARM_NEON) || defined(__ARM_FEATURE_NEON) || defined(__ARM_FEATURE_ASIMD) || \
650  (CRYPTOPP_GCC_VERSION >= 40800) || (CRYPTOPP_CLANG_VERSION >= 30300) || \
651  (CRYPTOPP_MSC_VERSION >= 1916)
652 # define CRYPTOPP_ARM_NEON_AVAILABLE 1
653 # define CRYPTOPP_ARM_ASIMD_AVAILABLE 1
654 # endif // Compilers
655 # endif // Platforms
656 #endif
657 
658 // ARMv8 and ASIMD. -march=armv8-a+crc or above must be present
659 // Requires GCC 4.8, Clang 3.3 or Visual Studio 2017
660 // Do not use APPLE_CLANG_VERSION; use __ARM_FEATURE_XXX instead.
661 #if !defined(CRYPTOPP_ARM_CRC32_AVAILABLE) && !defined(CRYPTOPP_DISABLE_ASM)
662 # if defined(__aarch32__) || defined(__aarch64__) || defined(_M_ARM64)
663 # if defined(__ARM_FEATURE_CRC32) || (CRYPTOPP_GCC_VERSION >= 40800) || \
664  (CRYPTOPP_CLANG_VERSION >= 30300) || (CRYPTOPP_MSC_VERSION >= 1916)
665 # define CRYPTOPP_ARM_CRC32_AVAILABLE 1
666 # endif // Compilers
667 # endif // Platforms
668 #endif
669 
670 // ARMv8 and ASIMD. -march=armv8-a+crypto or above must be present
671 // Requires GCC 4.8, Clang 3.3 or Visual Studio 2017
672 // Do not use APPLE_CLANG_VERSION; use __ARM_FEATURE_XXX instead.
673 #if !defined(CRYPTOPP_ARM_PMULL_AVAILABLE) && !defined(CRYPTOPP_DISABLE_ASM)
674 # if defined(__aarch32__) || defined(__aarch64__) || defined(_M_ARM64)
675 # if defined(__ARM_FEATURE_CRYPTO) || (CRYPTOPP_GCC_VERSION >= 40800) || \
676  (CRYPTOPP_CLANG_VERSION >= 30300) || (CRYPTOPP_MSC_VERSION >= 1916)
677 # define CRYPTOPP_ARM_PMULL_AVAILABLE 1
678 # endif // Compilers
679 # endif // Platforms
680 #endif
681 
682 // ARMv8 and AES. -march=armv8-a+crypto or above must be present
683 // Requires GCC 4.8, Clang 3.3 or Visual Studio 2017
684 // Do not use APPLE_CLANG_VERSION; use __ARM_FEATURE_XXX instead.
685 #if !defined(CRYPTOPP_ARM_AES_AVAILABLE) && !defined(CRYPTOPP_DISABLE_ASM)
686 # if defined(__aarch32__) || defined(__aarch64__) || defined(_M_ARM64)
687 # if defined(__ARM_FEATURE_CRYPTO) || (CRYPTOPP_GCC_VERSION >= 40800) || \
688  (CRYPTOPP_CLANG_VERSION >= 30300) || (CRYPTOPP_MSC_VERSION >= 1910)
689 # define CRYPTOPP_ARM_AES_AVAILABLE 1
690 # endif // Compilers
691 # endif // Platforms
692 #endif
693 
694 // ARMv8 and SHA-1, SHA-256. -march=armv8-a+crypto or above must be present
695 // Requires GCC 4.8, Clang 3.3 or Visual Studio 2017
696 // Do not use APPLE_CLANG_VERSION; use __ARM_FEATURE_XXX instead.
697 #if !defined(CRYPTOPP_ARM_SHA_AVAILABLE) && !defined(CRYPTOPP_DISABLE_ASM)
698 # if defined(__aarch32__) || defined(__aarch64__) || defined(_M_ARM64)
699 # if defined(__ARM_FEATURE_CRYPTO) || (CRYPTOPP_GCC_VERSION >= 40800) || \
700  (CRYPTOPP_CLANG_VERSION >= 30300) || (CRYPTOPP_MSC_VERSION >= 1916)
701 # define CRYPTOPP_ARM_SHA1_AVAILABLE 1
702 # define CRYPTOPP_ARM_SHA2_AVAILABLE 1
703 # endif // Compilers
704 # endif // Platforms
705 #endif
706 
707 // ARMv8 and SHA-512, SHA-3. -march=armv8.4-a+crypto or above must be present
708 // Requires GCC 8.0, Clang 6.0 or Visual Studio 2021???
709 // Do not use APPLE_CLANG_VERSION; use __ARM_FEATURE_XXX instead.
