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| Current File : //usr/local/include/pgtypes_numeric.h |
/* $PostgreSQL: pgsql/src/interfaces/ecpg/include/pgtypes_numeric.h,v 1.16 2006/08/09 07:30:56 meskes Exp $ */
#ifndef PGTYPES_NUMERIC
#define PGTYPES_NUMERIC
#define NUMERIC_POS 0x0000
#define NUMERIC_NEG 0x4000
#define NUMERIC_NAN 0xC000
#define NUMERIC_MAX_PRECISION 1000
#define NUMERIC_MAX_DISPLAY_SCALE NUMERIC_MAX_PRECISION
#define NUMERIC_MIN_DISPLAY_SCALE 0
#define NUMERIC_MIN_SIG_DIGITS 16
#define DECSIZE 30
typedef unsigned char NumericDigit;
typedef struct
{
int ndigits; /* number of digits in digits[] - can be 0! */
int weight; /* weight of first digit */
int rscale; /* result scale */
int dscale; /* display scale */
int sign; /* NUMERIC_POS, NUMERIC_NEG, or NUMERIC_NAN */
NumericDigit *buf; /* start of alloc'd space for digits[] */
NumericDigit *digits; /* decimal digits */
} numeric;
typedef struct
{
int ndigits; /* number of digits in digits[] - can be 0! */
int weight; /* weight of first digit */
int rscale; /* result scale */
int dscale; /* display scale */
int sign; /* NUMERIC_POS, NUMERIC_NEG, or NUMERIC_NAN */
NumericDigit digits[DECSIZE]; /* decimal digits */
} decimal;
#ifdef __cplusplus
extern "C"
{
#endif
numeric *PGTYPESnumeric_new(void);
decimal *PGTYPESdecimal_new(void);
void PGTYPESnumeric_free(numeric *);
void PGTYPESdecimal_free(decimal *);
numeric *PGTYPESnumeric_from_asc(char *, char **);
char *PGTYPESnumeric_to_asc(numeric *, int);
int PGTYPESnumeric_add(numeric *, numeric *, numeric *);
int PGTYPESnumeric_sub(numeric *, numeric *, numeric *);
int PGTYPESnumeric_mul(numeric *, numeric *, numeric *);
int PGTYPESnumeric_div(numeric *, numeric *, numeric *);
int PGTYPESnumeric_cmp(numeric *, numeric *);
int PGTYPESnumeric_from_int(signed int, numeric *);
int PGTYPESnumeric_from_long(signed long int, numeric *);
int PGTYPESnumeric_copy(numeric *, numeric *);
int PGTYPESnumeric_from_double(double, numeric *);
int PGTYPESnumeric_to_double(numeric *, double *);
int PGTYPESnumeric_to_int(numeric *, int *);
int PGTYPESnumeric_to_long(numeric *, long *);
int PGTYPESnumeric_to_decimal(numeric *, decimal *);
int PGTYPESnumeric_from_decimal(decimal *, numeric *);
#ifdef __cplusplus
}
#endif
#endif /* PGTYPES_NUMERIC */