Go to the documentation of this file. 1 #define __DBL_MIN_EXP__ (-1021) 2 #define __cpp_attributes 200809L 3 #define __cpp_nontype_template_parameter_auto 201606L 4 #define __UINT_LEAST16_MAX__ 0xffff 5 #define __ATOMIC_ACQUIRE 2 6 #define __FLT128_MAX_10_EXP__ 4932 7 #define __FLT_MIN__ 1.17549435082228750796873653722224568e-38F 8 #define __GCC_IEC_559_COMPLEX 2 9 #define __cpp_aggregate_nsdmi 201304L 10 #define __UINT_LEAST8_TYPE__ unsigned char 11 #define __SIZEOF_FLOAT80__ 16 12 #define __INTMAX_C(c) c ## L 13 #define __CHAR_BIT__ 8 14 #define __UINT8_MAX__ 0xff 15 #define __SCHAR_WIDTH__ 8 16 #define __WINT_MAX__ 0xffffffffU 17 #define __FLT32_MIN_EXP__ (-125) 18 #define __cpp_static_assert 201411L 20 #define __ORDER_LITTLE_ENDIAN__ 1234 21 #define __SIZE_MAX__ 0xffffffffffffffffUL 22 #define __WCHAR_MAX__ 0x7fffffff 23 #define __GCC_HAVE_SYNC_COMPARE_AND_SWAP_1 1 24 #define __GCC_HAVE_SYNC_COMPARE_AND_SWAP_2 1 25 #define __GCC_HAVE_SYNC_COMPARE_AND_SWAP_4 1 26 #define __DBL_DENORM_MIN__ double(4.94065645841246544176568792868221372e-324L) 27 #define __GCC_HAVE_SYNC_COMPARE_AND_SWAP_8 1 28 #define __GCC_ATOMIC_CHAR_LOCK_FREE 2 29 #define __GCC_IEC_559 2 30 #define __FLT32X_DECIMAL_DIG__ 17 31 #define __FLT_EVAL_METHOD__ 0 32 #define __cpp_binary_literals 201304L 33 #define __FLT64_DECIMAL_DIG__ 17 34 #define __cpp_noexcept_function_type 201510L 35 #define __GCC_ATOMIC_CHAR32_T_LOCK_FREE 2 36 #define __cpp_variadic_templates 200704L 37 #define __UINT_FAST64_MAX__ 0xffffffffffffffffUL 38 #define __SIG_ATOMIC_TYPE__ int 39 #define __DBL_MIN_10_EXP__ (-307) 40 #define __FINITE_MATH_ONLY__ 0 41 #define __cpp_variable_templates 201304L 42 #define __FLT32X_MAX_EXP__ 1024 43 #define __FLT32_HAS_DENORM__ 1 44 #define __UINT_FAST8_MAX__ 0xff 45 #define __cpp_rvalue_reference 200610L 46 #define __cpp_nested_namespace_definitions 201411L 47 #define __DEC64_MAX_EXP__ 385 49 #define __INT_LEAST8_WIDTH__ 8 50 #define __cpp_variadic_using 201611L 51 #define __UINT_LEAST64_MAX__ 0xffffffffffffffffUL 52 #define QT_OPENGL_LIB 1 53 #define __INT_LEAST8_MAX__ 0x7f 54 #define __cpp_capture_star_this 201603L 55 #define __SHRT_MAX__ 0x7fff 56 #define __LDBL_MAX__ 1.18973149535723176502126385303097021e+4932L 57 #define __FLT64X_MAX_10_EXP__ 4932 58 #define __cpp_if_constexpr 201606L 59 #define __LDBL_IS_IEC_60559__ 2 60 #define __FLT64X_HAS_QUIET_NAN__ 1 61 #define __UINT_LEAST8_MAX__ 0xff 62 #define __GCC_ATOMIC_BOOL_LOCK_FREE 2 63 #define __FLT128_DENORM_MIN__ 6.47517511943802511092443895822764655e-4966F128 64 #define __UINTMAX_TYPE__ long unsigned int 66 #define __DEC32_EPSILON__ 1E-6DF 67 #define __FLT_EVAL_METHOD_TS_18661_3__ 0 69 #define __UINT32_MAX__ 0xffffffffU 70 #define __GXX_EXPERIMENTAL_CXX0X__ 1 71 #define __FLT128_MIN_EXP__ (-16381) 72 #define __WINT_MIN__ 0U 73 #define __FLT128_MIN_10_EXP__ (-4931) 74 #define __FLT32X_IS_IEC_60559__ 2 75 #define __INT_LEAST16_WIDTH__ 16 76 #define __SCHAR_MAX__ 0x7f 77 #define __FLT128_MANT_DIG__ 113 78 #define __WCHAR_MIN__ (-__WCHAR_MAX__ - 1) 79 #define __INT64_C(c) c ## L 80 #define __GCC_ATOMIC_POINTER_LOCK_FREE 2 81 #define __FLT32X_MANT_DIG__ 53 82 #define __GCC_ATOMIC_CHAR16_T_LOCK_FREE 2 83 #define __cpp_aligned_new 201606L 84 #define __USER_LABEL_PREFIX__ 85 #define __FLT32_MAX_10_EXP__ 38 86 #define __FLT64X_EPSILON__ 1.08420217248550443400745280086994171e-19F64x 87 #define __STDC_HOSTED__ 1 88 #define __DEC64_MIN_EXP__ (-382) 89 #define __cpp_decltype_auto 201304L 90 #define __DBL_DIG__ 15 91 #define __FLT32_DIG__ 6 92 #define __FLT_EPSILON__ 1.19209289550781250000000000000000000e-7F 93 #define __GXX_WEAK__ 1 94 #define __SHRT_WIDTH__ 16 95 #define __FLT32_IS_IEC_60559__ 2 96 #define __LDBL_MIN__ 3.36210314311209350626267781732175260e-4932L 97 #define __DBL_IS_IEC_60559__ 2 98 #define __DEC32_MAX__ 9.999999E96DF 99 #define __cpp_threadsafe_static_init 200806L 100 #define __cpp_enumerator_attributes 201411L 101 #define __FLT64X_DENORM_MIN__ 3.64519953188247460252840593361941982e-4951F64x 102 #define __FLT32X_HAS_INFINITY__ 1 103 #define __INT32_MAX__ 0x7fffffff 105 #define __INT_WIDTH__ 32 106 #define __SIZEOF_LONG__ 8 107 #define __STDC_IEC_559__ 1 108 #define __STDC_ISO_10646__ 201706L 109 #define __UINT16_C(c) c 110 #define __DECIMAL_DIG__ 21 111 #define __STDC_IEC_559_COMPLEX__ 1 112 #define __FLT64_EPSILON__ 2.22044604925031308084726333618164062e-16F64 113 #define __gnu_linux__ 1 114 #define __INT16_MAX__ 0x7fff 115 #define __FLT64_MIN_EXP__ (-1021) 116 #define __FLT64X_MIN_10_EXP__ (-4931) 117 #define __LDBL_HAS_QUIET_NAN__ 1 118 #define __FLT64_MANT_DIG__ 53 119 #define __FLT64X_MANT_DIG__ 64 123 #define __FLT_HAS_DENORM__ 1 124 #define __SIZEOF_LONG_DOUBLE__ 16 125 #define __BIGGEST_ALIGNMENT__ 16 126 #define __STDC_UTF_16__ 1 127 #define __FLT64_MAX_10_EXP__ 308 128 #define __cpp_delegating_constructors 200604L 129 #define __FLT32_HAS_INFINITY__ 1 130 #define __DBL_MAX__ double(1.79769313486231570814527423731704357e+308L) 131 #define __cpp_raw_strings 200710L 132 #define __INT_FAST32_MAX__ 0x7fffffffffffffffL 133 #define __DBL_HAS_INFINITY__ 1 134 #define __SIZEOF_FLOAT__ 4 135 #define __HAVE_SPECULATION_SAFE_VALUE 1 136 #define __cpp_fold_expressions 201603L 137 #define __DEC32_MIN_EXP__ (-94) 138 #define __INTPTR_WIDTH__ 64 139 #define __FLT64X_HAS_INFINITY__ 1 140 #define __UINT_LEAST32_MAX__ 0xffffffffU 141 #define __FLT32X_HAS_DENORM__ 1 142 #define __INT_FAST16_TYPE__ long int 143 #define __MMX_WITH_SSE__ 1 144 #define __LDBL_HAS_DENORM__ 1 145 #define QT_WIDGETS_LIB 1 146 #define __cplusplus 201703L 147 #define __cpp_ref_qualifiers 200710L 148 #define __DEC32_MIN__ 1E-95DF 149 #define __DEPRECATED 1 150 #define __cpp_rvalue_references 200610L 151 #define __DBL_MAX_EXP__ 1024 152 #define __WCHAR_WIDTH__ 32 153 #define __FLT32_MAX__ 3.40282346638528859811704183484516925e+38F32 154 #define __DEC128_EPSILON__ 1E-33DL 155 #define __SSE2_MATH__ 1 156 #define __ATOMIC_HLE_RELEASE 131072 157 #define __PTRDIFF_MAX__ 0x7fffffffffffffffL 159 #define __ATOMIC_HLE_ACQUIRE 65536 161 #define __LONG_LONG_MAX__ 0x7fffffffffffffffLL 162 #define __SIZEOF_SIZE_T__ 8 163 #define __cpp_nsdmi 200809L 164 #define __FLT64X_MIN_EXP__ (-16381) 165 #define __SIZEOF_WINT_T__ 4 166 #define __LONG_LONG_WIDTH__ 64 167 #define __cpp_initializer_lists 200806L 168 #define __FLT32_MAX_EXP__ 128 170 #define __cpp_hex_float 201603L 171 #define __GXX_ABI_VERSION 1016 172 #define __FLT128_HAS_INFINITY__ 1 173 #define kiss_fft_scalar double 174 #define __FLT_MIN_EXP__ (-125) 175 #define __GCC_HAVE_DWARF2_CFI_ASM 1 177 #define __cpp_lambdas 200907L 178 #define __INT_FAST64_TYPE__ long int 179 #define __FLT64_DENORM_MIN__ 4.94065645841246544176568792868221372e-324F64 180 #define PROTOBUF_USE_DLLS 1 181 #define __cpp_template_auto 201606L 182 #define __DBL_MIN__ double(2.22507385850720138309023271733240406e-308L) 183 #define __FLT128_EPSILON__ 1.92592994438723585305597794258492732e-34F128 184 #define __FLT64X_NORM_MAX__ 1.18973149535723176502126385303097021e+4932F64x 185 #define __SIZEOF_POINTER__ 8 187 #define __DBL_HAS_QUIET_NAN__ 1 188 #define __FLT32X_EPSILON__ 2.22044604925031308084726333618164062e-16F32x 189 #define __DECIMAL_BID_FORMAT__ 1 190 #define __FLT64_MIN_10_EXP__ (-307) 191 #define __FLT64X_DECIMAL_DIG__ 21 192 #define __DEC128_MIN__ 1E-6143DL 193 #define __REGISTER_PREFIX__ 194 #define __UINT16_MAX__ 0xffff 195 #define __LDBL_HAS_INFINITY__ 1 196 #define __FLT32_MIN__ 1.17549435082228750796873653722224568e-38F32 197 #define __UINT8_TYPE__ unsigned char 198 #define __FLT_DIG__ 6 199 #define __NO_INLINE__ 1 200 #define __DEC_EVAL_METHOD__ 2 201 #define __DEC128_MAX__ 9.999999999999999999999999999999999E6144DL 202 #define QT_NO_KEYWORDS 1 203 #define __FLT_MANT_DIG__ 24 204 #define __LDBL_DECIMAL_DIG__ 21 205 #define __VERSION__ "11.3.1 20220421 (Red Hat 11.3.1-3)" 206 #define __UINT64_C(c) c ## UL 207 #define __cpp_unicode_characters 201411L 208 #define _STDC_PREDEF_H 1 209 #define GLAD_API_CALL_EXPORT 1 210 #define __INT_LEAST32_MAX__ 0x7fffffff 211 #define __GCC_ATOMIC_INT_LOCK_FREE 2 212 #define __FLT128_MAX_EXP__ 16384 213 #define __FLT32_MANT_DIG__ 24 214 #define __FLOAT_WORD_ORDER__ __ORDER_LITTLE_ENDIAN__ 215 #define SIZEOF_DPTR (sizeof(void*)) 216 #define __cpp_aggregate_bases 201603L 217 #define __FLT128_HAS_DENORM__ 1 218 #define __FLT32_DECIMAL_DIG__ 9 219 #define __FLT128_DIG__ 33 220 #define __INT32_C(c) c 221 #define __DEC64_EPSILON__ 1E-15DD 222 #define __ORDER_PDP_ENDIAN__ 3412 223 #define __DEC128_MIN_EXP__ (-6142) 224 #define __INT_FAST32_TYPE__ long int 225 #define __UINT_LEAST16_TYPE__ short unsigned int 227 #define __DBL_HAS_DENORM__ 1 228 #define __cpp_rtti 199711L 229 #define __SIZE_TYPE__ long unsigned int 230 #define __UINT64_MAX__ 0xffffffffffffffffUL 231 #define __FLT_IS_IEC_60559__ 2 232 #define __GNUC_WIDE_EXECUTION_CHARSET_NAME "UTF-32LE" 233 #define __FLT64X_DIG__ 18 234 #define __INT8_TYPE__ signed char 235 #define __cpp_digit_separators 201309L 237 #define __GCC_ASM_FLAG_OUTPUTS__ 1 238 #define __UINT32_TYPE__ unsigned int 239 #define __FLT_RADIX__ 2 240 #define __INT_LEAST16_TYPE__ short int 241 #define __LDBL_EPSILON__ 1.08420217248550443400745280086994171e-19L 242 #define __UINTMAX_C(c) c ## UL 243 #define __GNUC_RH_RELEASE__ 3 244 #define __GLIBCXX_BITSIZE_INT_N_0 128 246 #define __FLT32X_MIN__ 2.22507385850720138309023271733240406e-308F32x 247 #define __SIG_ATOMIC_MAX__ 0x7fffffff 248 #define __GCC_ATOMIC_WCHAR_T_LOCK_FREE 2 249 #define __SIZEOF_PTRDIFF_T__ 8 250 #define __LDBL_DIG__ 18 251 #define __FLT64_IS_IEC_60559__ 2 253 #define __FLT32X_MIN_EXP__ (-1021) 254 #define __DEC32_SUBNORMAL_MIN__ 0.000001E-95DF 255 #define __INT_FAST16_MAX__ 0x7fffffffffffffffL 256 #define __FLT64_DIG__ 15 257 #define __UINT_FAST32_MAX__ 0xffffffffffffffffUL 258 #define __UINT_LEAST64_TYPE__ long unsigned int 259 #define __FLT_HAS_QUIET_NAN__ 1 260 #define __FLT_MAX_10_EXP__ 38 261 #define __LONG_MAX__ 0x7fffffffffffffffL 262 #define __FLT64X_HAS_DENORM__ 1 263 #define __DEC128_SUBNORMAL_MIN__ 0.000000000000000000000000000000001E-6143DL 264 #define __FLT_HAS_INFINITY__ 1 265 #define __GNUC_EXECUTION_CHARSET_NAME "UTF-8" 266 #define __cpp_unicode_literals 200710L 267 #define __UINT_FAST16_TYPE__ long unsigned int 268 #define __DEC64_MAX__ 9.999999999999999E384DD 269 #define __INT_FAST32_WIDTH__ 64 270 #define __CHAR16_TYPE__ short unsigned int 271 #define __PRAGMA_REDEFINE_EXTNAME 1 272 #define __SIZE_WIDTH__ 64 274 #define __INT_LEAST16_MAX__ 0x7fff 275 #define __DEC64_MANT_DIG__ 16 276 #define __INT64_MAX__ 0x7fffffffffffffffL 278 #define __FLT32_DENORM_MIN__ 1.40129846432481707092372958328991613e-45F32 279 #define __SIG_ATOMIC_WIDTH__ 32 280 #define __INT_LEAST64_TYPE__ long int 281 #define __INT16_TYPE__ short int 282 #define __INT_LEAST8_TYPE__ signed char 283 #define __cpp_structured_bindings 201606L 284 #define __SIZEOF_INT__ 4 285 #define __DEC32_MAX_EXP__ 97 286 #define __INT_FAST8_MAX__ 0x7f 287 #define __FLT128_MAX__ 1.18973149535723176508575932662800702e+4932F128 288 #define __INTPTR_MAX__ 0x7fffffffffffffffL 289 #define __cpp_sized_deallocation 201309L 290 #define __cpp_guaranteed_copy_elision 201606L 292 #define __FLT64_HAS_QUIET_NAN__ 1 293 #define __FLT32_MIN_10_EXP__ (-37) 294 #define __EXCEPTIONS 1 295 #define __PTRDIFF_WIDTH__ 64 296 #define __LDBL_MANT_DIG__ 