710 #if !defined(CRYPTOPP_ARM_SHA_AVAILABLE) && !defined(CRYPTOPP_DISABLE_ASM)
711 # if defined(__aarch32__) || defined(__aarch64__) || defined(_M_ARM64)
712 # if defined(__ARM_FEATURE_SHA3) || (CRYPTOPP_GCC_VERSION >= 80000) || \
713  (CRYPTOPP_MSC_VERSION >= 5000)
714 # define CRYPTOPP_ARM_SHA512_AVAILABLE 1
715 # define CRYPTOPP_ARM_SHA3_AVAILABLE 1
716 # endif // Compilers
717 # endif // Platforms
718 #endif
719 
720 // ARMv8 and SM3, SM4. -march=armv8.4-a+crypto or above must be present
721 // Requires GCC 8.0, Clang 6.0 or Visual Studio 2021???
722 // Do not use APPLE_CLANG_VERSION; use __ARM_FEATURE_XXX instead.
723 #if !defined(CRYPTOPP_ARM_SM3_AVAILABLE) && !defined(CRYPTOPP_DISABLE_ASM)
724 # if defined(__aarch32__) || defined(__aarch64__) || defined(_M_ARM64)
725 # if defined(__ARM_FEATURE_SM3) || (CRYPTOPP_GCC_VERSION >= 80000) || \
726  (CRYPTOPP_MSC_VERSION >= 5000)
727 # define CRYPTOPP_ARM_SM3_AVAILABLE 1
728 # define CRYPTOPP_ARM_SM4_AVAILABLE 1
729 # endif // Compilers
730 # endif // Platforms
731 #endif
732 
733 // Limit the <arm_acle.h> include.
734 #if !defined(CRYPTOPP_ARM_ACLE_AVAILABLE)
735 # if defined(__aarch32__) || defined(__aarch64__) || (__ARM_ARCH >= 8) || defined(__ARM_ACLE)
736 # if !defined(__ANDROID__) && !defined(ANDROID) && !defined(__APPLE__)
737 # define CRYPTOPP_ARM_ACLE_AVAILABLE 1
738 # endif
739 # endif
740 #endif
741 
742 // Fixup Apple Clang and PMULL. Apple defines __ARM_FEATURE_CRYPTO for Xcode 6
743 // but does not provide PMULL. TODO: determine when PMULL is available.
744 #if defined(CRYPTOPP_APPLE_CLANG_VERSION) && (CRYPTOPP_APPLE_CLANG_VERSION < 70000)
745 # undef CRYPTOPP_ARM_PMULL_AVAILABLE
746 #endif
747 
748 // Fixup Android and CRC32. It may be enabled based on compiler version.
749 #if (defined(__ANDROID__) || defined(ANDROID)) && !defined(__ARM_FEATURE_CRC32)
750 # undef CRYPTOPP_ARM_CRC32_AVAILABLE
751 #endif
752 
753 // Fixup Android and Crypto. It may be enabled based on compiler version.
754 #if (defined(__ANDROID__) || defined(ANDROID)) && !defined(__ARM_FEATURE_CRYPTO)
755 # undef CRYPTOPP_ARM_PMULL_AVAILABLE
756 # undef CRYPTOPP_ARM_AES_AVAILABLE
757 # undef CRYPTOPP_ARM_SHA1_AVAILABLE
758 # undef CRYPTOPP_ARM_SHA2_AVAILABLE
759 #endif
760 
761 // Cryptogams offers an ARM asm AES implementation. Crypto++ does
762 // not provide an asm implementation. The Cryptogams implementation
763 // is about 2x faster than C/C++. Define this to use the Cryptogams
764 // AES implementation on GNU Linux systems. When defined, Crypto++
765 // will use aes_armv4.S. LLVM miscompiles aes_armv4.S so disable
766 // under Clang. See https://bugs.llvm.org/show_bug.cgi?id=38133.
767 #if !defined(CRYPTOPP_DISABLE_ASM) && defined(__arm__)
768 # if defined(__GNUC__) && !defined(__clang__)
769 # define CRYPTOGAMS_ARM_AES 1
770 # endif
771 #endif
772 
773 #endif // ARM32, ARM64
774 
775 // ***************** AltiVec and Power8 ********************
776 
777 #if (CRYPTOPP_BOOL_PPC32 || CRYPTOPP_BOOL_PPC64)
778 
779 #if defined(CRYPTOPP_DISABLE_ALTIVEC) || defined(CRYPTOPP_DISABLE_ASM)
780 # undef CRYPTOPP_DISABLE_ALTIVEC
781 # undef CRYPTOPP_DISABLE_POWER7
782 # undef CRYPTOPP_DISABLE_POWER8
783 # undef CRYPTOPP_DISABLE_POWER9
784 # define CRYPTOPP_DISABLE_ALTIVEC 1
785 # define CRYPTOPP_DISABLE_POWER7 1
786 # define CRYPTOPP_DISABLE_POWER8 1
787 # define CRYPTOPP_DISABLE_POWER9 1
788 #endif
789 
790 // An old Apple G5 with GCC 4.01 has AltiVec, but its only Power4 or so.
