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(This article was first published on <strong><a href="http://dirk.eddelbuettel.com/blog/2017/02/04#rcppcctz_0.2.1"> Thinking inside the box </a></strong>, and kindly contributed to <a rel="nofollow" href="https://www.r-bloggers.com/">R-bloggers)</a> </div>
<p>A new minor version 0.2.1, of <a target="_blank" rel="nofollow" href="http://dirk.eddelbuettel.com/code/rcpp.cctz.html">RcppCCTZ</a> is now on <a target="_blank" rel="nofollow" href="https://cran.r-project.org/">CRAN</a>. It corrects a possible shortcoming and rounding in the conversion from internal representation (in C++11 using <code>int64_t</code>) to the two <code>double</code> values for seconds and nanoseconds handed to R. Two other minor changes are also summarized below.</p>
<p><a target="_blank" rel="nofollow" href="http://dirk.eddelbuettel.com/code/rcpp.cctz.html">RcppCCTZ</a> uses <a target="_blank" rel="nofollow" href="http://dirk.eddelbuettel.com/code/rcpp.html">Rcpp</a> to bring <a target="_blank" rel="nofollow" href="https://github.com/google/cctz">CCTZ</a> to R. <a target="_blank" rel="nofollow" href="https://github.com/google/cctz">CCTZ</a> is <em>a C++ library for translating between absolute and civil times using the rules of a time zone</em>. In fact, it is <em>two</em> libraries. One for dealing with <em>civil time</em>: human-readable dates and times, and one for converting between between absolute and civil times via time zones. The <a target="_blank" rel="nofollow" href="http://dirk.eddelbuettel.com/code/rcpp.cctz.html">RcppCCTZ</a> page has a few usage examples and details.</p>
<p>The changes in this version are summarized here:</p>
<blockquote>
<h4>Changes in version 0.2.1 (2017-02-04)</h4>
<ul>
<li>
<p>Conversion from timepoint to two <code>double</code> values now rounds correctly (<a target="_blank" rel="nofollow" href="https://github.com/eddelbuettel/rcppcctz/pull/14">#14</a> closing <a target="_blank" rel="nofollow" href="https://github.com/eddelbuettel/rcppcctz/issues/12">#12</a>, with thanks to Leonardo)</p>
</li>
<li>
<p>The Description was expanded to stress the need for a modern C++11 compiler; g++-4.8 (as on ‘trusty’ eg in Travis CI) works</p>
</li>
<li>
<p>Travis CI is now driven via <code>run.sh</code> from our fork</p>
</li>
</ul>
</blockquote>
<p>We also have a <a target="_blank" rel="nofollow" href="http://dirk.eddelbuettel.com/cranberries/2017/02/04#RcppCCTZ_0.2.1">diff to the previous version</a> thanks to <a target="_blank" rel="nofollow" href="http://dirk.eddelbuettel.com/cranberries">CRANberries</a>. More details are at the <a target="_blank" rel="nofollow" href="http://dirk.eddelbuettel.com/code/rcpp.cctz.html">RcppCCTZ page</a>; code, issue tickets etc at the <a target="_blank" rel="nofollow" href="https://github.com/eddelbuettel/rcppcctz">GitHub repository</a>.</p>
<p>
This post by <a target="_blank" rel="nofollow" href="http://dirk.eddelbuettel.com/">Dirk Eddelbuettel</a> originated on his <a target="_blank" rel="nofollow" href="http://dirk.eddelbuettel.com/blog/">Thinking inside the box</a> blog. Please report excessive re-aggregation in third-party for-profit settings.</p>
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<div>To <strong>leave a comment</strong> for the author, please follow the link and comment on their blog: <strong><a href="http://dirk.eddelbuettel.com/blog/2017/02/04#rcppcctz_0.2.1"> Thinking inside the box </a></strong>.</div>
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