49 lines
916 B
C
49 lines
916 B
C
#ifndef BIGNUM_H
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#define BIGNUM_H
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#define RESULT_MSG_SIZE 64
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// Big numbers numerical base (10^9)
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#define BIGINT_BASE 1000000000
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// Each digit stores values from 0 to 999,999,999
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#define BIGINT_BASE_DIGITS 9
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#include <stdint.h>
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#include "vector.h"
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typedef enum { false = 0x0, true } bool;
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typedef enum {
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BIGNUM_OK = 0x0,
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BIGNUM_ERR_ALLOCATE,
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BIGNUM_ERR_DIV_BY_ZERO,
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BIGNUM_ERR_INVALID
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} bignum_status_t;
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typedef struct {
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vector_t *digits;
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bool is_negative;
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} bigint_t;
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typedef struct {
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bignum_status_t status;
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uint8_t message[RESULT_MSG_SIZE];
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union {
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bigint_t *number;
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char *string_num;
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} value;
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} bigint_result_t;
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#ifdef __cplusplus
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extern "C" {
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#endif
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bigint_result_t bigint_from_int(long long value);
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bigint_result_t bigint_from_string(const char *string_num);
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bigint_result_t bigint_destroy(bigint_t *number);
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#ifdef __cplusplus
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}
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#endif
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#endif |