791 #if !defined(CRYPTOPP_ALTIVEC_AVAILABLE) && !defined(CRYPTOPP_DISABLE_ALTIVEC)
792 # if defined(_ARCH_PWR4) || defined(__ALTIVEC__) || \
793  (CRYPTOPP_XLC_VERSION >= 100000) || (CRYPTOPP_GCC_VERSION >= 40001) || \
794  (CRYPTOPP_CLANG_VERSION >= 20900)
795 # define CRYPTOPP_ALTIVEC_AVAILABLE 1
796 # endif
797 #endif
798 
799 // We need Power7 for unaligned loads and stores
800 #if !defined(CRYPTOPP_POWER7_AVAILABLE) && !defined(CRYPTOPP_DISABLE_POWER7) && defined(CRYPTOPP_ALTIVEC_AVAILABLE)
801 # if defined(_ARCH_PWR7) || (CRYPTOPP_XLC_VERSION >= 100000) || \
802  (CRYPTOPP_GCC_VERSION >= 40100) || (CRYPTOPP_CLANG_VERSION >= 30100)
803 # define CRYPTOPP_POWER7_AVAILABLE 1
804 # endif
805 #endif
806 
807 // We need Power8 for in-core crypto and 64-bit vector types
808 #if !defined(CRYPTOPP_POWER8_AVAILABLE) && !defined(CRYPTOPP_DISABLE_POWER8) && defined(CRYPTOPP_POWER7_AVAILABLE)
809 # if defined(_ARCH_PWR8) || (CRYPTOPP_XLC_VERSION >= 130000) || \
810  (CRYPTOPP_GCC_VERSION >= 40800) || (CRYPTOPP_CLANG_VERSION >= 70000)
811 # define CRYPTOPP_POWER8_AVAILABLE 1
812 # endif
813 #endif
814 
815 // Power9 for random numbers
816 #if !defined(CRYPTOPP_POWER9_AVAILABLE) && !defined(CRYPTOPP_DISABLE_POWER9) && defined(CRYPTOPP_POWER8_AVAILABLE)
817 # if defined(_ARCH_PWR9) || (CRYPTOPP_XLC_VERSION >= 130200) || \
818  (CRYPTOPP_GCC_VERSION >= 70000) || (CRYPTOPP_CLANG_VERSION >= 80000)
819 # define CRYPTOPP_POWER9_AVAILABLE 1
820 # endif
821 #endif
822 
823 #if !defined(CRYPTOPP_POWER8_AES_AVAILABLE) && !defined(CRYPTOPP_DISABLE_POWER8_AES) && defined(CRYPTOPP_POWER8_AVAILABLE)
824 # if defined(__CRYPTO__) || defined(_ARCH_PWR8) || (CRYPTOPP_XLC_VERSION >= 130000) || \
825  (CRYPTOPP_GCC_VERSION >= 40800) || (CRYPTOPP_CLANG_VERSION >= 70000)
826 //# define CRYPTOPP_POWER8_CRC_AVAILABLE 1
827 # define CRYPTOPP_POWER8_AES_AVAILABLE 1
828 # define CRYPTOPP_POWER8_VMULL_AVAILABLE 1
829 # define CRYPTOPP_POWER8_SHA_AVAILABLE 1
830 # endif
831 #endif
832 
833 #endif // PPC32, PPC64
834 
835 // ***************** Miscellaneous ********************
836 
837 // Nearly all Intel's and AMD's have SSE. Enable it independent of SSE ASM and intrinscs
838 #if (CRYPTOPP_BOOL_X86 || CRYPTOPP_BOOL_X32 || CRYPTOPP_BOOL_X64 || CRYPTOPP_BOOL_PPC32 || CRYPTOPP_BOOL_PPC64) && !defined(CRYPTOPP_DISABLE_ASM)
839  #define CRYPTOPP_BOOL_ALIGN16 1
840 #else
841  #define CRYPTOPP_BOOL_ALIGN16 0
842 #endif
843 
844 // How to allocate 16-byte aligned memory (for SSE2)
845 // posix_memalign see https://forum.kde.org/viewtopic.php?p=66274
846 #if defined(_MSC_VER)
847  #define CRYPTOPP_MM_MALLOC_AVAILABLE
848 #elif defined(__linux__) || defined(__sun__) || defined(__CYGWIN__)
849  #define CRYPTOPP_MEMALIGN_AVAILABLE
850 #elif defined(__APPLE__) || defined(__NetBSD__) || defined(__OpenBSD__) || defined(__DragonFly__)
851  #define CRYPTOPP_MALLOC_ALIGNMENT_IS_16
852 #elif (defined(_GNU_SOURCE) || ((_XOPEN_SOURCE + 0) >= 600)) && (_POSIX_ADVISORY_INFO > 0)
853  #define CRYPTOPP_POSIX_MEMALIGN_AVAILABLE
854 #else
855  #define CRYPTOPP_NO_ALIGNED_ALLOC
856 #endif
857 
858 // how to disable inlining
859 #if defined(_MSC_VER)
860 # define CRYPTOPP_NOINLINE_DOTDOTDOT
861 # define CRYPTOPP_NOINLINE __declspec(noinline)
862 #elif defined(__xlc__) || defined(__xlC__) || defined(__ibmxl__)
863 # define CRYPTOPP_NOINLINE_DOTDOTDOT ...
