Mercurial > hgrepos > Python2 > PyMuPDF

annotate mupdf-source/thirdparty/zint/backend/large.h @ 2:b50eed0cc0ef upstream

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ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4. The directory name has changed: no version number in the expanded directory now.
author Franz Glasner <fzglas.hg@dom66.de>
date Mon, 15 Sep 2025 11:43:07 +0200
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1 /* large.h - Handles binary manipulation of large numbers */
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3 /*
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4 libzint - the open source barcode library
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5 Copyright (C) 2008-2023 Robin Stuart <rstuart114@gmail.com>
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7 Redistribution and use in source and binary forms, with or without
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8 modification, are permitted provided that the following conditions
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9 are met:
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11 1. Redistributions of source code must retain the above copyright
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12 notice, this list of conditions and the following disclaimer.
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13 2. Redistributions in binary form must reproduce the above copyright
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14 notice, this list of conditions and the following disclaimer in the
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15 documentation and/or other materials provided with the distribution.
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16 3. Neither the name of the project nor the names of its contributors
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17 may be used to endorse or promote products derived from this software
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18 without specific prior written permission.
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20 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
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21 ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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22 IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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23 ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
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24 FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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25 DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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26 OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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27 HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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28 LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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29 OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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30 SUCH DAMAGE.
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31 */
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32 /* SPDX-License-Identifier: BSD-3-Clause */
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34 #ifndef Z_LARGE_H
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35 #define Z_LARGE_H
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37 #ifdef __cplusplus
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38 extern "C" {
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39 #endif /* __cplusplus */
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41 typedef struct { uint64_t lo; uint64_t hi; } large_uint;
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43 #define large_lo(s) ((s)->lo)
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44 #define large_hi(s) ((s)->hi)
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46 /* Set 128-bit `t` from 128-bit `s` */
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47 #define large_load(t, s) do { *(t) = *(s); } while (0)
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49 /* Set 128-bit `t` from 64-bit `s` */
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50 #define large_load_u64(t, s) do { (t)->lo = (s); (t)->hi = 0; } while (0)
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52 /* Convert decimal string `s` of (at most) length `length` to 64-bit and place in 128-bit `t` */
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53 INTERNAL void large_load_str_u64(large_uint *t, const unsigned char *s, const int length);
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55 /* Add 128-bit `s` to 128-bit `t` */
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56 INTERNAL void large_add(large_uint *t, const large_uint *s);
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57 /* Add 64-bit `s` to 128-bit `t` */
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58 INTERNAL void large_add_u64(large_uint *t, const uint64_t s);
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60 /* Subtract 64-bit `s` from 128-bit `t` */
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61 INTERNAL void large_sub_u64(large_uint *t, const uint64_t s);
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63 /* Multiply 128-bit `t` by 64-bit `s` */
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64 INTERNAL void large_mul_u64(large_uint *t, const uint64_t s);
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66 /* Divide 128-bit dividend `t` by 64-bit divisor `v`, returning 64-bit remainder */
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67 INTERNAL uint64_t large_div_u64(large_uint *t, uint64_t v);
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69 /* Unset a bit (zero-based) */
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70 INTERNAL void large_unset_bit(large_uint *t, const int bit);
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72 /* Output large_uint into an unsigned int array of size `size`, each element containing `bits` bits */
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73 INTERNAL void large_uint_array(const large_uint *t, unsigned int *uint_array, const int size, int bits);
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74 /* As `large_uint_array()` above, except output to unsigned char array */
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75 INTERNAL void large_uchar_array(const large_uint *t, unsigned char *uchar_array, const int size, int bits);
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77 /* Format large_uint into buffer, which should be at least 35 chars in size */
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78 INTERNAL char *large_dump(const large_uint *t, char *buf);
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79 /* Output formatted large_uint to stdout */
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80 INTERNAL void large_print(const large_uint *t);
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82 #ifdef __cplusplus
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83 }
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84 #endif /* __cplusplus */
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86 /* vim: set ts=4 sw=4 et : */
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87 #endif /* Z_LARGE_H */