pgtypeslib-num_test2.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>
/* End of automatic include section */
#define ECPGdebug(X,Y) ECPGdebug((X)+100,(Y))

#line 1 "num_test2.pgc"
#include <stdio.h>
#include <stdlib.h>
#include <pgtypes_numeric.h>
#include <pgtypes_error.h>
#include <decimal.h>


#line 1 "regression.h"






#line 7 "num_test2.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 9 "num_test2.pgc"



char* nums[] = { "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);

int
main(void)
{
    char *text="error\n";
    char *endptr;
    numeric *num, *nin;
    decimal *dec;
    long l;
    int i, j, k, q, r, count = 0;
    double d;
    numeric **numarr = (numeric **) calloc(1, sizeof(numeric));

    ECPGdebug(1, stderr);

    for (i = 0; nums[i]; i++)
    {
        num = PGTYPESnumeric_from_asc(nums[i], &endptr);
        if (!num) check_errno();
        if (endptr != NULL)
        {
            printf("endptr of %d is not NULL\n", i);
            if (*endptr != '\0')
                printf("*endptr of %d is not \\0\n", i);
        }
        if (!num) continue;

        numarr = realloc(numarr, sizeof(numeric *) * (count + 1));
        numarr[count++] = num;

        text = PGTYPESnumeric_to_asc(num, -1);
        if (!text) check_errno();
        printf("num[%d,1]: %s\n", i, text); PGTYPESchar_free(text);
        text = PGTYPESnumeric_to_asc(num, 0);
        if (!text) check_errno();
        printf("num[%d,2]: %s\n", i, text); PGTYPESchar_free(text);
        text = PGTYPESnumeric_to_asc(num, 1);
        if (!text) check_errno();
        printf("num[%d,3]: %s\n", i, text); PGTYPESchar_free(text);
        text = PGTYPESnumeric_to_asc(num, 2);
        if (!text) check_errno();
        printf("num[%d,4]: %s\n", i, text); PGTYPESchar_free(text);

        nin = PGTYPESnumeric_new();
        text = PGTYPESnumeric_to_asc(nin, 2);
        if (!text) check_errno();
        printf("num[%d,5]: %s\n", i, text); PGTYPESchar_free(text);

        r = PGTYPESnumeric_to_long(num, &l);
        if (r) check_errno();
        printf("num[%d,6]: %ld (r: %d)\n", i, r?0L:l, r);
        if (r == 0)
        {
            r = PGTYPESnumeric_from_long(l, nin);
            if (r) check_errno();
            text = PGTYPESnumeric_to_asc(nin, 2);
            q = PGTYPESnumeric_cmp(num, nin);
            printf("num[%d,7]: %s (r: %d - cmp: %d)\n", i, text, r, q);
            PGTYPESchar_free(text);
        }

        r = PGTYPESnumeric_to_int(num, &k);
        if (r) check_errno();
        printf("num[%d,8]: %d (r: %d)\n", i, r?0:k, r);
        if (r == 0)
        {
            r = PGTYPESnumeric_from_int(k, nin);
            if (r) check_errno();
            text = PGTYPESnumeric_to_asc(nin, 2);
            q = PGTYPESnumeric_cmp(num, nin);
            printf("num[%d,9]: %s (r: %d - cmp: %d)\n", i, text, r, q);
            PGTYPESchar_free(text);
        }

        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 = PGTYPESnumeric_to_double(num, &d);
            if (r) check_errno();
            printf("num[%d,10]: ", i);
            print_double(r ? 0.0 : d);
            printf(" (r: %d)\n", r);
        }

        /* do not test double to numeric because
         * - extra digits are different on different architectures
         * - PGTYPESnumeric_from_double internally calls PGTYPESnumeric_from_asc anyway
         */

        dec = PGTYPESdecimal_new();
        r = PGTYPESnumeric_to_decimal(num, dec);
        if (r) check_errno();
        /* we have no special routine for outputting decimal, it would
         * convert to a numeric anyway */
        printf("num[%d,11]: - (r: %d)\n", i, r);
        if (r == 0)
        {
            r = PGTYPESnumeric_from_decimal(dec, nin);
            if (r) check_errno();
            text = PGTYPESnumeric_to_asc(nin, 2);
            q = PGTYPESnumeric_cmp(num, nin);
            printf("num[%d,12]: %s (r: %d - cmp: %d)\n", i, text, r, q);
            PGTYPESchar_free(text);
        }

        PGTYPESdecimal_free(dec);
        PGTYPESnumeric_free(nin);
        printf("\n");
    }

    for (i = 0; i < count; i++)
    {
        for (j = 0; j < count; j++)
        {
            numeric* a = PGTYPESnumeric_new();
            numeric* s = PGTYPESnumeric_new();
            numeric* m = PGTYPESnumeric_new();
            numeric* d = PGTYPESnumeric_new();
            r = PGTYPESnumeric_add(numarr[i], numarr[j], a);
            if (r)
            {
                check_errno();
                printf("r: %d\n", r);
            }
            else
            {
                text = PGTYPESnumeric_to_asc(a, 10);
                printf("num[a,%d,%d]: %s\n", i, j, text);
                PGTYPESchar_free(text);
            }
            r = PGTYPESnumeric_sub(numarr[i], numarr[j], s);
            if (r)
            {
                check_errno();
                printf("r: %d\n", r);
            }
            else
            {
                text = PGTYPESnumeric_to_asc(s, 10);
                printf("num[s,%d,%d]: %s\n", i, j, text);
                PGTYPESchar_free(text);
            }
            r = PGTYPESnumeric_mul(numarr[i], numarr[j], m);
            if (r)
            {
                check_errno();
                printf("r: %d\n", r);
            }
            else
            {
                text = PGTYPESnumeric_to_asc(m, 10);
                printf("num[m,%d,%d]: %s\n", i, j, text);
                PGTYPESchar_free(text);
            }
            r = PGTYPESnumeric_div(numarr[i], numarr[j], d);
            if (r)
            {
                check_errno();
                printf("r: %d\n", r);
            }
            else
            {
                text = PGTYPESnumeric_to_asc(d, 10);
                printf("num[d,%d,%d]: %s\n", i, j, text);
                PGTYPESchar_free(text);
            }

            PGTYPESnumeric_free(a);
            PGTYPESnumeric_free(s);
            PGTYPESnumeric_free(m);
            PGTYPESnumeric_free(d);
        }
    }

    for (i = 0; i < count; i++)
    {
        text = PGTYPESnumeric_to_asc(numarr[i], -1);
        printf("%d: %s\n", i, text);
        PGTYPESchar_free(text);
        PGTYPESnumeric_free(numarr[i]);
    }
    free(numarr);

    return 0;
}

static void
check_errno(void)
{
    switch(errno)
    {
        case 0:
            printf("(no errno set) - ");
            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;
    }

}