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<h1>Helpers</h1>
<p>
  <span>Namespace: global</span><br />
  </p>
<div class="xmldoc">
</div>

<!-- Render nested types and modules, if there are any -->

  <h3>Functions and values</h3>
  <table class="table table-bordered member-list">
    <thead>
      <tr><td>Function or value</td><td>Description</td></tr>
    </thead>
    <tbody>
      <tr>
        <td class="member-name">

          <code onmouseout="hideTip(event, '3', 3)" onmouseover="showTip(event, '3', 3)">
            assertThat cond msg
          </code>
          <div class="tip" id="3">
            <strong>Signature:</strong> cond:bool -&gt; msg:string -&gt; unit<br />
                                  </div>
        </td>
        <td class="xmldoc">
                      <a href="https://github.com/tomcl/ISSIE/tree/master/src/Common/Helpers.fs#L9-9" class="github-link">
              <img src="../content/img/github.png" class="normal" />
              <img src="../content/img/github-blue.png" class="hover" />
            </a>
          
        </td>
      </tr>
      <tr>
        <td class="member-name">

          <code onmouseout="hideTip(event, '4', 4)" onmouseover="showTip(event, '4', 4)">
            cropToLength len fromStart str
          </code>
          <div class="tip" id="4">
            <strong>Signature:</strong> len:int -&gt; fromStart:bool -&gt; str:string -&gt; string<br />
                                  </div>
        </td>
        <td class="xmldoc">
                      <a href="https://github.com/tomcl/ISSIE/tree/master/src/Common/Helpers.fs#L45-45" class="github-link">
              <img src="../content/img/github.png" class="normal" />
              <img src="../content/img/github-blue.png" class="hover" />
            </a>
          <p>Crop a string to the specified length.
fromStart indicates whether you want the first <len> characters or the last
<len> characters.</p>


        </td>
      </tr>
      <tr>
        <td class="member-name">

          <code onmouseout="hideTip(event, '5', 5)" onmouseover="showTip(event, '5', 5)">
            listSet lst item idx
          </code>
          <div class="tip" id="5">
            <strong>Signature:</strong> lst:&#39;a list -&gt; item:&#39;a -&gt; idx:int -&gt; &#39;a list<br />
                          <strong>Type parameters:</strong> 'a                      </div>
        </td>
        <td class="xmldoc">
                      <a href="https://github.com/tomcl/ISSIE/tree/master/src/Common/Helpers.fs#L33-33" class="github-link">
              <img src="../content/img/github.png" class="normal" />
              <img src="../content/img/github-blue.png" class="hover" />
            </a>
          <p>Set an element of the list at the specified position.
This function is slow: O(n). Do not use unless necessary.</p>


        </td>
      </tr>
      <tr>
        <td class="member-name">

          <code onmouseout="hideTip(event, '6', 6)" onmouseover="showTip(event, '6', 6)">
            pow2(exponent)
          </code>
          <div class="tip" id="6">
            <strong>Signature:</strong> exponent:int -&gt; int<br />
                                  </div>
        </td>
        <td class="xmldoc">
                      <a href="https://github.com/tomcl/ISSIE/tree/master/src/Common/Helpers.fs#L24-24" class="github-link">
              <img src="../content/img/github.png" class="normal" />
              <img src="../content/img/github-blue.png" class="hover" />
            </a>
          <p>Return 2^exponent.</p>


        </td>
      </tr>
      <tr>
        <td class="member-name">

          <code onmouseout="hideTip(event, '7', 7)" onmouseover="showTip(event, '7', 7)">
            pow2int64(exponent)
          </code>
          <div class="tip" id="7">
            <strong>Signature:</strong> exponent:int -&gt; int64<br />
                                  </div>
        </td>
        <td class="xmldoc">
                      <a href="https://github.com/tomcl/ISSIE/tree/master/src/Common/Helpers.fs#L28-28" class="github-link">
              <img src="../content/img/github.png" class="normal" />
              <img src="../content/img/github-blue.png" class="hover" />
            </a>
          <p>Return 2^exponent, packed into an int64.</p>


        </td>
      </tr>
      <tr>
        <td class="member-name">

          <code onmouseout="hideTip(event, '8', 8)" onmouseover="showTip(event, '8', 8)">
            tryFindError(lst)
          </code>
          <div class="tip" id="8">
            <strong>Signature:</strong> lst:Result&lt;&#39;a,&#39;b&gt; list -&gt; Result&lt;&#39;a list,&#39;b&gt;<br />
                          <strong>Type parameters:</strong> 'a, 'b                      </div>
        </td>
        <td class="xmldoc">
                      <a href="https://github.com/tomcl/ISSIE/tree/master/src/Common/Helpers.fs#L15-15" class="github-link">
              <img src="../content/img/github.png" class="normal" />
              <img src="../content/img/github-blue.png" class="hover" />
            </a>
          <p>Return the first error found in a list of results, or the list of Oks if
there are none.</p>


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