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/*
* Test cases for dealing with SQL_NUMERIC_STRUCT
*/
#include <stdio.h>
#include <stdlib.h>
#include "common.h"
static unsigned char
hex_to_int(char c)
{
char result;
if (c >= '0' && c <= '9')
result = c - '0';
else if (c >= 'a' && c <= 'f')
result = c - 'a' + 10;
else if (c >= 'A' && c <= 'F')
result = c - 'A' + 10;
else
{
fprintf(stderr, "invalid hex-encoded numeric value\n");
exit(1);
}
return (unsigned char) result;
}
static void
build_numeric_struct(SQL_NUMERIC_STRUCT *numericparam,
unsigned char sign, char *hexstr,
unsigned char precision, unsigned char scale)
{
int len;
/* parse the hex-encoded value */
memset(numericparam, 0, sizeof(SQL_NUMERIC_STRUCT));
numericparam->sign = sign;
numericparam->precision = precision;
numericparam->scale = scale;
len = 0;
while (*hexstr)
{
if (*hexstr == ' ')
{
hexstr++;
continue;
}
if (len >= SQL_MAX_NUMERIC_LEN)
{
fprintf(stderr, "hex-encoded numeric value too long\n");
exit(1);
}
numericparam->val[len] =
hex_to_int(*hexstr) << 4 | hex_to_int(*(hexstr + 1));
hexstr += 2;
len++;
}
}
static void
test_numeric_param(HSTMT hstmt, unsigned char sign, char *hexval,
unsigned char precision, unsigned char scale)
{
SQL_NUMERIC_STRUCT numericparam;
SQLLEN cbParam1;
SQLRETURN rc;
char buf[200];
build_numeric_struct(&numericparam, sign, hexval, precision, scale);
cbParam1 = sizeof(numericparam);
rc = SQLBindParameter(hstmt, 1, SQL_PARAM_INPUT,
SQL_C_NUMERIC, /* value type */
SQL_NUMERIC, /* param type */
0, /* column size (ignored for SQL_INTERVAL_SECOND) */
0, /* dec digits */
&numericparam, /* param value ptr */
sizeof(numericparam), /* buffer len (ignored for SQL_C_INTERVAL_SECOND) */
&cbParam1 /* StrLen_or_IndPtr (ignored for SQL_C_INTERVAL_SECOND) */);
CHECK_STMT_RESULT(rc, "SQLBindParameter failed", hstmt);
/* Execute */
rc = SQLExecute(hstmt);
if (!SQL_SUCCEEDED(rc))
{
print_diag("SQLExecute failed", SQL_HANDLE_STMT, hstmt);
}
else
{
/* print result */
rc = SQLFetch(hstmt);
CHECK_STMT_RESULT(rc, "SQLFetch failed", hstmt);
rc = SQLGetData(hstmt, 1, SQL_C_CHAR, buf, sizeof(buf), NULL);
CHECK_STMT_RESULT(rc, "SQLGetData failed", hstmt);
printf("sign %u prec %u scale %d val %s:\n %s\n",
sign, precision, scale, hexval, buf);
}
rc = SQLFreeStmt(hstmt, SQL_CLOSE);
CHECK_STMT_RESULT(rc, "SQLFreeStmt failed", hstmt);
}
static void
test_numeric_result(HSTMT hstmt, char *numstr)
{
char sql[100];
SQL_NUMERIC_STRUCT numericres;
SQLRETURN rc;
/*
* assume 'numstr' param to be well-formed (we're testing how the
* results come out, not the input handling)
*/
snprintf(sql, sizeof(sql), "SELECT '%s'::numeric", numstr);
rc = SQLExecDirect(hstmt, (SQLCHAR *) sql, SQL_NTS);
CHECK_STMT_RESULT(rc, "SQLExecDirect failed", hstmt);
rc = SQLFetch(hstmt);
CHECK_STMT_RESULT(rc, "SQLFetch failed", hstmt);
rc = SQLGetData(hstmt, 1, SQL_C_NUMERIC, &numericres, sizeof(numericres), NULL);
CHECK_STMT_RESULT(rc, "SQLGetData failed", hstmt);
printf("%s:\n sign %u prec %u scale %d val %02X%02X%02X%02X%02X%02X%02X%02X%02X%02X%02X%02X%02X%02X%02X%02X\n",