864 # define CRYPTOPP_NOINLINE __attribute__((noinline))
865 #elif defined(__GNUC__)
866 # define CRYPTOPP_NOINLINE_DOTDOTDOT
867 # define CRYPTOPP_NOINLINE __attribute__((noinline))
868 #else
869 # define CRYPTOPP_NOINLINE_DOTDOTDOT ...
870 # define CRYPTOPP_NOINLINE
871 #endif
872 
873 // How to declare class constants
874 #if defined(CRYPTOPP_DOXYGEN_PROCESSING) || defined(__BORLANDC__)
875 # define CRYPTOPP_CONSTANT(x) static const int x;
876 #else
877 # define CRYPTOPP_CONSTANT(x) enum {x};
878 #endif
879 
880 // How to disable CPU feature probing. We determine machine
881 // capabilities by performing an os/platform *query* first,
882 // like getauxv(). If the *query* fails, we move onto a
883 // cpu *probe*. The cpu *probe* tries to exeute an instruction
884 // and then catches a SIGILL on Linux or the exception
885 // EXCEPTION_ILLEGAL_INSTRUCTION on Windows. Some OSes
886 // fail to hangle a SIGILL gracefully, like Apple OSes. Apple
887 // machines corrupt memory and variables around the probe.
888 #if defined(__APPLE__)
889 # define CRYPTOPP_NO_CPU_FEATURE_PROBES 1
890 #endif
891 
892 // ***************** Initialization and Constructor priorities ********************
893 
894 // CRYPTOPP_INIT_PRIORITY attempts to manage initialization of C++ static objects.
895 // Under GCC, the library uses init_priority attribute in the range
896 // [CRYPTOPP_INIT_PRIORITY, CRYPTOPP_INIT_PRIORITY+100]. Under Windows,
897 // CRYPTOPP_INIT_PRIORITY enlists "#pragma init_seg(lib)". The platforms
898 // with gaps are Apple and Sun because they require linker scripts. Apple and
899 // Sun will use the library's Singletons to initialize and acquire resources.
900 // Also see http://cryptopp.com/wiki/Static_Initialization_Order_Fiasco
901 #ifndef CRYPTOPP_INIT_PRIORITY
902 # define CRYPTOPP_INIT_PRIORITY 250
903 #endif
904 
905 // CRYPTOPP_USER_PRIORITY is for other libraries and user code that is using Crypto++
906 // and managing C++ static object creation. It is guaranteed not to conflict with
907 // values used by (or would be used by) the Crypto++ library.
908 #ifndef CRYPTOPP_USER_PRIORITY
909 # define CRYPTOPP_USER_PRIORITY (CRYPTOPP_INIT_PRIORITY+101)
910 #endif
911 
912 // Most platforms allow us to specify when to create C++ objects. Apple and Sun do not.
913 #if (CRYPTOPP_INIT_PRIORITY > 0) && !(defined(NO_OS_DEPENDENCE) || defined(__APPLE__) || defined(__sun__))
914 # if (CRYPTOPP_GCC_VERSION >= 30000) || (CRYPTOPP_LLVM_CLANG_VERSION >= 20900) || (_INTEL_COMPILER >= 800)
915 # define HAVE_GCC_INIT_PRIORITY 1
916 # elif (CRYPTOPP_MSC_VERSION >= 1310)
917 # define HAVE_MSC_INIT_PRIORITY 1
918 # elif defined(__xlc__) || defined(__xlC__) || defined(__ibmxl__)
919 # define HAVE_XLC_INIT_PRIORITY 1
920 # endif
921 #endif // CRYPTOPP_INIT_PRIORITY, NO_OS_DEPENDENCE, Apple, Sun
922 
923 // ***************** determine availability of OS features ********************
924 
925 #ifndef NO_OS_DEPENDENCE
926 
927 #if defined(_WIN32) || defined(_WIN64) || defined(__CYGWIN__)
928 #define CRYPTOPP_WIN32_AVAILABLE
929 #endif
930 
931 #if defined(__unix__) || defined(__MACH__) || defined(__NetBSD__) || defined(__sun)
932 #define CRYPTOPP_UNIX_AVAILABLE
933 #endif
934 
935 #if defined(__FreeBSD__) || defined(__NetBSD__) || defined(__OpenBSD__) || defined(__DragonFly__)
936 #define CRYPTOPP_BSD_AVAILABLE
937 #endif
938 
939 #if defined(CRYPTOPP_WIN32_AVAILABLE) || defined(CRYPTOPP_UNIX_AVAILABLE)
