The ifx_int8cmp() function

The file int8cmp.ec in the demo directory contains the following sample program.

/*
   * ifx_int8cmp.ec *

    The following program compares INT8s types and displays
    the results.
*/

#include <stdio.h>

EXEC SQL include "int8.h";

char string1[] = "-999,888,777,666";
char string2[] = "-12,345,678,956,546";
char string3[] = "123,456,780,555,224,456";
char string4[] = "123,456,780,555,224,456";
char string5[] = "";

main()
{
    mint x;
    ifx_int8_t num1, num2, num3, num4, num5;

    printf("IFX_INT8CMP Sample ESQL Program running.\n\n");

    if (x = ifx_int8cvasc(string1, strlen(string1), &num1))
        {
        printf("Error %d in converting string1 to int8\n", x);
        exit(1);
        }
    if (x = ifx_int8cvasc(string2, strlen(string2), &num2))
        {
        printf("Error %d in converting string2 to int8\n", x);
        exit(1);
        }
    if (x = ifx_int8cvasc(string3, strlen(string3), &num3))
        {
        printf("Error %d in converting string3 to int8\n", x);
        exit(1);
        }
    if (x = ifx_int8cvasc(string4, strlen(string4), &num4))
        {
        printf("Error %d in converting string4 to int8\n", x);
        exit(1);
        }
    if (x = ifx_int8cvasc(string5, strlen(string5), &num5))
        {
        printf("Error %d in converting string5 to int8\n", x);
        exit(1);
        }
   printf("num1 = %s\nnum2 = %s\n", string1, string2);
    printf("num3 = %s\nnum4 = %s\n", string3, string4);
    printf("num5 = %s\n", "NULL");
    printf("\nExecuting: ifx_int8cmp(&num1, &num2)\n");
    printf("  Result = %d\n", ifx_int8cmp(&num1, &num2));
    printf("Executing: ifx_int8cmp(&num2, &num3)\n");
    printf("  Result = %d\n", ifx_int8cmp(&num2, &num3));
    printf("Executing: ifx_int8cmp(&num1, &num3)\n");
    printf("  Result = %d\n", ifx_int8cmp(&num1, &num3));
    printf("Executing: ifx_int8cmp(&num3, &num4)\n");
    printf("  Result = %d\n", ifx_int8cmp(&num3, &num4));
    printf("Executing: ifx_int8cmp(&num1, &num5)\n");
    x = ifx_int8cmp(&num1, &num5);
    if(x == INT8UNKNOWN)
        printf("RESULT is INT8UNKNOWN.  One of the INT8 values in null.\n");
    else
        printf("  Result = %d\n", x);
    printf("\nIFX_INT8CMP Sample Program over.\n\n");
    exit(0);
}