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mirror of https://github.com/postgres/postgres.git synced 2025-07-05 07:21:24 +03:00

Use ISO dates in pgtypeslib by default.

Applied patch by Philip Yarra to fix some thread issues.
Added a new data type "decimal" which is mostly the same as our
	"numeric" but uses a fixed length array to store the digits. This is
	for compatibility with Informix and maybe others.
This commit is contained in:
Michael Meskes
2003-07-01 12:40:52 +00:00
parent f973b74583
commit 2bdd2e5dcf
18 changed files with 380 additions and 175 deletions

View File

@ -11,50 +11,115 @@
char * ECPGalloc(long, int);
/* we start with the numeric functions */
int
decadd(Numeric *arg1, Numeric *arg2, Numeric *sum)
static int
deccall2(Decimal *arg1, Decimal *arg2, int (*ptr)(Numeric *, Numeric *))
{
Numeric *temp_sum = malloc(sizeof(Numeric)) ;
Numeric *a1, *a2;
int i;
if (temp_sum == NULL)
if ((a1 = PGTYPESnumeric_new()) == NULL)
return -1211;
i = PGTYPESnumeric_add(arg1, arg2, temp_sum);
if (i == 0) /* No error */
if ((a2 = PGTYPESnumeric_new()) == NULL)
{
if (PGTYPESnumeric_copy(temp_sum, sum) !=0)
return -1211;
free(temp_sum);
return 0;
}
else
{
free(temp_sum);
if (errno == PGTYPES_NUM_OVERFLOW)
return -1200;
PGTYPESnumeric_free(a1);
return -1211;
}
return -1201;
}
int
deccmp(Numeric *arg1, Numeric *arg2)
{
int i = PGTYPESnumeric_cmp(arg1, arg2);
if (PGTYPESnumeric_from_decimal(arg1, a1) != 0)
{
PGTYPESnumeric_free(a1);
PGTYPESnumeric_free(a2);
return -1211;
}
if (PGTYPESnumeric_from_decimal(arg2, a2) != 0)
{
PGTYPESnumeric_free(a1);
PGTYPESnumeric_free(a2);
return -1211;
}
i = (*ptr)(a1, a2);
PGTYPESnumeric_free(a1);
PGTYPESnumeric_free(a2);
return (i);
}
void
deccopy(Numeric *src, Numeric *target)
static int
deccall3(Decimal *arg1, Decimal *arg2, Decimal *result, int (*ptr)(Numeric *, Numeric *, Numeric *))
{
PGTYPESnumeric_copy(src, target);
Numeric *a1, *a2, *nres;
int i;
if ((a1 = PGTYPESnumeric_new()) == NULL)
return -1211;
if ((a2 = PGTYPESnumeric_new()) == NULL)
{
PGTYPESnumeric_free(a1);
return -1211;
}
if ((nres = PGTYPESnumeric_new()) == NULL)
{
PGTYPESnumeric_free(a1);
PGTYPESnumeric_free(a2);
return -1211;
}
if (PGTYPESnumeric_from_decimal(arg1, a1) != 0)
{
PGTYPESnumeric_free(a1);
PGTYPESnumeric_free(a2);
PGTYPESnumeric_free(nres);
return -1211;
}
if (PGTYPESnumeric_from_decimal(arg2, a2) != 0)
{
PGTYPESnumeric_free(a1);
PGTYPESnumeric_free(a2);
PGTYPESnumeric_free(nres);
return -1211;
}
i = (*ptr)(a1, a2, nres);
if (i == 0) /* No error */
PGTYPESnumeric_to_decimal(nres, result);
PGTYPESnumeric_free(nres);
PGTYPESnumeric_free(a1);
PGTYPESnumeric_free(a2);
return (i);
}
/* we start with the numeric functions */
int
decadd(Decimal *arg1, Decimal *arg2, Decimal *sum)
{
deccall3(arg1, arg2, sum, PGTYPESnumeric_add);
if (errno == PGTYPES_NUM_OVERFLOW)
return -1200;
else if (errno != 0)
return -1201;
else return 0;
}
int
deccmp(Decimal *arg1, Decimal *arg2)
{
return(deccall2(arg1, arg2, PGTYPESnumeric_cmp));
}
void
deccopy(Decimal *src, Decimal *target)
{
memcpy(target, src, sizeof(Decimal));
}
static char *
@ -77,12 +142,13 @@ strndup(const char *str, size_t len)
}
int
deccvasc(char *cp, int len, Numeric *np)
deccvasc(char *cp, int len, Decimal *np)
{
char *str = strndup(cp, len); /* Numeric_in always converts the complete string */
char *str = strndup(cp, len); /* Decimal_in always converts the complete string */
int ret = 0;
Numeric *result;
if (!str)
ret = -1201;
else
@ -102,129 +168,136 @@ deccvasc(char *cp, int len, Numeric *np)
}
else
{
if (PGTYPESnumeric_copy(result, np) !=0)
ret = -1211;
if (PGTYPESnumeric_to_decimal(result, np) !=0)
ret = -1200;
free(result);
}
}
free(str);
return ret;
}
int
deccvdbl(double dbl, Numeric *np)
deccvdbl(double dbl, Decimal *np)
{
return(PGTYPESnumeric_from_double(dbl, np));
}
int
deccvint(int in, Numeric *np)
{
return(PGTYPESnumeric_from_int(in, np));
}
int
deccvlong(long lng, Numeric *np)
{
return(PGTYPESnumeric_from_long(lng, np));
}
int
decdiv(Numeric *n1, Numeric *n2, Numeric *n3)
{
Numeric *temp = malloc(sizeof(Numeric));