940 # define HIGHRES_TIMER_AVAILABLE
941 #endif
942 
943 #ifdef CRYPTOPP_WIN32_AVAILABLE
944 # if !defined(WINAPI_FAMILY)
945 # define THREAD_TIMER_AVAILABLE
946 # elif defined(WINAPI_FAMILY)
947 # if (WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP))
948 # define THREAD_TIMER_AVAILABLE
949 # endif
950 # endif
951 #endif
952 
953 #if defined(CRYPTOPP_UNIX_AVAILABLE) || defined(CRYPTOPP_DOXYGEN_PROCESSING)
954 # define NONBLOCKING_RNG_AVAILABLE
955 # define BLOCKING_RNG_AVAILABLE
956 # define OS_RNG_AVAILABLE
957 #endif
958 
959 // Cygwin/Newlib requires _XOPEN_SOURCE=600
960 #if defined(CRYPTOPP_UNIX_AVAILABLE)
961 # define UNIX_SIGNALS_AVAILABLE 1
962 #endif
963 
964 #ifdef CRYPTOPP_WIN32_AVAILABLE
965 # if !defined(WINAPI_FAMILY)
966 # define NONBLOCKING_RNG_AVAILABLE
967 # define OS_RNG_AVAILABLE
968 # elif defined(WINAPI_FAMILY)
969 # if (WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP))
970 # define NONBLOCKING_RNG_AVAILABLE
971 # define OS_RNG_AVAILABLE
972 # elif !(WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP))
973 # if ((WINVER >= 0x0A00 /*_WIN32_WINNT_WIN10*/) || (_WIN32_WINNT >= 0x0A00 /*_WIN32_WINNT_WIN10*/))
974 # define NONBLOCKING_RNG_AVAILABLE
975 # define OS_RNG_AVAILABLE
976 # endif
977 # endif
978 # endif
979 #endif
980 
981 #endif // NO_OS_DEPENDENCE
982 
983 // ***************** DLL related ********************
984 
985 #if defined(CRYPTOPP_WIN32_AVAILABLE) && !defined(CRYPTOPP_DOXYGEN_PROCESSING)
986 
987 #ifdef CRYPTOPP_EXPORTS
988 #define CRYPTOPP_IS_DLL
989 #define CRYPTOPP_DLL __declspec(dllexport)
990 #elif defined(CRYPTOPP_IMPORTS)
991 #define CRYPTOPP_IS_DLL
992 #define CRYPTOPP_DLL __declspec(dllimport)
993 #else
994 #define CRYPTOPP_DLL
995 #endif
996 
997 // C++ makes const internal linkage
998 #define CRYPTOPP_TABLE extern
999 #define CRYPTOPP_API __cdecl
1000 
1001 #else // not CRYPTOPP_WIN32_AVAILABLE
1002 
1003 // C++ makes const internal linkage
1004 #define CRYPTOPP_TABLE extern
1005 #define CRYPTOPP_DLL
1006 #define CRYPTOPP_API
1007 
1008 #endif // CRYPTOPP_WIN32_AVAILABLE
1009 
1010 #if defined(__MWERKS__)
1011 #define CRYPTOPP_EXTERN_DLL_TEMPLATE_CLASS extern class CRYPTOPP_DLL
1012 #elif defined(__BORLANDC__) || defined(__SUNPRO_CC)
1013 #define CRYPTOPP_EXTERN_DLL_TEMPLATE_CLASS template class CRYPTOPP_DLL
1014 #else
1015 #define CRYPTOPP_EXTERN_DLL_TEMPLATE_CLASS extern template class CRYPTOPP_DLL
1016 #endif
1017 
1018 #if defined(CRYPTOPP_MANUALLY_INSTANTIATE_TEMPLATES) && !defined(CRYPTOPP_IMPORTS)
1019 #define CRYPTOPP_DLL_TEMPLATE_CLASS template class CRYPTOPP_DLL
1020 #else
1021 #define CRYPTOPP_DLL_TEMPLATE_CLASS CRYPTOPP_EXTERN_DLL_TEMPLATE_CLASS
1022 #endif
1023 
1024 #if defined(__MWERKS__)
1025 #define CRYPTOPP_EXTERN_STATIC_TEMPLATE_CLASS extern class
1026 #elif defined(__BORLANDC__) || defined(__SUNPRO_CC)
1027 #define CRYPTOPP_EXTERN_STATIC_TEMPLATE_CLASS template class
1028 #else
1029 #define CRYPTOPP_EXTERN_STATIC_TEMPLATE_CLASS extern template class
1030 #endif
1031 
1032 #if defined(CRYPTOPP_MANUALLY_INSTANTIATE_TEMPLATES) && !defined(CRYPTOPP_EXPORTS)
1033 #define CRYPTOPP_STATIC_TEMPLATE_CLASS template class
1034 #else
1035 #define CRYPTOPP_STATIC_TEMPLATE_CLASS CRYPTOPP_EXTERN_STATIC_TEMPLATE_CLASS
1036 #endif
1037 
1038 // ************** Unused variable ***************
1039 
1040 // Portable way to suppress warnings.
1041 // Moved from misc.h due to circular depenedencies.
