Compares two values of the same type, with the exception that a value of any type can be compared to a GDA_TYPE_NULL value, specifically:
value1
and value2
are both GDA_TYPE_NULL values then the returned value is 0value1
is a GDA_TYPE_NULL value and value2
is of another type then the returned value is -1value1
is of another type and value2
is a GDA_TYPE_NULL value then the returned value is 1value1
and value2
must be of the same type and their values are comparedvalue1 |
a Value to compare (not |
value2 |
the other Value to be compared to |
if both values have the same type, returns 0 if both contain the same value, an integer less than 0 if |