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https://github.com/jart/cosmopolitan.git
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9b29358511
Status lines for Emacs and Vim have been added to Python sources so they'll be easier to edit using Python's preferred coding style. Some DNS helper functions have been broken up into multiple files. It's nice to have one function per file whenever possible, since that way we don't need -ffunction-sections. Another reason it's good to have small source files, is because the build will be enforcing resource limits on compilation and testing soon.
135 lines
7 KiB
C
135 lines
7 KiB
C
/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:4;tab-width:8;coding:utf-8 -*-│
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│vi: set net ft=c ts=4 sts=4 sw=4 fenc=utf-8 :vi│
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╞══════════════════════════════════════════════════════════════════════════════╡
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│ Copyright (c) 2008-2016 Stefan Krah. All rights reserved. │
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│ │
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│ Redistribution and use in source and binary forms, with or without │
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│ modification, are permitted provided that the following conditions │
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│ are met: │
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│ │
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│ 1. Redistributions of source code must retain the above copyright │
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│ notice, this list of conditions and the following disclaimer. │
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│ │
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│ 2. Redistributions in binary form must reproduce the above copyright │
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│ notice, this list of conditions and the following disclaimer in │
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│ the documentation and/or other materials provided with the │
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│ distribution. │
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│ │
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│ THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS "AS IS" AND │
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│ ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE │
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│ IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR │
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│ PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS │
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│ BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, │
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│ OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT │
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│ OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR │
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│ BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, │
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│ WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE │
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│ OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, │
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│ EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. │
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╚─────────────────────────────────────────────────────────────────────────────*/
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#include "third_party/python/Modules/_decimal/libmpdec/constants.h"
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#include "third_party/python/Modules/_decimal/libmpdec/mpdecimal.h"
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/* clang-format off */
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asm(".ident\t\"\\n\\n\
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libmpdec (BSD-2)\\n\
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Copyright 2008-2016 Stefan Krah\"");
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asm(".include \"libc/disclaimer.inc\"");
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#if defined(CONFIG_64)
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/* number-theory.c */
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const mpd_uint_t mpd_moduli[3] = {
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18446744069414584321ULL, 18446744056529682433ULL, 18446742974197923841ULL
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};
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const mpd_uint_t mpd_roots[3] = {7ULL, 10ULL, 19ULL};
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/* crt.c */
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const mpd_uint_t INV_P1_MOD_P2 = 18446744055098026669ULL;
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const mpd_uint_t INV_P1P2_MOD_P3 = 287064143708160ULL;
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const mpd_uint_t LH_P1P2 = 18446744052234715137ULL; /* (P1*P2) % 2^64 */
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const mpd_uint_t UH_P1P2 = 18446744052234715141ULL; /* (P1*P2) / 2^64 */
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/* transpose.c */
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const mpd_size_t mpd_bits[64] = {
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1, 2, 4, 8, 16, 32, 64, 128, 256, 512, 1024, 2048, 4096, 8192, 16384,
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32768, 65536, 131072, 262144, 524288, 1048576, 2097152, 4194304, 8388608,
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16777216, 33554432, 67108864, 134217728, 268435456, 536870912, 1073741824,
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2147483648ULL, 4294967296ULL, 8589934592ULL, 17179869184ULL, 34359738368ULL,
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68719476736ULL, 137438953472ULL, 274877906944ULL, 549755813888ULL,
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1099511627776ULL, 2199023255552ULL, 4398046511104, 8796093022208ULL,
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17592186044416ULL, 35184372088832ULL, 70368744177664ULL, 140737488355328ULL,
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281474976710656ULL, 562949953421312ULL, 1125899906842624ULL,
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2251799813685248ULL, 4503599627370496ULL, 9007199254740992ULL,
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18014398509481984ULL, 36028797018963968ULL, 72057594037927936ULL,
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144115188075855872ULL, 288230376151711744ULL, 576460752303423488ULL,
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1152921504606846976ULL, 2305843009213693952ULL, 4611686018427387904ULL,
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9223372036854775808ULL
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};
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/* mpdecimal.c */
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const mpd_uint_t mpd_pow10[MPD_RDIGITS+1] = {
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1,10,100,1000,10000,100000,1000000,10000000,100000000,1000000000,
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10000000000ULL,100000000000ULL,1000000000000ULL,10000000000000ULL,
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100000000000000ULL,1000000000000000ULL,10000000000000000ULL,
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100000000000000000ULL,1000000000000000000ULL,10000000000000000000ULL
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};
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/* magic number for constant division by MPD_RADIX */
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const mpd_uint_t mprime_rdx = 15581492618384294730ULL;
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#elif defined(CONFIG_32)
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/* number-theory.c */
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const mpd_uint_t mpd_moduli[3] = {2113929217UL, 2013265921UL, 1811939329UL};
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const mpd_uint_t mpd_roots[3] = {5UL, 31UL, 13UL};
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/* PentiumPro modular multiplication: These constants have to be loaded as
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* 80 bit long doubles, which are not supported by certain compilers. */
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const uint32_t mpd_invmoduli[3][3] = {
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{4293885170U, 2181570688U, 16352U}, /* ((long double) 1 / 2113929217UL) */
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{1698898177U, 2290649223U, 16352U}, /* ((long double) 1 / 2013265921UL) */
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{2716021846U, 2545165803U, 16352U} /* ((long double) 1 / 1811939329UL) */
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};
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const float MPD_TWO63 = 9223372036854775808.0; /* 2^63 */
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/* crt.c */
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const mpd_uint_t INV_P1_MOD_P2 = 2013265901UL;
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const mpd_uint_t INV_P1P2_MOD_P3 = 54UL;
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const mpd_uint_t LH_P1P2 = 4127195137UL; /* (P1*P2) % 2^32 */
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const mpd_uint_t UH_P1P2 = 990904320UL; /* (P1*P2) / 2^32 */
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/* transpose.c */
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const mpd_size_t mpd_bits[32] = {
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1, 2, 4, 8, 16, 32, 64, 128, 256, 512, 1024, 2048, 4096, 8192, 16384,
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32768, 65536, 131072, 262144, 524288, 1048576, 2097152, 4194304, 8388608,
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16777216, 33554432, 67108864, 134217728, 268435456, 536870912, 1073741824,
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2147483648UL
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};
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/* mpdecimal.c */
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const mpd_uint_t mpd_pow10[MPD_RDIGITS+1] = {
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1,10,100,1000,10000,100000,1000000,10000000,100000000,1000000000
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};
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#else
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#error "CONFIG_64 or CONFIG_32 must be defined."
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#endif
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const char *mpd_round_string[MPD_ROUND_GUARD] = {
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"ROUND_UP", /* round away from 0 */
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"ROUND_DOWN", /* round toward 0 (truncate) */
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"ROUND_CEILING", /* round toward +infinity */
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"ROUND_FLOOR", /* round toward -infinity */
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"ROUND_HALF_UP", /* 0.5 is rounded up */
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"ROUND_HALF_DOWN", /* 0.5 is rounded down */
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"ROUND_HALF_EVEN", /* 0.5 is rounded to even */
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"ROUND_05UP", /* round zero or five away from 0 */
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"ROUND_TRUNC", /* truncate, but set infinity */
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};
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const char *mpd_clamp_string[MPD_CLAMP_GUARD] = {
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"CLAMP_DEFAULT",
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"CLAMP_IEEE_754"
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};
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