INFORMIX-ESQL/C Programmer's Manual ESQL/C Function Library

The decmul() function multiplies two decimal type values.

mint decmul(n1,  n2,  product)

	dec_t  *n1;

	dec_t  *n2;

	dec_t  *product;

 



n1

is a pointer to the decimal structure of the first operand. 


n2

is a pointer to the decimal structure of the second operand. 


product  

is a pointer to the decimal structure that contains the product of n1 times n2. 

The product can be the same as either n1 or n2.

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

/*
* decmul.ec *

This program multiplies two DECIMAL numbers and displays the result.
*/

#include <stdio.h>

EXEC SQL include decimal;

char string1[] = "80.2";
char string2[] = "6.0";
char result[41];

main()
{
mint x;
dec_t num1, num2, mpx;

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

if (x = deccvasc(string1, strlen(string1), &num1))
{
printf("Error %d in converting string1 to DECIMAL\n", x);
exit(1);
}
if (x = deccvasc(string2, strlen(string2), &num2))
{
printf("Error %d in converting string2 to DECIMAL\n", x);
exit(1);
}

if (x = decmul(&num1, &num2, &mpx))
{
printf("Error %d in converting multiply\n", x);
exit(1);
}
if (x = dectoasc(&mpx, result, sizeof(result), -1))
{
printf("Error %d in converting mpx to display string\n", x);
exit(1);
}
result[40] = '\0';
printf("\t%s * %s = %s\n", string1, string2, result);

printf("\nDECMUL Sample Program over.\n\n");
exit(0);
}

DECMUL Sample ESQL Program running.

80.2 * 6.0 = 481.2

DECMUL Sample Program over.