title: Build Boost 1_70_0 to MS V Studio 2019 C++
body: <p>I've been using Boost libraries with MS Visual Studio C++ for a long time, in different versions of VS and Boost.</p>
  
  <p>Relating to Boost, after download and unpack, the build process has been:</p>
  
  <p><strong>1.-</strong> Run <code>bootstrap</code> from VS prompt.</p>
  
  <p><strong>2.-</strong> In <code>C:\boost_some_ver\project-config.jam</code>, edit the line <code>using msvc ;</code>
  and change to <code>using msvc : 14.0 ;</code></p>
  
  <p>In this case, <code>14.0</code> correspond to <strong>VS Express 2015</strong></p>
  
  <p><strong>3.-</strong> Build the libraries with the command:</p>
  
  <pre><code>bjam release debug threading=multi --build-type=complete --toolset=msvc address-model=64 stage
  </code></pre>
  
  <p>Now I must build the libraries for <strong>VS Studio 2019</strong> and want to know what toolset correspond to this compiler.</p>
  
  <p>Ie. What <strong>x.xx</strong> number correspond to VS Express 2019 C++ in <code>using msvc x.xx ;</code></p>