64 297 #define __cpp_range_based_for 201603L 299 #define __FLT64_HAS_INFINITY__ 1 300 #define __FLT64X_MAX__ 1.18973149535723176502126385303097021e+4932F64x 301 #define __STDCPP_DEFAULT_NEW_ALIGNMENT__ 16 302 #define __SIG_ATOMIC_MIN__ (-__SIG_ATOMIC_MAX__ - 1) 303 #define __code_model_small__ 1 304 #define __GCC_ATOMIC_LONG_LOCK_FREE 2 305 #define __cpp_nontype_template_args 201411L 306 #define __DEC32_MANT_DIG__ 7 307 #define __cpp_return_type_deduction 201304L 309 #define __INTPTR_TYPE__ long int 310 #define __UINT16_TYPE__ short unsigned int 311 #define __WCHAR_TYPE__ int 312 #define __UINTPTR_MAX__ 0xffffffffffffffffUL 313 #define __INT_FAST64_WIDTH__ 64 314 #define __cpp_decltype 200707L 315 #define __INT_FAST64_MAX__ 0x7fffffffffffffffL 316 #define __GCC_ATOMIC_TEST_AND_SET_TRUEVAL 1 317 #define __FLT_NORM_MAX__ 3.40282346638528859811704183484516925e+38F 318 #define __FLT64X_MAX_EXP__ 16384 319 #define __UINT_FAST64_TYPE__ long unsigned int 320 #define __cpp_inline_variables 201606L 321 #define __INT_MAX__ 0x7fffffff 323 #define __INT64_TYPE__ long int 324 #define __FLT_MAX_EXP__ 128 325 #define __ORDER_BIG_ENDIAN__ 4321 326 #define __DBL_MANT_DIG__ 53 327 #define __cpp_inheriting_constructors 201511L 328 #define QT_CORE_LIB 1 329 #define __SIZEOF_FLOAT128__ 16 330 #define __INT_LEAST64_MAX__ 0x7fffffffffffffffL 331 #define __DEC64_MIN__ 1E-383DD 332 #define __WINT_TYPE__ unsigned int 333 #define __UINT_LEAST32_TYPE__ unsigned int 334 #define __SIZEOF_SHORT__ 2 335 #define __FLT32_NORM_MAX__ 3.40282346638528859811704183484516925e+38F32 337 #define __LDBL_MIN_EXP__ (-16381) 338 #define __FLT64_MAX__ 1.79769313486231570814527423731704357e+308F64 340 #define __WINT_WIDTH__ 32 341 #define __INT_LEAST64_WIDTH__ 64 342 #define __LDBL_MAX_EXP__ 16384 343 #define __FLT32X_MAX_10_EXP__ 308 344 #define __SIZEOF_INT128__ 16 345 #define __FLT64X_IS_IEC_60559__ 2 346 #define __LDBL_MAX_10_EXP__ 4932 347 #define __ATOMIC_RELAXED 0 348 #define __DBL_EPSILON__ double(2.22044604925031308084726333618164062e-16L) 349 #define __FLT128_MIN__ 3.36210314311209350626267781732175260e-4932F128 351 #define __UINT8_C(c) c 352 #define __FLT64_MAX_EXP__ 1024 353 #define __INT_LEAST32_TYPE__ int 354 #define __SIZEOF_WCHAR_T__ 4 355 #define __GNUC_PATCHLEVEL__ 1 356 #define __FLT128_NORM_MAX__ 1.18973149535723176508575932662800702e+4932F128 357 #define __FLT64_NORM_MAX__ 1.79769313486231570814527423731704357e+308F64 358 #define __FLT128_HAS_QUIET_NAN__ 1 359 #define __INTMAX_MAX__ 0x7fffffffffffffffL 360 #define __INT_FAST8_TYPE__ signed char 361 #define __cpp_namespace_attributes 201411L 362 #define __FLT64X_MIN__ 3.36210314311209350626267781732175260e-4932F64x 363 #define __STDCPP_THREADS__ 1 364 #define __GNUC_STDC_INLINE__ 1 365 #define __FLT64_HAS_DENORM__ 1 366 #define __FLT32_EPSILON__ 