numstr, numericres.sign, numericres.precision, numericres.scale,
numericres.val[0], numericres.val[1],
numericres.val[2], numericres.val[3],
numericres.val[4], numericres.val[5],
numericres.val[6], numericres.val[7],
numericres.val[8], numericres.val[9],
numericres.val[10], numericres.val[11],
numericres.val[12], numericres.val[13],
numericres.val[14], numericres.val[15]);
rc = SQLFreeStmt(hstmt, SQL_CLOSE);
CHECK_STMT_RESULT(rc, "SQLFreeStmt failed", hstmt);
}
int main(int argc, char **argv)
{
SQLRETURN rc;
HSTMT hstmt = SQL_NULL_HSTMT;
test_connect();
rc = SQLAllocHandle(SQL_HANDLE_STMT, conn, &hstmt);
if (!SQL_SUCCEEDED(rc))
{
print_diag("failed to allocate stmt handle", SQL_HANDLE_DBC, conn);
exit(1);
}
/**** Test binding SQL_NUMERIC_STRUCT params (SQL_C_NUMERIC) ****/
printf("Testing SQL_NUMERIC_STRUCT params...\n\n");
rc = SQLPrepare(hstmt, (SQLCHAR *) "SELECT ?::numeric", SQL_NTS);
CHECK_STMT_RESULT(rc, "SQLPrepare failed", hstmt);
/* 25.212 (per Microsoft KB 22831) */
test_numeric_param(hstmt, 1, "7C62", 5, 3);
/* 24197857161011715162171839636988778104 */
test_numeric_param(hstmt, 1, "78563412 78563412 78563412 78563412", 41, 0);
/* 12345678901234567890123456789012345678 */
test_numeric_param(hstmt, 1, "4EF338DE509049C4133302F0F6B04909", 38, 0);
/* highest possible non-scaled: 340282366920938463463374607431768211455 */
test_numeric_param(hstmt, 1, "FFFFFFFF FFFFFFFF FFFFFFFF FFFFFFFF", 50, 0);
/* positive and negative zero */
test_numeric_param(hstmt, 1, "00", 1, 0);
test_numeric_param(hstmt, 0, "00", 1, 0);
/* -7.70 */
test_numeric_param(hstmt, 1, "0203", 3, 2);
/* 0.12345, with 1-6 digit precision: */
test_numeric_param(hstmt, 1, "3930", 1, 5);
test_numeric_param(hstmt, 1, "3930", 2, 5);
test_numeric_param(hstmt, 1, "3930", 3, 5);
test_numeric_param(hstmt, 1, "3930", 4, 5);
test_numeric_param(hstmt, 1, "3930", 5, 5);
test_numeric_param(hstmt, 1, "3930", 6, 5);
/* large scale with small value */
test_numeric_param(hstmt, 1, "0203", 3, 50);
/* medium-sized scale and precision */
test_numeric_param(hstmt, 1, "0203", 25, 80);
/* max length output; negative with max scale and decimal dot */
test_numeric_param(hstmt, 0, "FFFFFFFF FFFFFFFF FFFFFFFF FFFFFFFF", 40, 127);
/* large scale with small value */
test_numeric_param(hstmt, 1, "0203", 3, 50);
/**** Test fetching SQL_NUMERIC_STRUCT results ****/
printf("Testing SQL_NUMERIC_STRUCT results...\n\n");
test_numeric_result(hstmt, "25.212");
test_numeric_result(hstmt, "24197857161011715162171839636988778104");
test_numeric_result(hstmt, "12345678901234567890123456789012345678");
/* highest number */
test_numeric_result(hstmt, "340282366920938463463374607431768211455");
/* overflow */
test_numeric_result(hstmt, "340282366920938463463374607431768211456");
test_numeric_result(hstmt, "340282366920938463463374607431768211457");
test_numeric_result(hstmt, "-0");
test_numeric_result(hstmt, "0");
test_numeric_result(hstmt, "-7.70");
test_numeric_result(hstmt, "999999999999");
/* Clean up */
test_disconnect();
return 0;
}
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