1042 #define CRYPTOPP_UNUSED(x) ((void)(x))
1043 
1044 // ************** Deprecated ***************
1045 
1046 #if (CRYPTOPP_GCC_VERSION >= 40500) || (CRYPTOPP_LLVM_CLANG_VERSION >= 20800) || (CRYPTOPP_APPLE_CLANG_VERSION >= 40200)
1047 # define CRYPTOPP_DEPRECATED(msg) __attribute__((deprecated (msg)))
1048 #elif (CRYPTOPP_GCC_VERSION)
1049 # define CRYPTOPP_DEPRECATED(msg) __attribute__((deprecated))
1050 #else
1051 # define CRYPTOPP_DEPRECATED(msg)
1052 #endif
1053 
1054 // ***************** C++11 related ********************
1055 
1056 // Visual Studio began at VS2010, http://msdn.microsoft.com/en-us/library/hh567368%28v=vs.110%29.aspx
1057 // and https://docs.microsoft.com/en-us/cpp/visual-cpp-language-conformance .
1058 // Intel, http://software.intel.com/en-us/articles/c0x-features-supported-by-intel-c-compiler
1059 // GCC, http://gcc.gnu.org/projects/cxx0x.html
1060 // Clang, http://clang.llvm.org/cxx_status.html
1061 
1062 // Compatibility with non-clang compilers.
1063 #ifndef __has_feature
1064 # define __has_feature(x) 0
1065 #endif
1066 
1067 #if !defined(CRYPTOPP_NO_CXX11)
1068 # if ((_MSC_VER >= 1600) || (__cplusplus >= 201103L)) && !defined(_STLPORT_VERSION)
1069 # define CRYPTOPP_CXX11 1
1070 # endif
1071 #endif
1072 
1073 // Hack ahead. Apple's standard library does not have C++'s unique_ptr in C++11. We can't
1074 // test for unique_ptr directly because some of the non-Apple Clangs on OS X fail the same
1075 // way. However, modern standard libraries have <forward_list>, so we test for it instead.
1076 // Thanks to Jonathan Wakely for devising the clever test for modern/ancient versions.
1077 // TODO: test under Xcode 3, where g++ is really g++.
1078 #if defined(__APPLE__) && defined(__clang__)
1079 # if !(defined(__has_include) && __has_include(<forward_list>))
1080 # undef CRYPTOPP_CXX11
1081 # endif
1082 #endif
1083 
1084 // C++11 or C++14 is available
1085 #if defined(CRYPTOPP_CXX11)
1086 
1087 // atomics: MS at VS2012 (17.00); GCC at 4.4; Clang at 3.1/3.2; Intel 13.0; SunCC 5.14.
1088 #if (CRYPTOPP_MSC_VERSION >= 1700) || __has_feature(cxx_atomic) || \
1089  (__INTEL_COMPILER >= 1300) || (CRYPTOPP_GCC_VERSION >= 40400) || (__SUNPRO_CC >= 0x5140)
1090 # define CRYPTOPP_CXX11_ATOMICS 1
1091 #endif // atomics
1092 
1093 // synchronization: MS at VS2012 (17.00); GCC at 4.4; Clang at 3.3; Xcode 5.0; Intel 12.0; SunCC 5.13.
1094 // TODO: verify Clang and Intel versions; find __has_feature(x) extension for Clang
1095 #if (CRYPTOPP_MSC_VERSION >= 1700) || (CRYPTOPP_LLVM_CLANG_VERSION >= 30300) || \
1096  (CRYPTOPP_APPLE_CLANG_VERSION >= 50000) || (__INTEL_COMPILER >= 1200) || \
1097  (CRYPTOPP_GCC_VERSION >= 40400) || (__SUNPRO_CC >= 0x5130)
1098 // Hack ahead. New GCC compilers like GCC 6 on AIX 7.0 or earlier as well as original MinGW
1099 // don't have the synchronization gear. However, Wakely's test used for Apple does not work
1100 // on the GCC/AIX combination. Another twist is we need other stuff from C++11,
1101 // like no-except destructors. Dumping preprocessors shows the following may
1102 // apply: http://stackoverflow.com/q/14191566/608639.
1103 # include <cstddef>
1104 # if !defined(__GLIBCXX__) || defined(_GLIBCXX_HAS_GTHREADS)
1105 # define CRYPTOPP_CXX11_SYNCHRONIZATION 1
1106 # endif
1107 #endif // synchronization
1108 
1109 // Dynamic Initialization and Destruction with Concurrency ("Magic Statics")
1110 // MS at VS2015 with Vista (19.00); GCC at 4.3; LLVM Clang at 2.9; Apple Clang at 4.0; Intel 11.1; SunCC 5.13.
