<html>
    <head>
      <base href="https://llvm.org/bugs/" />
    </head>
    <body><table border="1" cellspacing="0" cellpadding="8">
        <tr>
          <th>Bug ID</th>
          <td><a class="bz_bug_link 
          bz_status_NEW "
   title="NEW --- - tools/clang/lib/Format/Format.cpp:1548: suspicious code ?"
   href="https://llvm.org/bugs/show_bug.cgi?id=31414">31414</a>
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>tools/clang/lib/Format/Format.cpp:1548: suspicious code ?
          </td>
        </tr>

        <tr>
          <th>Product</th>
          <td>new-bugs
          </td>
        </tr>

        <tr>
          <th>Version</th>
          <td>trunk
          </td>
        </tr>

        <tr>
          <th>Hardware</th>
          <td>PC
          </td>
        </tr>

        <tr>
          <th>OS</th>
          <td>Linux
          </td>
        </tr>

        <tr>
          <th>Status</th>
          <td>NEW
          </td>
        </tr>

        <tr>
          <th>Severity</th>
          <td>normal
          </td>
        </tr>

        <tr>
          <th>Priority</th>
          <td>P
          </td>
        </tr>

        <tr>
          <th>Component</th>
          <td>new bugs
          </td>
        </tr>

        <tr>
          <th>Assignee</th>
          <td>unassignedbugs@nondot.org
          </td>
        </tr>

        <tr>
          <th>Reporter</th>
          <td>dcb314@hotmail.com
          </td>
        </tr>

        <tr>
          <th>CC</th>
          <td>llvm-bugs@lists.llvm.org
          </td>
        </tr>

        <tr>
          <th>Classification</th>
          <td>Unclassified
          </td>
        </tr></table>
      <p>
        <div>
        <pre>llvm/tools/clang/lib/Format/Format.cpp:1548:23: warning: en
um constant in boolean context [-Wint-in-bool-context]

Source code is

  bool Matched = Tok.is(tok::hash) && !Lex.LexFromRawLexer(Tok) &&
                 Tok.is(tok::raw_identifier) &&
                 Tok.getRawIdentifier() == Name && !Lex.LexFromRawLexer(Tok) &&
                 tok::raw_identifier;

The final expression looks odd to me. Maybe better code

  bool Matched = Tok.is(tok::hash) && !Lex.LexFromRawLexer(Tok) &&
                 Tok.is(tok::raw_identifier) &&
                 Tok.getRawIdentifier() == Name && !Lex.LexFromRawLexer(Tok) &&
                 Tok.is(tok::raw_identifier);</pre>
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