Informix DataBlade API Programmer's Manual DataBlade API Function Descriptions

The dtaddinv() function adds an interval value to a datetime value. The result is a datetime value.

mint dtaddinv(dt, inv, res)

	dtime_t *dt;

	intrvl_t *inv;

	dtime_t *res;

 



dt

is a pointer to the initialized datetime variable.


inv  

is a pointer to the initialized interval variable.


res

is a pointer to the datetime variable that contains the result.

The dtaddinv() function adds the interval value in inv to the datetime value in dt and stores the datetime value in res. This result inherits the qualifier of dt.

The interval value must be in either the year to month or day to fraction(5) ranges.

The datetime value must include all the fields present in the interval value.

If you do not initialize the variables dt and inv, the function might return an unpredictable result.