File numeric_opfunc.c¶

FileList > cubrid > src > query > numeric_opfunc.c

#include <float.h>
#include <math.h>
#include <assert.h>
#include <stdio.h>
#include <string.h>
#include "mprec.h"
#include "numeric_opfunc.h"
#include "tz_support.h"
#include "db_date.h"
#include "memory_alloc.h"
#include "system_parameter.h"
#include "byte_order.h"
#include "object_primitive.h"
#include "object_representation.h"
#include <cmath>
#include "dbtype.h"
#include "memory_wrapper.hpp"

Classes¶

Type	Name
struct	dec_string

Public Types¶

Type	Name
typedef struct dec_string	DEC_STRING
typedef enum fp_value_type	FP_VALUE_TYPE
enum	fp_value_type

Public Static Attributes¶

Type	Name
const char	fast_mod = `/* multi line expression */`
const double	numeric_Pow_of_10 = `/* multi line expression */`
unsigned char	powers_of_10
DEC_STRING	powers_of_2

Public Functions¶

Type	Name
void	numeric_coerce_bigint_to_num (DB_BIGINT arg, DB_C_NUMERIC answer)
void	numeric_coerce_dec_str_to_num (const char * dec_str, DB_C_NUMERIC result)
int	numeric_coerce_double_to_num (double adouble, DB_C_NUMERIC num, int * prec, int * scale)
void	numeric_coerce_int_to_num (int arg, DB_C_NUMERIC answer)
int	numeric_coerce_num_to_bigint (DB_C_NUMERIC arg, int scale, DB_BIGINT * answer)
void	numeric_coerce_num_to_dec_str (DB_C_NUMERIC num, char * dec_str)
void	numeric_coerce_num_to_double (DB_C_NUMERIC num, int scale, double * adouble)
void	numeric_coerce_num_to_int (DB_C_NUMERIC arg, int * answer)
int	numeric_coerce_num_to_num (DB_C_NUMERIC src_num, int src_prec, int src_scale, int dest_prec, int dest_scale, DB_C_NUMERIC dest_num)
int	numeric_coerce_string_to_num (const char * astring, int astring_length, INTL_CODESET codeset, DB_VALUE * result)
void	numeric_db_value_abs (DB_C_NUMERIC src_num, DB_C_NUMERIC dest_num)
int	numeric_db_value_add (const DB_VALUE * dbv1, const DB_VALUE * dbv2, DB_VALUE * answer)
int	numeric_db_value_coerce_from_num (DB_VALUE * src, DB_VALUE * dest, DB_DATA_STATUS * data_status)
int	numeric_db_value_coerce_from_num_strict (DB_VALUE * src, DB_VALUE * dest)
int	numeric_db_value_coerce_to_num (DB_VALUE * src, DB_VALUE * dest, DB_DATA_STATUS * data_status)
int	numeric_db_value_compare (const DB_VALUE * dbv1, const DB_VALUE * dbv2, DB_VALUE * answer)
int	numeric_db_value_div (const DB_VALUE * dbv1, const DB_VALUE * dbv2, DB_VALUE * answer)
int	numeric_db_value_increase (DB_VALUE * arg)
int	numeric_db_value_is_positive (const DB_VALUE * dbvalue)
bool	numeric_db_value_is_zero (const DB_VALUE * arg)
int	numeric_db_value_mul (const DB_VALUE * dbv1, const DB_VALUE * dbv2, DB_VALUE * answer)
int	numeric_db_value_negate (DB_VALUE * answer)
char *	numeric_db_value_print (const DB_VALUE * val, char * buf)
int	numeric_db_value_sub (const DB_VALUE * dbv1, const DB_VALUE * dbv2, DB_VALUE * answer)
void	numeric_init_power_value_string (void)
int	numeric_internal_double_to_num (double adouble, int dst_scale, DB_C_NUMERIC num, int * prec, int * scale)
int	numeric_internal_float_to_num (float afloat, int dst_scale, DB_C_NUMERIC num, int * prec, int * scale)

