<span class="m-doc-wrap">int device) <span class="m-label m-info">explicit</span> </span></span>
            </h3>
            <p>constructs a RAII-styled device switcher</p>
            <table class="m-table m-fullwidth m-flat">
              <thead>
                <tr><th colspan="2">Parameters</th></tr>
              </thead>
              <tbody>
                <tr>
                  <td style="width: 1%">device</td>
                  <td>device context to scope in the guard</td>
                </tr>