1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
|
#ifndef PGTYPES_NUMERIC
#define PGTYPES_NUMERIC
#include <pgtypes.h>
#define NUMERIC_POS 0x0000
#define NUMERIC_NEG 0x4000
#define NUMERIC_NAN 0xC000
#define NUMERIC_NULL 0xF000
#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 *var);
void PGTYPESdecimal_free(decimal *var);
numeric *PGTYPESnumeric_from_asc(char *str, char **endptr);
char *PGTYPESnumeric_to_asc(numeric *num, int dscale);
int PGTYPESnumeric_add(numeric *var1, numeric *var2, numeric *result);
int PGTYPESnumeric_sub(numeric *var1, numeric *var2, numeric *result);
int PGTYPESnumeric_mul(numeric *var1, numeric *var2, numeric *result);
int PGTYPESnumeric_div(numeric *var1, numeric *var2, numeric *result);
int PGTYPESnumeric_cmp(numeric *var1, numeric *var2);
int PGTYPESnumeric_from_int(signed int int_val, numeric *var);
int PGTYPESnumeric_from_long(signed long int long_val, numeric *var);
int PGTYPESnumeric_copy(numeric *src, numeric *dst);
int PGTYPESnumeric_from_double(double d, numeric *dst);
int PGTYPESnumeric_to_double(numeric *nv, double *dp);
int PGTYPESnumeric_to_int(numeric *nv, int *ip);
int PGTYPESnumeric_to_long(numeric *nv, long *lp);
int PGTYPESnumeric_to_decimal(numeric *src, decimal *dst);
int PGTYPESnumeric_from_decimal(decimal *src, numeric *dst);
#ifdef __cplusplus
}
#endif
#endif /* PGTYPES_NUMERIC */
|