Public Static Functions¶

Type	Name
FP_VALUE_TYPE	get_fp_value_type (double d)
int	get_significant_digit (DB_BIGINT i)
void	numeric_add (DB_C_NUMERIC arg1, DB_C_NUMERIC arg2, DB_C_NUMERIC answer, int size)
void	numeric_add_dec_str (DEC_STRING * arg1, DEC_STRING * arg2, DEC_STRING * answer)
void	numeric_coerce_big_num_to_dec_str (unsigned char * num, char * dec_str)
int	numeric_common_prec_scale (const DB_VALUE * dbv1, const DB_VALUE * dbv2, DB_VALUE * dbv1_common, DB_VALUE * dbv2_common)
int	numeric_compare (DB_C_NUMERIC arg1, DB_C_NUMERIC arg2)
int	numeric_compare_pos (DB_C_NUMERIC arg1, DB_C_NUMERIC arg2)
void	numeric_copy (DB_C_NUMERIC dest, DB_C_NUMERIC source)
void	numeric_copy_long (DB_C_NUMERIC dest, DB_C_NUMERIC source, bool is_long_num)
void	numeric_decrease (DB_C_NUMERIC answer)
void	numeric_div (DB_C_NUMERIC arg1, DB_C_NUMERIC arg2, DB_C_NUMERIC answer, DB_C_NUMERIC remainder)
void	numeric_double_shift_bit (DB_C_NUMERIC arg1, DB_C_NUMERIC arg2, int numbits, DB_C_NUMERIC lsb, DB_C_NUMERIC msb, bool is_long_num)
int	numeric_fast_convert (double adouble, int dst_scale, DB_C_NUMERIC num, int * prec, int * scale)
void	numeric_get_fractional_part (const DB_C_NUMERIC num, const int src_scale, const int dst_prec, DB_C_NUMERIC dest)
void	numeric_get_integral_part (const DB_C_NUMERIC num, const int src_prec, const int src_scale, const int dst_prec, DB_C_NUMERIC dest)
int	numeric_get_msb_for_dec (int src_prec, int src_scale, unsigned char * src, int * dest_prec, int * dest_scale, DB_C_NUMERIC dest)
DB_C_NUMERIC	numeric_get_pow_of_10 (int exp)
DEC_STRING *	numeric_get_pow_of_2 (int exp)
void	numeric_increase (DB_C_NUMERIC answer)
void	numeric_increase_long (DB_C_NUMERIC answer, bool is_long_num)
void	numeric_init_dec_str (DEC_STRING * answer)
void	numeric_init_pow_of_10 (void)
void	numeric_init_pow_of_10_helper (void)
void	numeric_init_pow_of_2 (void)
void	numeric_init_pow_of_2_helper (void)
int	numeric_internal_real_to_num (double adouble, int dst_scale, DB_C_NUMERIC num, int * prec, int * scale, bool is_float)
bool	numeric_is_bigint (DB_C_NUMERIC arg)
bool	numeric_is_bit_set (DB_C_NUMERIC arg, int pos)
bool	numeric_is_fraction_part_zero (const DB_C_NUMERIC num, const int scale)
bool	numeric_is_long (DB_C_NUMERIC arg)
bool	numeric_is_longnum_value (DB_C_NUMERIC arg)
bool	numeric_is_negative (DB_C_NUMERIC arg)
bool	numeric_is_zero (DB_C_NUMERIC arg)
void	numeric_long_div (DB_C_NUMERIC a1, DB_C_NUMERIC a2, DB_C_NUMERIC answer, DB_C_NUMERIC remainder, bool is_long_num)
int	numeric_longnum_to_shortnum (DB_C_NUMERIC answer, DB_C_NUMERIC long_arg)
void	numeric_mul (DB_C_NUMERIC a1, DB_C_NUMERIC a2, bool * positive_flag, DB_C_NUMERIC answer)
void	numeric_negate (DB_C_NUMERIC answer)
void	numeric_negate_long (DB_C_NUMERIC answer, bool is_long_num)
void	numeric_negative_one (DB_C_NUMERIC answer, int size)
bool	numeric_overflow (DB_C_NUMERIC arg, int exp)
int	numeric_prec_scale_when_overflow (const DB_VALUE * dbv1, const DB_VALUE * dbv2, DB_VALUE * dbv1_common, DB_VALUE * dbv2_common)
int	numeric_scale_by_ten (DB_C_NUMERIC arg, bool is_long_num)
int	numeric_scale_dec (const DB_C_NUMERIC arg, int dscale, DB_C_NUMERIC answer)
int	numeric_scale_dec_long (DB_C_NUMERIC answer, int dscale, bool is_long_num)
void	numeric_shift_byte (DB_C_NUMERIC arg, int numbytes, DB_C_NUMERIC answer, int length)
void	numeric_shortnum_to_longnum (DB_C_NUMERIC long_answer, DB_C_NUMERIC arg)
void	numeric_sub (DB_C_NUMERIC arg1, DB_C_NUMERIC arg2, DB_C_NUMERIC answer, int size)
void	numeric_zero (DB_C_NUMERIC answer, int size)

