Commit bc9de3d4 authored by unknown's avatar unknown
Browse files

fixed Bug #3051 "FLOOR returns invalid" 


mysql-test/r/func_math.result:
  added test for Bug #3051 "FLOOR returns invalid"
mysql-test/t/func_math.test:
  added test for Bug #3051 "FLOOR returns invalid"
parent 709325d1

mysql-test/r/func_math.result

+6 −0
Original line number Diff line number Diff line
@@ -32,3 +32,9 @@ ASIN(0.8+0.2) 
1.570796

ASIN(1.2-0.2)

1.570796

floor(log(4)/log(2))

2

floor(log(8)/log(2))

3

floor(log(16)/log(2))

4

mysql-test/t/func_math.test

+8 −0
Original line number Diff line number Diff line
@@ -24,3 +24,11 @@ SELECT ACOS(0.2*5.0); 
SELECT ACOS(0.5*2.0);

SELECT ASIN(0.8+0.2);

SELECT ASIN(1.2-0.2);



#

# Bug #3051 FLOOR returns invalid 

#



select floor(log(4)/log(2));

select floor(log(8)/log(2));

select floor(log(16)/log(2));

sql/item_func.cc

+2 −1
Original line number Diff line number Diff line
@@ -572,7 +572,8 @@ longlong Item_func_ceiling::val_int() 


longlong Item_func_floor::val_int()

{

  double value=args[0]->val();

  // the volatile's for BUG #3051 to calm optimizer down (because of gcc's bug)

  volatile double value=args[0]->val();

  null_value=args[0]->null_value;

  return (longlong) floor(value);

}