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      <base href="https://llvm.org/bugs/" />
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    <body><table border="1" cellspacing="0" cellpadding="8">
        <tr>
          <th>Bug ID</th>
          <td><a class="bz_bug_link 
          bz_status_NEW "
   title="NEW --- - [ms] Clang does not recognize "static_assert" keyword in C mode"
   href="https://llvm.org/bugs/show_bug.cgi?id=26672">26672</a>
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>[ms] Clang does not recognize "static_assert" keyword in C mode
          </td>
        </tr>

        <tr>
          <th>Product</th>
          <td>clang
          </td>
        </tr>

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

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

        <tr>
          <th>OS</th>
          <td>Windows NT
          </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>Frontend
          </td>
        </tr>

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

        <tr>
          <th>Reporter</th>
          <td>andrey.kuleshov@intel.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>!- "static_assert" keyword is not described in C standard, but Microsoft visual
compiler (cl) can compile C code with this keyword, it seems that it might be
added to clang in C mode as well -!

=========Environment============
Os: Windows 
Language: C
Version of clang: trunk

========How to reproduce========
$ cat test.c
static_assert(1, "in the ifdef");

$ clang -c test.c

========Error==================
<span class="quote">>>>clang:</span >
----
test.c:1:15: error: expected parameter declarator
static_assert(1, "in the ifdef");
              ^
test.c:1:15: error: expected ')'
test.c:1:14: note: to match this '('
static_assert(1, "in the ifdef");
             ^
test.c:1:1: warning: type specifier missing, defaults to 'int' [-Wimplicit-int]
static_assert(1, "in the ifdef");


<span class="quote">>>>MSVC Version 18.00.31101 for x64:</span >
----
no diagnostics

<span class="quote">>>> Intel c/c++ compiler:</span >
----
no diagnostics


=======================
Intel Software Engineer
Andrey Kuleshov</pre>
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