Macros¶

Type	Name
define	CARRYOVER (arg) `((arg) >> 8)`
define	DB_LONG_NUMERIC_MULTIPLIER `2`
define	GET_LOWER_BYTE (arg) `((arg) & 0xff)`
define	NUMERIC_ABS (a) `(([a](broker__monitor_8c.md#function-timeout)) >= 0 ? [a](broker__monitor_8c.md#function-timeout) : -[a](broker__monitor_8c.md#function-timeout))`
define	ROUND (x) `(([x](broker__monitor_8c.md#function-timeout)) > 0 ? (([x](broker__monitor_8c.md#function-timeout)) + .5) : (([x](broker__monitor_8c.md#function-timeout)) - .5))`
define	SECONDS_IN_A_DAY `([int](broker__monitor_8c.md#function-timeout))(24[L](broker__monitor_8c.md#function-timeout) \* 60L \* 60L)`
define	TWICE_NUM_MAX_PREC `(2\[DB\_MAX\_NUMERIC\_PRECISION*](dbtype__def_8h.md#define-db_max_numeric_precision))`

Public Types Documentation¶

typedef DEC_STRING¶

typedef struct dec_string DEC_STRING;

typedef FP_VALUE_TYPE¶

typedef enum fp_value_type FP_VALUE_TYPE;

enum fp_value_type¶

enum fp_value_type {
    FP_VALUE_TYPE_NUMBER,
    FP_VALUE_TYPE_INFINITE,
    FP_VALUE_TYPE_NAN,
    FP_VALUE_TYPE_ZERO
};

Public Static Attributes Documentation¶

variable fast_mod¶

const char fast_mod[20];

variable numeric_Pow_of_10¶

const double numeric_Pow_of_10[10];

variable powers_of_10¶

unsigned char powers_of_10[(2 *DB_MAX_NUMERIC_PRECISION)+1][DB_NUMERIC_BUF_SIZE];

variable powers_of_2¶

DEC_STRING powers_of_2[DB_NUMERIC_BUF_SIZE *16];

Public Functions Documentation¶

function numeric_coerce_bigint_to_num¶

void numeric_coerce_bigint_to_num (
    DB_BIGINT arg,
    DB_C_NUMERIC answer
)

function numeric_coerce_dec_str_to_num¶

void numeric_coerce_dec_str_to_num (
    const  char * dec_str,
    DB_C_NUMERIC result
)

function numeric_coerce_double_to_num¶

int numeric_coerce_double_to_num (
    double adouble,
    DB_C_NUMERIC num,
    int * prec,
    int * scale
)

function numeric_coerce_int_to_num¶

void numeric_coerce_int_to_num (
    int arg,
    DB_C_NUMERIC answer
)

function numeric_coerce_num_to_bigint¶

int numeric_coerce_num_to_bigint (
    DB_C_NUMERIC arg,
    int scale,
    DB_BIGINT * answer
)

function numeric_coerce_num_to_dec_str¶

void numeric_coerce_num_to_dec_str (
    DB_C_NUMERIC num,
    char * dec_str
)

