compat_informix-dec_test.c

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/* Processed by ecpg (regression mode) */
/* These include files are added by the preprocessor */
#include <ecpglib.h>
#include <ecpgerrno.h>
#include <sqlca.h>
/* Needed for informix compatibility */
#include <ecpg_informix.h>
/* End of automatic include section */
#define ECPGdebug(X,Y) ECPGdebug((X)+100,(Y))
 
#line 1 "dec_test.pgc"
#include <stdio.h>
#include <stdlib.h>
#include <pgtypes_numeric.h>
#include <pgtypes_error.h>
#include <decimal.h>
#include <sqltypes.h>
 
 
#line 1 "regression.h"
 
 
 
 
 
 
#line 8 "dec_test.pgc"
 
 
 
#line 1 "printf_hack.h"
/*
 * print_double(x) has the same effect as printf("%g", x), but is intended
 * to produce the same formatting across all platforms.
 */
static void
print_double(double x)
{
#ifdef WIN32
    /* Change Windows' 3-digit exponents to look like everyone else's */
    char        convert[128];
    int         vallen;
 
    sprintf(convert, "%g", x);
    vallen = strlen(convert);
 
    if (vallen >= 6 &&
        convert[vallen - 5] == 'e' &&
        convert[vallen - 3] == '0')
    {
        convert[vallen - 3] = convert[vallen - 2];
        convert[vallen - 2] = convert[vallen - 1];
        convert[vallen - 1] = '\0';
    }
 
    printf("%s", convert);
#else
    printf("%g", x);
#endif
}
 
#line 10 "dec_test.pgc"
 
 
 
/*
TODO:
    deccmp => DECUNKNOWN
    decimal point: , and/or . ?
    ECPG_INFORMIX_BAD_EXPONENT ?
*/
 
char* decs[] = { "2E394", "-2", ".794", "3.44", "592.49E21", "-32.84e4",
                 "2E-394", ".1E-2", "+.0", "-592.49E-07", "+32.84e-4",
                 ".500001", "-.5000001",
                 "1234567890123456789012345678.91", /* 30 digits should fit
                                                       into decimal */
                 "1234567890123456789012345678.921", /* 31 digits should NOT
                                                        fit into decimal */
                 "not a number",
                 NULL};
 
 
static void
check_errno(void);
 
#define BUFSIZE 200
 
int
main(void)
{
    decimal *dec, *din;
    char buf[BUFSIZE];
    long l;
    int i, j, k, q, r, count = 0;
    double dbl;
    decimal **decarr = (decimal **) calloc(1, sizeof(decimal));
 
    ECPGdebug(1, stderr);
 
    for (i = 0; decs[i]; i++)
    {
        dec = PGTYPESdecimal_new();
        r = deccvasc(decs[i], strlen(decs[i]), dec);
        if (r)
        {
            check_errno();
            printf("dec[%d,0]: r: %d\n", i, r);
            PGTYPESdecimal_free(dec);
            continue;
        }
        decarr = realloc(decarr, sizeof(decimal *) * (count + 1));
        decarr[count++] = dec;
 
        r = dectoasc(dec, buf, BUFSIZE-1, -1);
        if (r < 0) check_errno();
        printf("dec[%d,1]: r: %d, %s\n", i, r, buf);
 
        r = dectoasc(dec, buf, BUFSIZE-1, 0);
        if (r < 0) check_errno();
        printf("dec[%d,2]: r: %d, %s\n", i, r, buf);
        r = dectoasc(dec, buf, BUFSIZE-1, 1);
        if (r < 0) check_errno();
        printf("dec[%d,3]: r: %d, %s\n", i, r, buf);
        r = dectoasc(dec, buf, BUFSIZE-1, 2);
        if (r < 0) check_errno();
        printf("dec[%d,4]: r: %d, %s\n", i, r, buf);
 
        din = PGTYPESdecimal_new();
        r = dectoasc(din, buf, BUFSIZE-1, 2);
        if (r < 0) check_errno();
        printf("dec[%d,5]: r: %d, %s\n", i, r, buf);
 
        r = dectolong(dec, &l);
        if (r) check_errno();
        printf("dec[%d,6]: %ld (r: %d)\n", i, r?0L:l, r);
        if (r == 0)
        {
            r = deccvlong(l, din);
            if (r) check_errno();
            dectoasc(din, buf, BUFSIZE-1, 2);
            q = deccmp(dec, din);
            printf("dec[%d,7]: %s (r: %d - cmp: %d)\n", i, buf, r, q);
        }
 
        r = dectoint(dec, &k);
        if (r) check_errno();
        printf("dec[%d,8]: %d (r: %d)\n", i, r?0:k, r);
        if (r == 0)
        {
            r = deccvint(k, din);
            if (r) check_errno();
            dectoasc(din, buf, BUFSIZE-1, 2);
            q = deccmp(dec, din);
            printf("dec[%d,9]: %s (r: %d - cmp: %d)\n", i, buf, r, q);
        }
 
        if (i != 6)
        {
            /* underflow does not work reliable on several archs, so not testing it here */
            /* this is a libc problem since we only call strtod() */
            r = dectodbl(dec, &dbl);
            if (r) check_errno();
            printf("dec[%d,10]: ", i);
            print_double(r ? 0.0 : dbl);
            printf(" (r: %d)\n", r);
        }
 