1111 // Microsoft's implementation only works for Vista and above, so its further
1112 // limited. http://connect.microsoft.com/VisualStudio/feedback/details/1789709
1113 #if (CRYPTOPP_MSC_VERSION >= 1900) && ((WINVER >= 0x0600) || (_WIN32_WINNT >= 0x0600)) || \
1114  (CRYPTOPP_LLVM_CLANG_VERSION >= 20900) || (CRYPTOPP_APPLE_CLANG_VERSION >= 40000) || \
1115  (__INTEL_COMPILER >= 1110) || (CRYPTOPP_GCC_VERSION >= 40300) || (__SUNPRO_CC >= 0x5130)
1116 # define CRYPTOPP_CXX11_DYNAMIC_INIT 1
1117 #endif // Dynamic Initialization compilers
1118 
1119 // alignof/alignas: MS at VS2015 (19.00); GCC at 4.8; Clang at 3.0; Intel 15.0; SunCC 5.13.
1120 #if (CRYPTOPP_MSC_VERSION >= 1900) || __has_feature(cxx_alignas) || \
1121  (__INTEL_COMPILER >= 1500) || (CRYPTOPP_GCC_VERSION >= 40800) || (__SUNPRO_CC >= 0x5130)
1122 # define CRYPTOPP_CXX11_ALIGNAS 1
1123 #endif // alignas
1124 
1125 // alignof: MS at VS2015 (19.00); GCC at 4.5; Clang at 2.9; Intel 15.0; SunCC 5.13.
1126 #if (CRYPTOPP_MSC_VERSION >= 1900) || __has_feature(cxx_alignof) || \
1127  (__INTEL_COMPILER >= 1500) || (CRYPTOPP_GCC_VERSION >= 40500) || (__SUNPRO_CC >= 0x5130)
1128 # define CRYPTOPP_CXX11_ALIGNOF 1
1129 #endif // alignof
1130 
1131 // lambdas: MS at VS2012 (17.00); GCC at 4.9; Clang at 3.3; Intel 12.0; SunCC 5.14.
1132 #if (CRYPTOPP_MSC_VERSION >= 1700) || __has_feature(cxx_lambdas) || \
1133  (__INTEL_COMPILER >= 1200) || (CRYPTOPP_GCC_VERSION >= 40900) || (__SUNPRO_CC >= 0x5140)
1134 # define CRYPTOPP_CXX11_LAMBDA 1
1135 #endif // lambdas
1136 
1137 // noexcept: MS at VS2015 (19.00); GCC at 4.6; Clang at 3.0; Intel 14.0; SunCC 5.13.
1138 #if (CRYPTOPP_MSC_VERSION >= 1900) || __has_feature(cxx_noexcept) || \
1139  (__INTEL_COMPILER >= 1400) || (CRYPTOPP_GCC_VERSION >= 40600) || (__SUNPRO_CC >= 0x5130)
1140 # define CRYPTOPP_CXX11_NOEXCEPT 1
1141 #endif // noexcept compilers
1142 
1143 // variadic templates: MS at VS2013 (18.00); GCC at 4.3; Clang at 2.9; Intel 12.1; SunCC 5.13.
1144 #if (CRYPTOPP_MSC_VERSION >= 1800) || __has_feature(cxx_variadic_templates) || \
1145  (__INTEL_COMPILER >= 1210) || (CRYPTOPP_GCC_VERSION >= 40300) || (__SUNPRO_CC >= 0x5130)
1146 # define CRYPTOPP_CXX11_VARIADIC_TEMPLATES 1
1147 #endif // variadic templates
1148 
1149 // constexpr: MS at VS2015 (19.00); GCC at 4.6; Clang at 3.1; Intel 16.0; SunCC 5.13.
1150 // Intel has mis-supported the feature since at least ICPC 13.00
1151 #if (CRYPTOPP_MSC_VERSION >= 1900) || __has_feature(cxx_constexpr) || \
1152  (__INTEL_COMPILER >= 1600) || (CRYPTOPP_GCC_VERSION >= 40600) || (__SUNPRO_CC >= 0x5130)
1153 # define CRYPTOPP_CXX11_CONSTEXPR 1
1154 #endif // constexpr compilers
1155 
1156 // strong typed enums: MS at VS2012 (17.00); GCC at 4.4; Clang at 3.3; Intel 14.0; SunCC 5.12.
1157 // Mircorosft and Intel had partial support earlier, but we require full support.
1158 #if (CRYPTOPP_MSC_VERSION >= 1700) || __has_feature(cxx_strong_enums) || \
1159  (__INTEL_COMPILER >= 1400) || (CRYPTOPP_GCC_VERSION >= 40400) || (__SUNPRO_CC >= 0x5120)
1160 # define CRYPTOPP_CXX11_ENUM 1
1161 #endif // constexpr compilers
1162 
1163 // nullptr_t: MS at VS2010 (16.00); GCC at 4.6; Clang at 3.3; Intel 10.0; SunCC 5.13.