function numeric_coerce_num_to_double¶

void numeric_coerce_num_to_double (
    DB_C_NUMERIC num,
    int scale,
    double * adouble
)

function numeric_coerce_num_to_int¶

void numeric_coerce_num_to_int (
    DB_C_NUMERIC arg,
    int * answer
)

function numeric_coerce_num_to_num¶

int numeric_coerce_num_to_num (
    DB_C_NUMERIC src_num,
    int src_prec,
    int src_scale,
    int dest_prec,
    int dest_scale,
    DB_C_NUMERIC dest_num
)

function numeric_coerce_string_to_num¶

int numeric_coerce_string_to_num (
    const  char * astring,
    int astring_length,
    INTL_CODESET codeset,
    DB_VALUE * result
)

function numeric_db_value_abs¶

void numeric_db_value_abs (
    DB_C_NUMERIC src_num,
    DB_C_NUMERIC dest_num
)

function numeric_db_value_add¶

int numeric_db_value_add (
    const  DB_VALUE * dbv1,
    const  DB_VALUE * dbv2,
    DB_VALUE * answer
)

function numeric_db_value_coerce_from_num¶

int numeric_db_value_coerce_from_num (
    DB_VALUE * src,
    DB_VALUE * dest,
    DB_DATA_STATUS * data_status
)

function numeric_db_value_coerce_from_num_strict¶

int numeric_db_value_coerce_from_num_strict (
    DB_VALUE * src,
    DB_VALUE * dest
)

function numeric_db_value_coerce_to_num¶

int numeric_db_value_coerce_to_num (
    DB_VALUE * src,
    DB_VALUE * dest,
    DB_DATA_STATUS * data_status
)

function numeric_db_value_compare¶

int numeric_db_value_compare (
    const  DB_VALUE * dbv1,
    const  DB_VALUE * dbv2,
    DB_VALUE * answer
)

function numeric_db_value_div¶

int numeric_db_value_div (
    const  DB_VALUE * dbv1,
    const  DB_VALUE * dbv2,
    DB_VALUE * answer
)

function numeric_db_value_increase¶

int numeric_db_value_increase (
    DB_VALUE * arg
)

function numeric_db_value_is_positive¶

int numeric_db_value_is_positive (
    const  DB_VALUE * dbvalue
)

function numeric_db_value_is_zero¶

bool numeric_db_value_is_zero (
    const  DB_VALUE * arg
)

function numeric_db_value_mul¶

int numeric_db_value_mul (
    const  DB_VALUE * dbv1,
    const  DB_VALUE * dbv2,
    DB_VALUE * answer
)

function numeric_db_value_negate¶

int numeric_db_value_negate (
    DB_VALUE * answer
)

function numeric_db_value_print¶

char * numeric_db_value_print (
    const  DB_VALUE * val,
    char * buf
)

function numeric_db_value_sub¶

int numeric_db_value_sub (
    const  DB_VALUE * dbv1,
    const  DB_VALUE * dbv2,
    DB_VALUE * answer
)

function numeric_init_power_value_string¶

void numeric_init_power_value_string (
    void
)

function numeric_internal_double_to_num¶

int numeric_internal_double_to_num (
    double adouble,
    int dst_scale,
    DB_C_NUMERIC num,
    int * prec,
    int * scale
)

function numeric_internal_float_to_num¶

int numeric_internal_float_to_num (
    float afloat,
    int dst_scale,
    DB_C_NUMERIC num,
    int * prec,
    int * scale
)

