Informix DataBlade API Programmer's Manual DataBlade API Function Descriptions

The decround() function rounds a decimal type number to fractional digits.

void decround(d,  s)

	dec_t  *d;  

	mint  s;  

 



d  

is a pointer to a decimal structure whose value the decround() function rounds. 


s

is the number of fractional digits to which decround() rounds d. Use a positive number for the d argument.

The rounding factor is 5x10^-s^-1. To round a value, the decround() function adds the rounding factor to a positive number or subtracts this factor from a negative number. It then truncates to s digits, as the following table shows