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reintroduce some rounding into basis calculations to prevent overflow on particularly large accounts.

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git-svn-id: svn+ssh://svn.gnucash.org/repo/gnucash/trunk@16633 57a11ea4-9604-0410-9ed3-97b8803252fd
This commit is contained in:
Andrew Sackville-West 2007-12-10 20:53:42 +00:00
parent 5decaf456b
commit 884b96b194
1 changed files with 16 additions and 18 deletions
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34
src/report/standard-reports/advanced-portfolio.scm
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@ -225,24 +225,22 @@
((average-basis)
(if (not (eqv? b-list '()))
(list (cons (gnc-numeric-add b-units
(caar b-list) GNC-DENOM-AUTO (logior GNC-DENOM-REDUCE GNC-RND-NEVER))
(caar b-list) 10000 GNC-RND-ROUND)
(gnc-numeric-div
(gnc-numeric-add b-value
(gnc-numeric-mul (caar b-list)
(cdar b-list)
GNC-DENOM-AUTO (logior GNC-DENOM-REDUCE GNC-RND-NEVER))
GNC-DENOM-AUTO (logior GNC-DENOM-REDUCE GNC-RND-NEVER))
10000 GNC-RND-ROUND)
10000 GNC-RND-ROUND)
(gnc-numeric-add b-units
(caar b-list) GNC-DENOM-AUTO (logior GNC-DENOM-REDUCE GNC-RND-NEVER))
GNC-DENOM-AUTO (logior GNC-DENOM-REDUCE GNC-RND-NEVER))))
(caar b-list) 10000 GNC-RND-ROUND)
10000 GNC-RND-ROUND)))
(append b-list
(list (cons b-units (gnc-numeric-div
b-value b-units GNC-DENOM-AUTO
(logior GNC-DENOM-REDUCE GNC-RND-NEVER)))))))
b-value b-units 10000 GNC-RND-ROUND))))))
(else (append b-list
(list (cons b-units (gnc-numeric-div
b-value b-units GNC-DENOM-AUTO
(logior GNC-DENOM-REDUCE GNC-RND-NEVER)))))))
b-value b-units 10000 GNC-RND-ROUND))))))
(if (not (eqv? b-list '()))
(case b-method
((fifo-basis)
@ -250,11 +248,11 @@
(gnc-numeric-abs b-units) (caar b-list))))
(basis-builder (cdr b-list) (gnc-numeric-add
b-units
(caar b-list) GNC-DENOM-AUTO (logior GNC-DENOM-REDUCE GNC-RND-NEVER))
(caar b-list) 10000 GNC-RND-ROUND)
b-value b-method)
(append (list (cons (gnc-numeric-add
b-units
(caar b-list) GNC-DENOM-AUTO (logior GNC-DENOM-REDUCE GNC-RND-NEVER))
(caar b-list) 10000 GNC-RND-ROUND)
(cdar b-list))) (cdr b-list))))
((filo-basis)
(if (not (= -1 (gnc-numeric-compare
@ -263,16 +261,16 @@
(gnc-numeric-add
b-units
(caar (reverse b-list))
GNC-DENOM-AUTO (logior GNC-DENOM-REDUCE GNC-RND-NEVER))
10000 GNC-RND-ROUND)
b-value b-method)
(append (cdr (reverse b-list))
(list (cons (gnc-numeric-add
b-units
(caar (reverse b-list)) GNC-DENOM-AUTO (logior GNC-DENOM-REDUCE GNC-RND-NEVER))
(caar (reverse b-list)) 10000 GNC-RND-ROUND)
(cdar (reverse b-list)))))))
((average-basis)
(list (cons (gnc-numeric-add
(caar b-list) b-units GNC-DENOM-AUTO (logior GNC-DENOM-REDUCE GNC-RND-NEVER))
(caar b-list) b-units 10000 GNC-RND-ROUND)
(cdar b-list)))))
'()
)
@ -280,13 +278,13 @@
;; this is a split/merge...
(let* ((current-units (units-basis b-list))
(units-ratio (gnc-numeric-div current-units
(gnc-numeric-add b-units current-units GNC-DENOM-AUTO (logior GNC-DENOM-REDUCE GNC-RND-NEVER))
GNC-DENOM-AUTO (logior GNC-DENOM-REDUCE GNC-RND-NEVER))))
(gnc-numeric-add b-units current-units 10000 GNC-RND-ROUND)
10000 GNC-RND-ROUND)))
(define (apply-ratio blist ratio)
(if (not (eqv? blist '()))
(cons (cons (gnc-numeric-div (caar blist) ratio GNC-DENOM-AUTO (logior GNC-DENOM-REDUCE GNC-RND-NEVER))
(gnc-numeric-mul ratio (cdar blist) GNC-DENOM-AUTO (logior GNC-DENOM-REDUCE GNC-RND-NEVER)))
(cons (cons (gnc-numeric-div (caar blist) ratio 10000 GNC-RND-ROUND)
(gnc-numeric-mul ratio (cdar blist) 10000 GNC-RND-ROUND))
(apply-ratio (cdr blist) ratio ))
'()
)