1<html> 2<head> 3<meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> 4<title>Function template operator+</title> 5<link rel="stylesheet" href="../../../../../../doc/src/boostbook.css" type="text/css"> 6<meta name="generator" content="DocBook XSL Stylesheets V1.79.1"> 7<link rel="home" href="../../index.html" title="Chapter 1. Boost.Histogram"> 8<link rel="up" href="../../histogram/reference.html#header.boost.histogram.histogram_hpp" title="Header <boost/histogram/histogram.hpp>"> 9<link rel="prev" href="operator_idm45503931774272.html" title="Function template operator*"> 10<link rel="next" href="operator-.html" title="Function template operator-"> 11</head> 12<body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"> 13<table cellpadding="2" width="100%"><tr> 14<td valign="top"><img alt="Boost C++ Libraries" width="277" height="86" src="../../../../../../boost.png"></td> 15<td align="center"><a href="../../../../../../index.html">Home</a></td> 16<td align="center"><a href="../../../../../libraries.htm">Libraries</a></td> 17<td align="center"><a href="http://www.boost.org/users/people.html">People</a></td> 18<td align="center"><a href="http://www.boost.org/users/faq.html">FAQ</a></td> 19<td align="center"><a href="../../../../../../more/index.htm">More</a></td> 20</tr></table> 21<hr> 22<div class="spirit-nav"> 23<a accesskey="p" href="operator_idm45503931774272.html"><img src="../../../../../../doc/src/images/prev.png" alt="Prev"></a><a accesskey="u" href="../../histogram/reference.html#header.boost.histogram.histogram_hpp"><img src="../../../../../../doc/src/images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../../../../../doc/src/images/home.png" alt="Home"></a><a accesskey="n" href="operator-.html"><img src="../../../../../../doc/src/images/next.png" alt="Next"></a> 24</div> 25<div class="refentry"> 26<a name="boost.histogram.operator+"></a><div class="titlepage"></div> 27<div class="refnamediv"> 28<h2><span class="refentrytitle">Function template operator+</span></h2> 29<p>boost::histogram::operator+ — Pairwise add cells of two histograms and return histogram with the sum. </p> 30</div> 31<h2 xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" class="refsynopsisdiv-title">Synopsis</h2> 32<div xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" class="refsynopsisdiv"><pre class="synopsis"><span class="comment">// In header: <<a class="link" href="../../histogram/reference.html#header.boost.histogram.histogram_hpp" title="Header <boost/histogram/histogram.hpp>">boost/histogram/histogram.hpp</a>> 33 34</span> 35<span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> A1<span class="special">,</span> <span class="keyword">typename</span> S1<span class="special">,</span> <span class="keyword">typename</span> A2<span class="special">,</span> <span class="keyword">typename</span> S2<span class="special">></span> 36 <span class="keyword">auto</span> <span class="keyword">operator</span><span class="special">+</span><span class="special">(</span><span class="keyword">const</span> <a class="link" href="histogram.html" title="Class template histogram">histogram</a><span class="special"><</span> <span class="identifier">A1</span><span class="special">,</span> <span class="identifier">S1</span> <span class="special">></span> <span class="special">&</span> a<span class="special">,</span> <span class="keyword">const</span> <a class="link" href="histogram.html" title="Class template histogram">histogram</a><span class="special"><</span> <span class="identifier">A2</span><span class="special">,</span> <span class="identifier">S2</span> <span class="special">></span> <span class="special">&</span> b<span class="special">)</span><span class="special">;</span></pre></div> 37<div class="refsect1"> 38<a name="idm45113199940832"></a><h2>Description</h2> 39<p>The returned histogram type is the most efficient and safest one constructible from the inputs, if they are not the same type. If one histogram has a tuple axis, the result has a tuple axis. The chosen storage is the one with the larger dynamic range. </p> 40</div> 41</div> 42<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr> 43<td align="left"></td> 44<td align="right"><div class="copyright-footer">Copyright © 2016-2019 Hans 45 Dembinski<p> 46 Distributed under the Boost Software License, Version 1.0. (See accompanying 47 file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) 48 </p> 49</div></td> 50</tr></table> 51<hr> 52<div class="spirit-nav"> 53<a accesskey="p" href="operator_idm45503931774272.html"><img src="../../../../../../doc/src/images/prev.png" alt="Prev"></a><a accesskey="u" href="../../histogram/reference.html#header.boost.histogram.histogram_hpp"><img src="../../../../../../doc/src/images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../../../../../doc/src/images/home.png" alt="Home"></a><a accesskey="n" href="operator-.html"><img src="../../../../../../doc/src/images/next.png" alt="Next"></a> 54</div> 55</body> 56</html> 57
