The ifx_int8toflt() function

The ifx_int8toflt() function converts an int8 type number into a C float type number.

Syntax

mint ifx_int8toflt(int8_val, flt_val)
   ifx_int8_t *int8_val;
   float *flt_val;

int8_val: A pointer to an int8 structure whose value ifx_int8toflt()converts to a float type value.
flt_val: A pointer to a float value where ifx_int8toflt() places the result of the conversion.

Usage

The ifx_int8toflt() library function converts an int8 value to a C float. The size of a C float depends upon the hardware and operating system of the computer you are using.

Return codes

0: The conversion was successful.
<0: The conversion failed.

Example

The file int8toflt.ec in the demo directory contains the following sample program.

/*
   * ifx_int8toflt.ec *

    The following program converts three strings to
    INT8 values and then to float values and
    displays the results.

*/

#include <stdio.h>

EXEC SQL include "int8.h";

char string1[] = "-12,555.765";
char string2[] = "480.76";
char string3[] = "5.2";

main()
{
    mint x;
    float f =0.0;
    ifx_int8_t num1, num2, num3;

    printf("\nIFX_INT8TOFLT 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);
        }

    printf("\nConverting INT8 to float\n");
    if (x= ifx_int8toflt(&num1, &f))
        {
        printf("\tError %d in converting INT8 to float\n", x);
        exit(1);
        }
    else 
        {
        printf("String 1= %s\n", string1);
        printf("INT8 value is = %f\n", f);
        }
    printf("\nConverting second INT8 to float\n");
    if (x= ifx_int8toflt(&num2, &f))
        {
        printf("\tError %d in converting INT8 to float\n", x);
        exit(1);
        }
    else 
        {
        printf("String2 = %s\n", string2);
        printf("INT8 value is =  %f\n", f); 
      }
    printf("\nConverting third INT8 to integer\n");
 
/* Note that the decimal places will be truncated */

    if (x= ifx_int8toflt(&num3, &f))                 
        {
        printf("\tError %d in converting INT8 to float\n", x);
        exit(1);
        }
    else
        {
        printf("String3 = %s\n", string3);
        printf("INT8 value is =  %f\n",f);
        }
    printf("\nIFX_INT8TOFLT Sample Program over.\n\n");
    exit(0);
}

Output

IFX_INT8TOFLT Sample ESQL Program running.



Converting INT8 to float
 
Executing: ifx_int8toflt(&num1,&f)
String 1= -12,555.765
The value of the first float is = -12555.000000


Converting second INT8 to float
 
Executing: ifx_int8toflt(&num2, &f)
String2 = 480.76
The value of the second float is =  480.000000


Converting third INT8 to integer
 
Executing: ifx_int8toflt(&num3, &f)
String3 = 5.2
The value of the third float is =  5.000000

IFX_INT8TOFLT Sample Program over.