        PGTYPESdecimal_free(din);
        printf("\n");
    }
 
    /* add a NULL value */
    dec = PGTYPESdecimal_new();
    decarr = realloc(decarr, sizeof(decimal *) * (count + 1));
    decarr[count++] = dec;
 
    rsetnull(CDECIMALTYPE, (char *) decarr[count-1]);
    printf("dec[%d]: %sNULL\n", count-1,
        risnull(CDECIMALTYPE, (char *) decarr[count-1]) ? "" : "NOT ");
    printf("dec[0]: %sNULL\n",
        risnull(CDECIMALTYPE, (char *) decarr[0]) ? "" : "NOT ");
 
    r = dectoasc(decarr[3], buf, -1, -1);
    check_errno(); printf("dectoasc with len == -1: r: %d\n", r);
    r = dectoasc(decarr[3], buf, 0, -1);
    check_errno(); printf("dectoasc with len == 0: r: %d\n", r);
 
    for (i = 0; i < count; i++)
    {
        for (j = 0; j < count; j++)
        {
            decimal a, s, m, d;
            int c;
            c = deccmp(decarr[i], decarr[j]);
            printf("dec[c,%d,%d]: %d\n", i, j, c);
 
            r = decadd(decarr[i], decarr[j], &a);
            if (r)
            {
                check_errno();
                printf("r: %d\n", r);
            }
            else
            {
                dectoasc(&a, buf, BUFSIZE-1, -1);
                printf("dec[a,%d,%d]: %s\n", i, j, buf);
            }
 
            r = decsub(decarr[i], decarr[j], &s);
            if (r)
            {
                check_errno();
                printf("r: %d\n", r);
            }
            else
            {
                dectoasc(&s, buf, BUFSIZE-1, -1);
                printf("dec[s,%d,%d]: %s\n", i, j, buf);
            }
 
            r = decmul(decarr[i], decarr[j], &m);
            if (r)
            {
                check_errno();
                printf("r: %d\n", r);
            }
            else
            {
                dectoasc(&m, buf, BUFSIZE-1, -1);
                printf("dec[m,%d,%d]: %s\n", i, j, buf);
            }
 
            r = decdiv(decarr[i], decarr[j], &d);
            if (r)
            {
                check_errno();
                printf("r: %d\n", r);
            }
            else
            {
                dectoasc(&d, buf, BUFSIZE-1, -1);
                printf("dec[d,%d,%d]: %s\n", i, j, buf);
            }
        }
    }
 
    for (i = 0; i < count; i++)
    {
        dectoasc(decarr[i], buf, BUFSIZE-1, -1);
        printf("%d: %s\n", i, buf);
 
        PGTYPESdecimal_free(decarr[i]);
    }
    free(decarr);
 
    return 0;
}
 
static void
check_errno(void)
{
    switch(errno)
    {
        case 0:
            printf("(no errno set) - ");
            break;
        case ECPG_INFORMIX_NUM_OVERFLOW:
            printf("(errno == ECPG_INFORMIX_NUM_OVERFLOW) - ");
            break;
        case ECPG_INFORMIX_NUM_UNDERFLOW:
            printf("(errno == ECPG_INFORMIX_NUM_UNDERFLOW) - ");
            break;
        case PGTYPES_NUM_OVERFLOW:
            printf("(errno == PGTYPES_NUM_OVERFLOW) - ");
            break;
        case PGTYPES_NUM_UNDERFLOW:
            printf("(errno == PGTYPES_NUM_UNDERFLOW) - ");
            break;
        case PGTYPES_NUM_BAD_NUMERIC:
            printf("(errno == PGTYPES_NUM_BAD_NUMERIC) - ");
            break;
        case PGTYPES_NUM_DIVIDE_ZERO:
            printf("(errno == PGTYPES_NUM_DIVIDE_ZERO) - ");
            break;
        default:
            printf("(unknown errno (%d))\n", errno);
            printf("(libc: (%s)) ", strerror(errno));
            break;
    }
}