Created
January 17, 2012 21:51
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[20120118-0651]test3.vim/関数呼び出しコスト調査
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| func! s:fact1(val) | |
| if ( a:val == 1 ) | |
| return 1 | |
| else | |
| return a:val * s:fact1(a:val-1) | |
| endif | |
| endfunc | |
| func! s:fact2(val) | |
| let i = a:val - 1 | |
| let fact = a:val | |
| while ( i > 0 ) | |
| let fact = fact * i | |
| let i -= 1 | |
| endwhile | |
| return fact | |
| endfunc | |
| func! TestFunction() | |
| let loopcnt = 200000 | |
| let st_time = reltime() | |
| let i = 0 | |
| while i < loopcnt | |
| call s:fact1(10) | |
| let i += 1 | |
| endwhile | |
| echo "s:fact1->" . split(reltimestr(reltime(st_time)))[0] | |
| let st_time = reltime() | |
| let i = 0 | |
| while i < loopcnt | |
| call s:fact2(10) | |
| let i += 1 | |
| endwhile | |
| echo "s:fact2->" . split(reltimestr(reltime(st_time)))[0] | |
| endfunc |
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