micropython/py/mpz.h
stijn 0e557facb9 mpz: Fix 64bit msvc build
msvc does not treat 1L a 64bit integer hence all occurences of shifting it left or right
result in undefined behaviour since the maximum allowed shift count for 32bit ints is 31.
Forcing the correct type explicitely, stored in MPZ_LONG_1, solves this.
2014-10-30 23:00:24 +00:00

134 lines
5.5 KiB
C

/*
* This file is part of the Micro Python project, http://micropython.org/
*
* The MIT License (MIT)
*
* Copyright (c) 2013, 2014 Damien P. George
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
// This mpz module implements arbitrary precision integers.
//
// The storage for each digit is defined by mpz_dig_t. The actual number of
// bits in mpz_dig_t that are used is defined by MPZ_DIG_SIZE. The machine must
// also provide a type that is twice as wide as mpz_dig_t, in both signed and
// unsigned versions.
//
// MPZ_DIG_SIZE can be between 4 and 8*sizeof(mpz_dig_t), but it makes most
// sense to have it as large as possible. Below, the type is auto-detected
// depending on the machine, but it (and MPZ_DIG_SIZE) can be freely changed so
// long as the constraints mentioned above are met.
#if defined(__x86_64__) || defined(_WIN64)
// 64-bit machine, using 32-bit storage for digits
typedef uint32_t mpz_dig_t;
typedef uint64_t mpz_dbl_dig_t;
typedef int64_t mpz_dbl_dig_signed_t;
#define MPZ_DIG_SIZE (32)
#else
// 32-bit machine, using 16-bit storage for digits
typedef uint16_t mpz_dig_t;
typedef uint32_t mpz_dbl_dig_t;
typedef int32_t mpz_dbl_dig_signed_t;
#define MPZ_DIG_SIZE (16)
#endif
#ifdef _WIN64
#define MPZ_LONG_1 1i64
#else
#define MPZ_LONG_1 1L
#endif
#define MPZ_NUM_DIG_FOR_INT (sizeof(mp_int_t) * 8 / MPZ_DIG_SIZE + 1)
#define MPZ_NUM_DIG_FOR_LL (sizeof(long long) * 8 / MPZ_DIG_SIZE + 1)
typedef struct _mpz_t {
mp_uint_t neg : 1;
mp_uint_t fixed_dig : 1;
mp_uint_t alloc : 30;
mp_uint_t len;
mpz_dig_t *dig;
} mpz_t;
// convenience macro to declare an mpz with a digit array from the stack, initialised by an integer
#define MPZ_CONST_INT(z, val) mpz_t z; mpz_dig_t z ## _digits[MPZ_NUM_DIG_FOR_INT]; mpz_init_fixed_from_int(&z, z_digits, MPZ_NUM_DIG_FOR_INT, val);
void mpz_init_zero(mpz_t *z);
void mpz_init_from_int(mpz_t *z, mp_int_t val);
void mpz_init_fixed_from_int(mpz_t *z, mpz_dig_t *dig, mp_uint_t dig_alloc, mp_int_t val);
void mpz_deinit(mpz_t *z);
mpz_t *mpz_zero();
mpz_t *mpz_from_int(mp_int_t i);
mpz_t *mpz_from_ll(long long i, bool is_signed);
mpz_t *mpz_from_str(const char *str, mp_uint_t len, bool neg, mp_uint_t base);
void mpz_free(mpz_t *z);
mpz_t *mpz_clone(const mpz_t *src);
void mpz_set(mpz_t *dest, const mpz_t *src);
void mpz_set_from_int(mpz_t *z, mp_int_t src);
void mpz_set_from_ll(mpz_t *z, long long i, bool is_signed);
mp_uint_t mpz_set_from_str(mpz_t *z, const char *str, mp_uint_t len, bool neg, mp_uint_t base);
bool mpz_is_zero(const mpz_t *z);
bool mpz_is_pos(const mpz_t *z);
bool mpz_is_neg(const mpz_t *z);
bool mpz_is_odd(const mpz_t *z);
bool mpz_is_even(const mpz_t *z);
int mpz_cmp(const mpz_t *lhs, const mpz_t *rhs);
mpz_t *mpz_abs(const mpz_t *z);
mpz_t *mpz_neg(const mpz_t *z);
mpz_t *mpz_add(const mpz_t *lhs, const mpz_t *rhs);
mpz_t *mpz_sub(const mpz_t *lhs, const mpz_t *rhs);
mpz_t *mpz_mul(const mpz_t *lhs, const mpz_t *rhs);
mpz_t *mpz_pow(const mpz_t *lhs, const mpz_t *rhs);
void mpz_abs_inpl(mpz_t *dest, const mpz_t *z);
void mpz_neg_inpl(mpz_t *dest, const mpz_t *z);
void mpz_not_inpl(mpz_t *dest, const mpz_t *z);
void mpz_shl_inpl(mpz_t *dest, const mpz_t *lhs, mp_int_t rhs);
void mpz_shr_inpl(mpz_t *dest, const mpz_t *lhs, mp_int_t rhs);
void mpz_add_inpl(mpz_t *dest, const mpz_t *lhs, const mpz_t *rhs);
void mpz_sub_inpl(mpz_t *dest, const mpz_t *lhs, const mpz_t *rhs);
void mpz_mul_inpl(mpz_t *dest, const mpz_t *lhs, const mpz_t *rhs);
void mpz_pow_inpl(mpz_t *dest, const mpz_t *lhs, const mpz_t *rhs);
void mpz_and_inpl(mpz_t *dest, const mpz_t *lhs, const mpz_t *rhs);
void mpz_or_inpl(mpz_t *dest, const mpz_t *lhs, const mpz_t *rhs);
void mpz_xor_inpl(mpz_t *dest, const mpz_t *lhs, const mpz_t *rhs);
mpz_t *mpz_gcd(const mpz_t *z1, const mpz_t *z2);
mpz_t *mpz_lcm(const mpz_t *z1, const mpz_t *z2);
void mpz_divmod(const mpz_t *lhs, const mpz_t *rhs, mpz_t **quo, mpz_t **rem);
void mpz_divmod_inpl(mpz_t *dest_quo, mpz_t *dest_rem, const mpz_t *lhs, const mpz_t *rhs);
mpz_t *mpz_div(const mpz_t *lhs, const mpz_t *rhs);
mpz_t *mpz_mod(const mpz_t *lhs, const mpz_t *rhs);
mp_int_t mpz_hash(const mpz_t *z);
bool mpz_as_int_checked(const mpz_t *z, mp_int_t *value);
bool mpz_as_uint_checked(const mpz_t *z, mp_uint_t *value);
#if MICROPY_PY_BUILTINS_FLOAT
mp_float_t mpz_as_float(const mpz_t *z);
#endif
mp_uint_t mpz_as_str_size(const mpz_t *i, mp_uint_t base, const char *prefix, char comma);
mp_uint_t mpz_as_str_inpl(const mpz_t *z, mp_uint_t base, const char *prefix, char base_char, char comma, char *str);