1.19209289550781250000000000000000000e-7F32 367 #define __DBL_DECIMAL_DIG__ 17 368 #define __STDC_UTF_32__ 1 369 #define __INT_FAST8_WIDTH__ 8 371 #define __FLT32X_MAX__ 1.79769313486231570814527423731704357e+308F32x 372 #define __DBL_NORM_MAX__ double(1.79769313486231570814527423731704357e+308L) 373 #define __BYTE_ORDER__ __ORDER_LITTLE_ENDIAN__ 374 #define __INTMAX_WIDTH__ 64 375 #define __cpp_runtime_arrays 198712L 376 #define __UINT64_TYPE__ long unsigned int 377 #define __UINT32_C(c) c ## U 378 #define __cpp_alias_templates 200704L 379 #define __FLT_DENORM_MIN__ 1.40129846432481707092372958328991613e-45F 380 #define __FLT128_IS_IEC_60559__ 2 381 #define __INT8_MAX__ 0x7f 382 #define __LONG_WIDTH__ 64 383 #define __UINT_FAST32_TYPE__ long unsigned int 384 #define __FLT32X_NORM_MAX__ 1.79769313486231570814527423731704357e+308F32x 385 #define __CHAR32_TYPE__ unsigned int 386 #define __FLT_MAX__ 3.40282346638528859811704183484516925e+38F 387 #define __cpp_constexpr 201603L 389 #define pqPython_EXPORTS 1 390 #define __cpp_deduction_guides 201703L 391 #define __INT32_TYPE__ int 392 #define __SIZEOF_DOUBLE__ 8 393 #define __cpp_exceptions 199711L 394 #define __FLT_MIN_10_EXP__ (-37) 395 #define __FLT64_MIN__ 2.22507385850720138309023271733240406e-308F64 396 #define __INT_LEAST32_WIDTH__ 32 397 #define __INTMAX_TYPE__ long int 398 #define __DEC128_MAX_EXP__ 6145 399 #define __FLT32X_HAS_QUIET_NAN__ 1 400 #define __ATOMIC_CONSUME 1 401 #define __GNUC_MINOR__ 3 402 #define __GLIBCXX_TYPE_INT_N_0 __int128 403 #define __INT_FAST16_WIDTH__ 64 404 #define __UINTMAX_MAX__ 0xffffffffffffffffUL 405 #define __FLT32X_DENORM_MIN__ 4.94065645841246544176568792868221372e-324F32x 406 #define __cpp_template_template_args 201611L 407 #define __DBL_MAX_10_EXP__ 308 408 #define __LDBL_DENORM_MIN__ 3.64519953188247460252840593361941982e-4951L 409 #define __INT16_C(c) c 411 #define __FLT32X_DIG__ 15 412 #define __PTRDIFF_TYPE__ long int 413 #define __ATOMIC_SEQ_CST 5 414 #define __FLT32X_MIN_10_EXP__ (-307) 415 #define __UINTPTR_TYPE__ long unsigned int 416 #define __DEC64_SUBNORMAL_MIN__ 0.000000000000001E-383DD 417 #define __DEC128_MANT_DIG__ 34 418 #define __LDBL_MIN_10_EXP__ (-4931) 419 #define __cpp_generic_lambdas 201304L 420 #define __SSE_MATH__ 1 421 #define __SIZEOF_LONG_LONG__ 8 422 #define __cpp_user_defined_literals 200809L 423 #define __FLT128_DECIMAL_DIG__ 36 424 #define __GCC_ATOMIC_LLONG_LOCK_FREE 2 425 #define __FLT32_HAS_QUIET_NAN__ 1 426 #define __FLT_DECIMAL_DIG__ 9 427 #define __UINT_FAST16_MAX__ 0xffffffffffffffffUL 428 #define __LDBL_NORM_MAX__ 1.18973149535723176502126385303097021e+4932L 429 #define __GCC_ATOMIC_SHORT_LOCK_FREE 2 430 #define __UINT_FAST8_TYPE__ unsigned char 431 #define _GNU_SOURCE 1 432 #define __cpp_init_captures 201304L 433 #define __ATOMIC_ACQ_REL 4 434 #define __ATOMIC_RELEASE 3