Always do zero-barrier check and prevent LZB 0 overruns in movement logic - advtrains.git

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author	orwell96 <orwell@bleipb.de>	2020-04-28 17:10:25 +0200
committer	orwell96 <orwell@bleipb.de>	2021-02-10 16:36:24 +0100
commit	573d6b06b28c39872c1c036fc191c1c5e4b289a9 (patch)
tree	2155c70310ef86c52fd12e8a3c9a89ce5a9cbbdd /assets/wagonfancytexture.png
parent	8660794ef8392f08fa5be46715abb5dcbd96ca5d (diff)
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Always do zero-barrier check and prevent LZB 0 overruns in movement logic

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/* mini-gmp, a minimalistic implementation of a GNU GMP subset. Copyright 2011, 2012, 2013 Free Software Foundation, Inc. This file is part of the GNU MP Library. The GNU MP Library is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation; either version 3 of the License, or (at your option) any later version. The GNU MP Library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details. You should have received a copy of the GNU Lesser General Public License along with the GNU MP Library. If not, see http://www.gnu.org/licenses/. */ /* About mini-gmp: This is a minimal implementation of a subset of the GMP interface. It is intended for inclusion into applications which have modest bignums needs, as a fallback when the real GMP library is not installed. This file defines the public interface. */ #ifndef __MINI_GMP_H__ #define __MINI_GMP_H__ /* For size_t */ #include <stddef.h> #if defined (__cplusplus) extern "C" { #endif void mp_set_memory_functions (void *(*) (size_t), void *(*) (void *, size_t, size_t), void (*) (void *, size_t)); void mp_get_memory_functions (void *(**) (size_t), void *(**) (void *, size_t, size_t), void (**) (void *, size_t)); typedef unsigned long mp_limb_t; typedef long mp_size_t; typedef unsigned long mp_bitcnt_t; typedef mp_limb_t *mp_ptr; typedef const mp_limb_t *mp_srcptr; typedef struct { int _mp_alloc; /* Number of *limbs* allocated and pointed to by the _mp_d field. */ int _mp_size; /* abs(_mp_size) is the number of limbs the last field points to. If _mp_size is negative this is a negative number. */ mp_limb_t *_mp_d; /* Pointer to the limbs. */ } __mpz_struct; typedef __mpz_struct mpz_t[1]; typedef __mpz_struct *mpz_ptr; typedef const __mpz_struct *mpz_srcptr; void mpn_copyi (mp_ptr, mp_srcptr, mp_size_t); void mpn_copyd (mp_ptr, mp_srcptr, mp_size_t); int mpn_cmp (mp_srcptr, mp_srcptr, mp_size_t); mp_limb_t mpn_add_1 (mp_ptr, mp_srcptr, mp_size_t, mp_limb_t); mp_limb_t mpn_add_n (mp_ptr, mp_srcptr, mp_srcptr, mp_size_t); mp_limb_t mpn_add (mp_ptr, mp_srcptr, mp_size_t, mp_srcptr, mp_size_t); mp_limb_t mpn_sub_1 (mp_ptr, mp_srcptr, mp_size_t, mp_limb_t); mp_limb_t mpn_sub_n (mp_ptr, mp_srcptr, mp_srcptr, mp_size_t); mp_limb_t mpn_sub (mp_ptr, mp_srcptr, mp_size_t, mp_srcptr, mp_size_t); mp_limb_t mpn_mul_1 (mp_ptr, mp_srcptr, mp_size_t, mp_limb_t); mp_limb_t mpn_addmul_1 (mp_ptr, mp_srcptr, mp_size_t, mp_limb_t); mp_limb_t mpn_submul_1 (mp_ptr, mp_srcptr, mp_size_t, mp_limb_t); mp_limb_t mpn_mul (mp_ptr, mp_srcptr, mp_size_t, mp_srcptr, mp_size_t); void mpn_mul_n (mp_ptr, mp_srcptr, mp_srcptr, mp_size_t); void mpn_sqr (mp_ptr, mp_srcptr, mp_size_t); mp_limb_t mpn_lshift (mp_ptr, mp_srcptr, mp_size_t, unsigned int); mp_limb_t mpn_rshift (mp_ptr, mp_srcptr, mp_size_t, unsigned int); mp_limb_t mpn_invert_3by2 (mp_limb_t, mp_limb_t); #define mpn_invert_limb(x) mpn_invert_3by2 ((x), 0) size_t mpn_get_str (unsigned char *, int, mp_ptr, mp_size_t); mp_size_t mpn_set_str (mp_ptr, const unsigned char *, size_t, int); void mpz_init (mpz_t); void mpz_init2 (mpz_t, mp_bitcnt_t); void mpz_clear (mpz_t); #define mpz_odd_p(z) (((z)->_mp_size != 0) & (int) (z)->_mp_d[0]) #define mpz_even_p(z) (! mpz_odd_p (z)) int mpz_sgn (const mpz_t); int mpz_cmp_si (const mpz_t, long); int mpz_cmp_ui (const mpz_t, unsigned long); int mpz_cmp (const mpz_t, const mpz_t); int mpz_cmpabs_ui (const mpz_t, unsigned long); int mpz_cmpabs (const mpz_t, const mpz_t); int mpz_cmp_d (const mpz_t, double); int mpz_cmpabs_d (const mpz_t, double); void mpz_abs (mpz_t, const mpz_t); void mpz_neg (mpz_t, const mpz_t); void mpz_swap (mpz_t, mpz_t); void mpz_add_ui (mpz_t, const mpz_t, unsigned long); void mpz_add (mpz_t, const mpz_t, const mpz_t); void mpz_sub_ui (mpz_t, const mpz_t, unsigned long); void mpz_ui_sub (mpz_t, unsigned long, const mpz_t); void mpz_sub (mpz_t, const mpz_t, const mpz_t); void mpz_mul_si (mpz_t, const mpz_t, long int); void mpz_mul_ui (mpz_t, const mpz_t, unsigned long int); void mpz_mul (mpz_t, const mpz_t, const mpz_t); void mpz_mul_2exp (mpz_t, const mpz_t, mp_bitcnt_t); void mpz_cdiv_qr (mpz_t, mpz_t, const mpz_t, const mpz_t); void mpz_fdiv_qr (mpz_t, mpz_t, const mpz_t, const mpz_t); void mpz_tdiv_qr (mpz_t, mpz_t, const mpz_t, const mpz_t); void mpz_cdiv_q (mpz_t, const mpz_t, const mpz_t); void mpz_fdiv_q (mpz_t, const mpz_t, const mpz_t); void mpz_tdiv_q (mpz_t, const mpz_t, const mpz_t); void mpz_cdiv_r (mpz_t, const mpz_t, const mpz_t); void mpz_fdiv_r (mpz_t, const mpz_t, const mpz_t); void mpz_tdiv_r (mpz_t, const mpz_t, const mpz_t); void mpz_cdiv_q_2exp (mpz_t, const mpz_t, mp_bitcnt_t); void mpz_fdiv_q_2exp (mpz_t, const mpz_t, mp_bitcnt_t); void mpz_tdiv_q_2exp (mpz_t, const mpz_t, mp_bitcnt_t); void mpz_cdiv_r_2exp (mpz_t, const mpz_t, mp_bitcnt_t); void mpz_fdiv_r_2exp (mpz_t, const mpz_t, mp_bitcnt_t); void mpz_tdiv_r_2exp (mpz_t, const mpz_t, mp_bitcnt_t); void mpz_mod (mpz_t, const mpz_t, const mpz_t); void mpz_divexact (mpz_t, const mpz_t, const mpz_t); int mpz_divisible_p (const mpz_t, const mpz_t);


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