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https://github.com/jart/cosmopolitan.git
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b420ed8248
This change gets the Python codebase into a state where it conforms to the conventions of this codebase. It's now possible to include headers from Python, without worrying about ordering. Python has traditionally solved that problem by "diamonding" everything in Python.h, but that's problematic since it means any change to any Python header invalidates all the build artifacts. Lastly it makes tooling not work. Since it is hard to explain to Emacs when I press C-c C-h to add an import line it shouldn't add the header that actually defines the symbol, and instead do follow the nonstandard Python convention. Progress has been made on letting Python load source code from the zip executable structure via the standard C library APIs. System calss now recognizes zip!FILENAME alternative URIs as equivalent to zip:FILENAME since Python uses colon as its delimiter. Some progress has been made on embedding the notice license terms into the Python object code. This is easier said than done since Python has an extremely complicated ownership story. - Some termios APIs have been added - Implement rewinddir() dirstream API - GetCpuCount() API added to Cosmopolitan Libc - More bugs in Cosmopolitan Libc have been fixed - zipobj.com now has flags for mangling the path - Fixed bug a priori with sendfile() on certain BSDs - Polyfill F_DUPFD and F_DUPFD_CLOEXEC across platforms - FIOCLEX / FIONCLEX now polyfilled for fast O_CLOEXEC changes - APE now supports a hybrid solution to no-self-modify for builds - Many BSD-only magnums added, e.g. O_SEARCH, O_SHLOCK, SF_NODISKIO
86 lines
4 KiB
C
86 lines
4 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=2 sts=2 sw=2 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 "libc/assert.h"
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#include "third_party/python/Modules/_decimal/libmpdec/bits.h"
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#include "third_party/python/Modules/_decimal/libmpdec/difradix2.h"
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#include "third_party/python/Modules/_decimal/libmpdec/fnt.h"
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#include "third_party/python/Modules/_decimal/libmpdec/mpdecimal.h"
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#include "third_party/python/Modules/_decimal/libmpdec/numbertheory.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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/* Bignum: Fast transform for medium-sized coefficients. */
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/* forward transform, sign = -1 */
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int
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std_fnt(mpd_uint_t *a, mpd_size_t n, int modnum)
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{
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struct fnt_params *tparams;
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assert(ispower2(n));
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assert(n >= 4);
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assert(n <= 3*MPD_MAXTRANSFORM_2N);
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if ((tparams = _mpd_init_fnt_params(n, -1, modnum)) == NULL) {
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return 0;
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}
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fnt_dif2(a, n, tparams);
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mpd_free(tparams);
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return 1;
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}
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/* reverse transform, sign = 1 */
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int
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std_inv_fnt(mpd_uint_t *a, mpd_size_t n, int modnum)
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{
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struct fnt_params *tparams;
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assert(ispower2(n));
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assert(n >= 4);
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assert(n <= 3*MPD_MAXTRANSFORM_2N);
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if ((tparams = _mpd_init_fnt_params(n, 1, modnum)) == NULL) {
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return 0;
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}
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fnt_dif2(a, n, tparams);
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mpd_free(tparams);
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return 1;
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}
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