int i, ret = 0;
if (temp == NULL)
return -1211;
Numeric *nres = PGTYPESnumeric_new();
int result = 1;
i = PGTYPESnumeric_div(n1, n2, temp);
if (nres == NULL)
return -1211;
result = PGTYPESnumeric_from_double(dbl, nres);
if (result == 0)
result = PGTYPESnumeric_to_decimal(nres, np);
PGTYPESnumeric_free(nres);
return(result);
}
int
deccvint(int in, Decimal *np)
{
Numeric *nres = PGTYPESnumeric_new();
int result = 1;
if (nres == NULL)
return -1211;
result = PGTYPESnumeric_from_int(in, nres);
if (result == 0)
result = PGTYPESnumeric_to_decimal(nres, np);
PGTYPESnumeric_free(nres);
return(result);
}
int
deccvlong(long lng, Decimal *np)
{
Numeric *nres = PGTYPESnumeric_new();
int result = 1;
if (nres == NULL)
return -1211;
result = PGTYPESnumeric_from_long(lng, nres);
if (result == 0)
result = PGTYPESnumeric_to_decimal(nres, np);
PGTYPESnumeric_free(nres);
return(result);
}
int
decdiv(Decimal *n1, Decimal *n2, Decimal *n3)
{
int i = deccall3(n1, n2, n3, PGTYPESnumeric_div);
if (i != 0)
switch (errno)
{
case PGTYPES_NUM_DIVIDE_ZERO: ret = -1202;
case PGTYPES_NUM_DIVIDE_ZERO: return -1202;
break;
case PGTYPES_NUM_OVERFLOW: ret = -1200;
case PGTYPES_NUM_OVERFLOW: return -1200;
break;
default: ret = -1201;
default: return -1201;
break;
}
else
if (PGTYPESnumeric_copy(temp, n3) !=0)
ret = -1211;
free(temp);
return ret;
return 0;
}
int
decmul(Numeric *n1, Numeric *n2, Numeric *n3)
decmul(Decimal *n1, Decimal *n2, Decimal *n3)
{
Numeric *temp = malloc(sizeof(Numeric));
int i, ret = 0;
int i = deccall3(n1, n2, n3, PGTYPESnumeric_mul);
if (temp == NULL)
return -1211;
i = PGTYPESnumeric_mul(n1, n2, temp);
if (i != 0)
switch (errno)
{
case PGTYPES_NUM_OVERFLOW: return -1200;
break;
default: return -1201;
break;
}
return 0;
}
int
decsub(Decimal *n1, Decimal *n2, Decimal *n3)
{
int i = deccall3(n1, n2, n3, PGTYPESnumeric_sub);
if (i != 0)
switch (errno)
{
case PGTYPES_NUM_OVERFLOW: ret = -1200;
case PGTYPES_NUM_OVERFLOW: return -1200;
break;
default: ret = -1201;
default: return -1201;
break;
}
else
if (PGTYPESnumeric_copy(temp, n3) !=0)
ret = -1211;
free(temp);
return ret;
return 0;
}
int
decsub(Numeric *n1, Numeric *n2, Numeric *n3)
{
Numeric *temp = malloc(sizeof(Numeric));
int i, ret = 0;
if (temp == NULL)
return -1211;
i = PGTYPESnumeric_sub(n1, n2, temp);
if (i != 0)
switch (errno)
{
case PGTYPES_NUM_OVERFLOW: ret = -1200;
break;
default: ret = -1201;
break;
}
else
if (PGTYPESnumeric_copy(temp, n3) !=0)
ret = -1211;
free(temp);
return ret;
}
int
dectoasc(Numeric *np, char *cp, int len, int right)
dectoasc(Decimal *np, char *cp, int len, int right)
{
char *str;
Numeric *nres;
if (PGTYPESnumeric_from_decimal(np, nres) != 0)
return -1211;
if (right >= 0)
str = PGTYPESnumeric_to_asc(np, right);
str = PGTYPESnumeric_to_asc(nres, right);
else
str = PGTYPESnumeric_to_asc(np, 0);
str = PGTYPESnumeric_to_asc(nres, 0);
PGTYPESnumeric_free(nres);
if (!str)
return -1;
@ -236,15 +309,36 @@ dectoasc(Numeric *np, char *cp, int len, int right)
}
int
dectodbl(Numeric *np, double *dblp)
dectodbl(Decimal *np, double *dblp)
{
return(PGTYPESnumeric_to_double(np, dblp));
Numeric *nres = PGTYPESnumeric_new();;
int i;
if (nres == NULL)
return -1211;
if (PGTYPESnumeric_from_decimal(np, nres) != 0)
return -1211;
i = PGTYPESnumeric_to_double(nres, dblp);
PGTYPESnumeric_free(nres);
return i;
}
int
dectoint(Numeric *np, int *ip)
dectoint(Decimal *np, int *ip)
{
int ret = PGTYPESnumeric_to_int(np, ip);
int ret;
Numeric *nres = PGTYPESnumeric_new();
if (nres == NULL)
return -1211;
if (PGTYPESnumeric_from_decimal(np, nres) != 0)
return -1211;
ret = PGTYPESnumeric_to_int(nres, ip);
if (ret == PGTYPES_NUM_OVERFLOW)
ret = -1200;
@ -253,9 +347,18 @@ dectoint(Numeric *np, int *ip)
}
int
dectolong(Numeric *np, long *lngp)
dectolong(Decimal *np, long *lngp)
{
int ret = PGTYPESnumeric_to_long(np, lngp);
int ret;
Numeric *nres = PGTYPESnumeric_new();;
if (nres == NULL)
return -1211;
if (PGTYPESnumeric_from_decimal(np, nres) != 0)
return -1211;
ret = PGTYPESnumeric_to_long(nres, lngp);
if (ret == PGTYPES_NUM_OVERFLOW)
ret = -1200;