1164 #if (CRYPTOPP_MSC_VERSION >= 1600) || __has_feature(cxx_nullptr) || \
1165  (__INTEL_COMPILER >= 1000) || (CRYPTOPP_GCC_VERSION >= 40600) || \
1166  (__SUNPRO_CC >= 0x5130) || defined(__IBMCPP_NULLPTR)
1167 # define CRYPTOPP_CXX11_NULLPTR 1
1168 #endif // nullptr_t compilers
1169 
1170 #endif // CRYPTOPP_CXX11
1171 
1172 // ***************** C++17 related ********************
1173 
1174 // C++17 macro version, https://stackoverflow.com/q/38456127/608639
1175 #if defined(CRYPTOPP_CXX11) && !defined(CRYPTOPP_NO_CXX17)
1176 # if ((_MSC_VER >= 1900) || (__cplusplus >= 201703L)) && !defined(_STLPORT_VERSION)
1177 # define CRYPTOPP_CXX17 1
1178 # endif
1179 #endif
1180 
1181 // C++17 is available
1182 #if defined(CRYPTOPP_CXX17)
1183 
1184 // C++17 uncaught_exceptions: MS at VS2015 (19.00); GCC at 6.0; Clang at 3.5; Intel 18.0.
1185 // Clang and __EXCEPTIONS see http://releases.llvm.org/3.6.0/tools/clang/docs/ReleaseNotes.html
1186 #if defined(__clang__)
1187 # if __EXCEPTIONS && __has_feature(cxx_exceptions)
1188 # if __cpp_lib_uncaught_exceptions
1189 # define CRYPTOPP_CXX17_EXCEPTIONS 1
1190 # endif
1191 # endif
1192 #elif (CRYPTOPP_MSC_VERSION >= 1900) || (__INTEL_COMPILER >= 1800) || (CRYPTOPP_GCC_VERSION >= 60000) || (__cpp_lib_uncaught_exceptions)
1193 # define CRYPTOPP_CXX17_EXCEPTIONS 1
1194 #endif // uncaught_exceptions compilers
1195 
1196 #endif // CRYPTOPP_CXX17
1197 
1198 // ***************** C++ fixups ********************
1199 
1200 #if defined(CRYPTOPP_CXX11_NOEXCEPT)
1201 # define CRYPTOPP_THROW noexcept(false)
1202 # define CRYPTOPP_NO_THROW noexcept(true)
1203 #else
1204 # define CRYPTOPP_THROW
1205 # define CRYPTOPP_NO_THROW
1206 #endif // CRYPTOPP_CXX11_NOEXCEPT
1207 
1208 // http://stackoverflow.com/a/13867690/608639
1209 #if defined(CRYPTOPP_CXX11_CONSTEXPR)
1210 # define CRYPTOPP_STATIC_CONSTEXPR static constexpr
1211 # define CRYPTOPP_CONSTEXPR constexpr
1212 #else
1213 # define CRYPTOPP_STATIC_CONSTEXPR static
1214 # define CRYPTOPP_CONSTEXPR
1215 #endif // CRYPTOPP_CXX11_CONSTEXPR
1216 
1217 // Hack... CRYPTOPP_ALIGN_DATA is defined earlier, before C++11 alignas availability is determined
1218 #if defined(CRYPTOPP_CXX11_ALIGNAS)
1219 # undef CRYPTOPP_ALIGN_DATA
1220 # define CRYPTOPP_ALIGN_DATA(x) alignas(x)
1221 #endif // CRYPTOPP_CXX11_ALIGNAS
1222 
1223 // Hack... CRYPTOPP_CONSTANT is defined earlier, before C++11 constexpr availability is determined
1224 // http://stackoverflow.com/q/35213098/608639
1225 // #if defined(CRYPTOPP_CXX11_CONSTEXPR)
1226 // # undef CRYPTOPP_CONSTANT
1227 // # define CRYPTOPP_CONSTANT(x) constexpr static int x;
1228 // #endif
1229 
1230 // Hack... CRYPTOPP_CONSTANT is defined earlier, before C++11 constexpr availability is determined
1231 // http://stackoverflow.com/q/35213098/608639
1232 #if defined(CRYPTOPP_CXX11_ENUM)
1233 # undef CRYPTOPP_CONSTANT
1234 # define CRYPTOPP_CONSTANT(x) enum : int { x };
1235 #elif defined(CRYPTOPP_CXX11_CONSTEXPR)
1236 # undef CRYPTOPP_CONSTANT
1237 # define CRYPTOPP_CONSTANT(x) constexpr static int x;
1238 #endif
1239 
1240 // Hack... C++11 nullptr_t type safety and analysis
1241 #if defined(CRYPTOPP_CXX11_NULLPTR) && !defined(NULLPTR)
1242 # define NULLPTR nullptr
1243 #elif !defined(NULLPTR)
1244 # define NULLPTR NULL
1245 #endif // CRYPTOPP_CXX11_NULLPTR
1246 
1247 // OK to comment the following out, but please report it so we can fix it.
1248 // C++17 value taken from http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2015/n4567.pdf.
1249 #if (defined(__cplusplus) && (__cplusplus >= 199711L) && (__cplusplus < 201402L)) && !defined(CRYPTOPP_UNCAUGHT_EXCEPTION_AVAILABLE)
1250 # error "std::uncaught_exception is not available. This is likely a configuration error."
1251 #endif
1252 
1253 #endif // CRYPTOPP_CONFIG_H
Crypto++ library namespace.