| /* |
| * Copyright 2018 Contributors |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions are met: |
| * |
| * 1. Redistributions of source code must retain the above copyright notice, |
| * this list of conditions and the following disclaimer. |
| * |
| * 2. Redistributions in binary form must reproduce the above copyright notice, |
| * this list of conditions and the following disclaimer in the documentation |
| * and/or other materials provided with the distribution. |
| |
| * 3. Neither the name of the copyright holder nor the names of its contributors |
| * may be used to endorse or promote products derived from this software without |
| * specific prior written permission. |
| |
| * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
| * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
| * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE |
| * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
| * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
| * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
| * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
| * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
| * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
| * POSSIBILITY OF SUCH DAMAGE. |
| * |
| ******************************************************************************* |
| * |
| * A special license exemption is granted to the Toybox project to use this |
| * source under the following BSD 0-Clause License: |
| * |
| * Permission to use, copy, modify, and/or distribute this software for any |
| * purpose with or without fee is hereby granted. |
| * |
| * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH |
| * REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY |
| * AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, |
| * INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM |
| * LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR |
| * OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR |
| * PERFORMANCE OF THIS SOFTWARE. |
| * |
| ******************************************************************************* |
| * |
| * Definitions for the num type. |
| * |
| */ |
| |
| #ifndef BC_NUM_H |
| #define BC_NUM_H |
| |
| // For C++ compatibility. |
| #ifdef __cplusplus |
| extern "C" { |
| #endif |
| |
| #include <stdbool.h> |
| #include <stdint.h> |
| #include <stdio.h> |
| #include <stdlib.h> |
| |
| #include <bc.h> |
| |
| #define BC_NUM_MIN_BASE (2) |
| |
| #define BC_NUM_MAX_INPUT_BASE (16) |
| |
| #define BC_NUM_MAX_OUTPUT_BASE (99) |
| |
| #define BC_NUM_DEF_SIZE (16) |
| |
| #define BC_NUM_FROM_CHAR(c) ((c) -'0') |
| |
| #define BC_NUM_TO_CHAR(n) ((n) + '0') |
| |
| #define BC_NUM_SCALE(n) ((n)->len - (n)->radix) |
| |
| typedef struct BcNum { |
| |
| char* num; |
| size_t radix; |
| size_t len; |
| size_t unused; |
| bool neg; |
| |
| } BcNum; |
| |
| typedef BcStatus (*BcUnaryFunc)(BcNum* a, BcNum* res, size_t scale); |
| typedef BcStatus (*BcBinaryFunc)(BcNum* a, BcNum* b, BcNum* res, size_t scale); |
| |
| BcStatus bc_num_construct(BcNum* n, size_t request); |
| |
| BcStatus bc_num_expand(BcNum* n, size_t request); |
| |
| void bc_num_destruct(BcNum* n); |
| |
| BcStatus bc_num_copy(BcNum* d, BcNum* s); |
| |
| BcStatus bc_num_parse(BcNum* n, const char* val, |
| size_t base, size_t scale); |
| |
| BcStatus bc_num_print(BcNum* n, size_t base); |
| BcStatus bc_num_fprint(BcNum* n, size_t base, FILE* f); |
| |
| BcStatus bc_num_long(BcNum* n, long* result); |
| BcStatus bc_num_ulong(BcNum* n, unsigned long* result); |
| |
| BcStatus bc_num_add(BcNum* a, BcNum* b, BcNum* result, size_t scale); |
| BcStatus bc_num_sub(BcNum* a, BcNum* b, BcNum* result, size_t scale); |
| BcStatus bc_num_mul(BcNum* a, BcNum* b, BcNum* result, size_t scale); |
| BcStatus bc_num_div(BcNum* a, BcNum* b, BcNum* result, size_t scale); |
| BcStatus bc_num_mod(BcNum* a, BcNum* b, BcNum* result, size_t scale); |
| BcStatus bc_num_pow(BcNum* a, BcNum* b, BcNum* result, size_t scale); |
| |
| BcStatus bc_num_sqrt(BcNum* a, BcNum* result, size_t scale); |
| |
| bool bc_num_isInteger(BcNum* num); |
| |
| int bc_num_compare(BcNum* a, BcNum* b); |
| |
| #ifdef __cplusplus |
| } |
| #endif |
| |
| #endif // BC_NUM_H |