Public Static Functions Documentation¶

function get_fp_value_type¶

static FP_VALUE_TYPE get_fp_value_type (
    double d
)

function get_significant_digit¶

static int get_significant_digit (
    DB_BIGINT i
)

function numeric_add¶

static void numeric_add (
    DB_C_NUMERIC arg1,
    DB_C_NUMERIC arg2,
    DB_C_NUMERIC answer,
    int size
)

function numeric_add_dec_str¶

static void numeric_add_dec_str (
    DEC_STRING * arg1,
    DEC_STRING * arg2,
    DEC_STRING * answer
)

function numeric_coerce_big_num_to_dec_str¶

static void numeric_coerce_big_num_to_dec_str (
    unsigned  char * num,
    char * dec_str
)

function numeric_common_prec_scale¶

static int numeric_common_prec_scale (
    const  DB_VALUE * dbv1,
    const  DB_VALUE * dbv2,
    DB_VALUE * dbv1_common,
    DB_VALUE * dbv2_common
)

function numeric_compare¶

static int numeric_compare (
    DB_C_NUMERIC arg1,
    DB_C_NUMERIC arg2
)

function numeric_compare_pos¶

static int numeric_compare_pos (
    DB_C_NUMERIC arg1,
    DB_C_NUMERIC arg2
)

function numeric_copy¶

static void numeric_copy (
    DB_C_NUMERIC dest,
    DB_C_NUMERIC source
)

function numeric_copy_long¶

static void numeric_copy_long (
    DB_C_NUMERIC dest,
    DB_C_NUMERIC source,
    bool is_long_num
)

function numeric_decrease¶

static void numeric_decrease (
    DB_C_NUMERIC answer
)

function numeric_div¶

static void numeric_div (
    DB_C_NUMERIC arg1,
    DB_C_NUMERIC arg2,
    DB_C_NUMERIC answer,
    DB_C_NUMERIC remainder
)

function numeric_double_shift_bit¶

static void numeric_double_shift_bit (
    DB_C_NUMERIC arg1,
    DB_C_NUMERIC arg2,
    int numbits,
    DB_C_NUMERIC lsb,
    DB_C_NUMERIC msb,
    bool is_long_num
)

function numeric_fast_convert¶

static int numeric_fast_convert (
    double adouble,
    int dst_scale,
    DB_C_NUMERIC num,
    int * prec,
    int * scale
)

function numeric_get_fractional_part¶

static void numeric_get_fractional_part (
    const  DB_C_NUMERIC num,
    const  int src_scale,
    const  int dst_prec,
    DB_C_NUMERIC dest
)

function numeric_get_integral_part¶

static void numeric_get_integral_part (
    const  DB_C_NUMERIC num,
    const  int src_prec,
    const  int src_scale,
    const  int dst_prec,
    DB_C_NUMERIC dest
)

function numeric_get_msb_for_dec¶

static int numeric_get_msb_for_dec (
    int src_prec,
    int src_scale,
    unsigned  char * src,
    int * dest_prec,
    int * dest_scale,
    DB_C_NUMERIC dest
)

function numeric_get_pow_of_10¶

static DB_C_NUMERIC numeric_get_pow_of_10 (
    int exp
)

function numeric_get_pow_of_2¶

static DEC_STRING * numeric_get_pow_of_2 (
    int exp
)

function numeric_increase¶

static void numeric_increase (
    DB_C_NUMERIC answer
)

function numeric_increase_long¶

static void numeric_increase_long (
    DB_C_NUMERIC answer,
    bool is_long_num
)

function numeric_init_dec_str¶

static void numeric_init_dec_str (
    DEC_STRING * answer
)

function numeric_init_pow_of_10¶

static void numeric_init_pow_of_10 (
    void
)

function numeric_init_pow_of_10_helper¶

static void numeric_init_pow_of_10_helper (
    void
)

function numeric_init_pow_of_2¶

static void numeric_init_pow_of_2 (
    void
)

function numeric_init_pow_of_2_helper¶

static void numeric_init_pow_of_2_helper (
    void
)

function numeric_internal_real_to_num¶

static int numeric_internal_real_to_num (
    double adouble,
    int dst_scale,
    DB_C_NUMERIC num,
    int * prec,
    int * scale,
    bool is_float
)

function numeric_is_bigint¶

static bool numeric_is_bigint (
    DB_C_NUMERIC arg
)

function numeric_is_bit_set¶

static bool numeric_is_bit_set (
    DB_C_NUMERIC arg,
    int pos
)

