On 6 Jun 2011, at 3:38am, Sidney Cadot wrote: >> And the OP was trying to match values with NULL. > > Actually, no, I was asking how SQlite behaves with respect to IEEE-754 > floating point.
But you were using a SQL command to make the match. Here it one of them: On 5 Jun 2011, at 3:35pm, Sidney Cadot wrote: > After some experimenting, it appears that ... > > * SELECT 1.0 / 0.0 yields NULL (where I would expect to see Inf) You executed a SELECT command and got an answer from SQL. That answer does not mean "The result of the calculation '1.0 / 0.0' is the value NULL." which is what it would mean if you did the maths yourself. What it means from SQL is "The result of '1.0 / 0.0' is unknown or missing." because you asked SQL, not a maths library. In this case, it's unknown. Because SQLite doesn't know how to do that calculation. Simon. _______________________________________________ sqlite-users mailing list sqlite-users@sqlite.org http://sqlite.org:8080/cgi-bin/mailman/listinfo/sqlite-users
