Thanks a lot for reporting this I would surely have been caught (may be I am I'll go through code I wrote using this) by this bug.<br>Posting your workaround would not hurt I think...<br><br>Thanks and cheers<br><br><div class="gmail_quote">
2013/3/30 Robin Girard <span dir="ltr"><<a href="mailto:robin.girard@mines-paristech.fr" target="_blank">robin.girard@mines-paristech.fr</a>></span><br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
Thanks you're right I already wrote it myself with getFractional...<br>
and indeed that's not really what we should call a "bug" but it took me a while to understand that<br>
<br>
if date1-date2>0 then date1<date2 ;)<br>
<br>
R.<br>
<br>
<br>
----- Mail original -----<br>
De: "Dirk Eddelbuettel" <<a href="mailto:edd@debian.org">edd@debian.org</a>><br>
À: "Robin Girard" <<a href="mailto:robin.girard@mines-paristech.fr">robin.girard@mines-paristech.fr</a>><br>
Cc: <a href="mailto:rcpp-devel@lists.r-forge.r-project.org">rcpp-devel@lists.r-forge.r-project.org</a><br>
Envoyé: Samedi 30 Mars 2013 00:44:08<br>
Objet: Re: [Rcpp-devel] Datetime substraction bug ?<br>
<div class="HOEnZb"><div class="h5"><br>
<br>
On 29 March 2013 at 23:37, Robin Girard wrote:<br>
| Hi List<br>
|<br>
| why is it that we have in the Datetime definition<br>
| (here <a href="http://dirk.eddelbuettel.com/code/rcpp/html/Date_8cpp_source.html#l00271" target="_blank">http://dirk.eddelbuettel.com/code/rcpp/html/Date_8cpp_source.html#l00271</a> )<br>
|<br>
| double operator-(const Datetime& d1, const Datetime& d2) { return d2.m_dt - d1.m_dt; }<br>
| bool operator<(const Datetime &d1, const Datetime& d2) { return d1.m_dt < d2.m_dt; }<br>
|<br>
| I feel there is a contradiction<br>
| substraction shoulb be d1.m_dt - d2.m_dt; no ?<br>
<br>
It's been a while since I wrote that and I think I followed the difftime()<br>
convention in R. Or maybe not. To me d1 comes before d2 in the way the<br>
arguments are given, so d2 is larger and I want to subtract d1 from d2.<br>
<br>
In any event, if it bugs you greatly you are always free to write your own<br>
function. ;-)<br>
<br>
Dirk<br>
<br>
|<br>
| Robin<br>
|<br>
| Dr. Girard Robin<br>
| Chargé de Recherche<br>
|<br>
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Dirk Eddelbuettel | <a href="mailto:edd@debian.org">edd@debian.org</a> | <a href="http://dirk.eddelbuettel.com" target="_blank">http://dirk.eddelbuettel.com</a><br>
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