Status: FixedWaitingToBePharoed
Owner: [email protected]
Labels: Milestone-1.3 Type-Squeak Difficulty-Easy
New issue 3701 by [email protected]: FloatArray>>dot: is defined in
plugin but not at the image level
http://code.google.com/p/pharo/issues/detail?id=3701
Name: Collections-ul.423
Author: ul
Time: 7 February 2011, 8:55:57.134 pm
UUID: e18716fc-a36b-874c-8946-5c21b447a96f
Ancestors: Collections-ul.422
- use the primitive for FloatArray >> #dot: (~50x faster).
=============== Diff against Collections-ul.422 ===============
Item was changed:
----- Method: FloatArray>>dot: (in category 'arithmetic') -----
dot: aFloatVector
"Primitive. Return the dot product of the receiver and the argument.
Fail if the argument is not of the same size as the receiver."
+
| result |
+ <primitive: 'primitiveDotProduct' module: 'FloatArrayPlugin'>
- "<primitive:'primitiveFloatArrayDotProduct'>"
self size = aFloatVector size ifFalse:[^self error:'Must be equal
size'].
result := 0.0.
1 to: self size do:[:i|
result := result + ((self at: i) * (aFloatVector at: i)).
].
^result!