function numeric_is_fraction_part_zero¶

static bool numeric_is_fraction_part_zero (
    const  DB_C_NUMERIC num,
    const  int scale
)

function numeric_is_long¶

static bool numeric_is_long (
    DB_C_NUMERIC arg
)

function numeric_is_longnum_value¶

static bool numeric_is_longnum_value (
    DB_C_NUMERIC arg
)

function numeric_is_negative¶

static bool numeric_is_negative (
    DB_C_NUMERIC arg
)

function numeric_is_zero¶

static bool numeric_is_zero (
    DB_C_NUMERIC arg
)

function numeric_long_div¶

static void numeric_long_div (
    DB_C_NUMERIC a1,
    DB_C_NUMERIC a2,
    DB_C_NUMERIC answer,
    DB_C_NUMERIC remainder,
    bool is_long_num
)

function numeric_longnum_to_shortnum¶

static int numeric_longnum_to_shortnum (
    DB_C_NUMERIC answer,
    DB_C_NUMERIC long_arg
)

function numeric_mul¶

static void numeric_mul (
    DB_C_NUMERIC a1,
    DB_C_NUMERIC a2,
    bool * positive_flag,
    DB_C_NUMERIC answer
)

function numeric_negate¶

static void numeric_negate (
    DB_C_NUMERIC answer
)

function numeric_negate_long¶

static void numeric_negate_long (
    DB_C_NUMERIC answer,
    bool is_long_num
)

function numeric_negative_one¶

static void numeric_negative_one (
    DB_C_NUMERIC answer,
    int size
)

function numeric_overflow¶

static bool numeric_overflow (
    DB_C_NUMERIC arg,
    int exp
)

function numeric_prec_scale_when_overflow¶

static int numeric_prec_scale_when_overflow (
    const  DB_VALUE * dbv1,
    const  DB_VALUE * dbv2,
    DB_VALUE * dbv1_common,
    DB_VALUE * dbv2_common
)

function numeric_scale_by_ten¶

static int numeric_scale_by_ten (
    DB_C_NUMERIC arg,
    bool is_long_num
)

function numeric_scale_dec¶

static int numeric_scale_dec (
    const  DB_C_NUMERIC arg,
    int dscale,
    DB_C_NUMERIC answer
)

function numeric_scale_dec_long¶

static int numeric_scale_dec_long (
    DB_C_NUMERIC answer,
    int dscale,
    bool is_long_num
)

function numeric_shift_byte¶

static void numeric_shift_byte (
    DB_C_NUMERIC arg,
    int numbytes,
    DB_C_NUMERIC answer,
    int length
)

function numeric_shortnum_to_longnum¶

static void numeric_shortnum_to_longnum (
    DB_C_NUMERIC long_answer,
    DB_C_NUMERIC arg
)

function numeric_sub¶

static void numeric_sub (
    DB_C_NUMERIC arg1,
    DB_C_NUMERIC arg2,
    DB_C_NUMERIC answer,
    int size
)

function numeric_zero¶

static void numeric_zero (
    DB_C_NUMERIC answer,
    int size
)

Macro Definition Documentation¶

define CARRYOVER¶

#define CARRYOVER (
    arg
) `((arg) >> 8)`

define DB_LONG_NUMERIC_MULTIPLIER¶

#define DB_LONG_NUMERIC_MULTIPLIER `2`

define GET_LOWER_BYTE¶

#define GET_LOWER_BYTE (
    arg
) `((arg) & 0xff)`

define NUMERIC_ABS¶

#define NUMERIC_ABS (
    a
) `(( a ) >= 0 ? a : - a )`

define ROUND¶

#define ROUND (
    x
) `(( x ) > 0 ? (( x ) + .5) : (( x ) - .5))`

define SECONDS_IN_A_DAY¶

#define SECONDS_IN_A_DAY `( int )(24 L * 60L * 60L)`

define TWICE_NUM_MAX_PREC¶

#define TWICE_NUM_MAX_PREC `(2* DB_MAX_NUMERIC_PRECISION )`

The documentation for this class was generated from the following file cubrid/src/query/numeric_opfunc.c