-! Copyright (c) 2007 Aaron Schaefer.
+! Copyright (c) 2007, 2008 Aaron Schaefer.
! See http://factorcode.org/license.txt for BSD license.
-USING: continuations fry io kernel make math math.functions math.parser
- math.statistics memory tools.time ;
+USING: continuations fry io kernel make math math.functions
+math.parser math.statistics memory tools.time ;
IN: project-euler.ave-time
+: nth-place ( x n -- y )
+ 10^ [ * round >integer ] keep /f ;
+
: collect-benchmarks ( quot n -- seq )
[
[ datastack ]
- [ '[ _ gc benchmark , ] tuck '[ _ _ with-datastack drop ] ]
- [ 1- ] tri* swap times call
+ [
+ '[ _ gc benchmark 1000 / , ] tuck
+ '[ _ _ with-datastack drop ]
+ ]
+ [ 1 - ] tri* swap times call
] { } make ; inline
-: nth-place ( x n -- y )
- 10 swap ^ [ * round ] keep / ;
-
: ave-time ( quot n -- )
[ collect-benchmarks ] keep swap
- [ std 2 nth-place ] [ mean round ] bi [
+ [ std 2 nth-place ] [ mean round >integer ] bi [
# " ms ave run time - " % # " SD (" % # " trials)" %
] "" make print flush ; inline