<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 --- - Warn on missing exports in microsoft mode?"
   href="https://llvm.org/bugs/show_bug.cgi?id=23179">23179</a>
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>Warn on missing exports in microsoft 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>All
          </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>nicolasweber@gmx.de
          </td>
        </tr>

        <tr>
          <th>CC</th>
          <td>llvmbugs@cs.uiuc.edu
          </td>
        </tr>

        <tr>
          <th>Classification</th>
          <td>Unclassified
          </td>
        </tr></table>
      <p>
        <div>
        <pre>Consider something like this:

struct CpuProfileDeoptFrame {
  int script_id;
};

// XXX
//template class V8_EXPORT std::vector<v8::CpuProfileDeoptFrame>;

struct V8_EXPORT CpuProfileDeoptInfo {
  std::vector<CpuProfileDeoptFrame> stack;
};

Unless the line marked XXX is present, cl will warn on this with

2>D:\src\v8\include/v8-profiler.h(31): warning C4251:
'v8::CpuProfileDeoptInfo::stack' : class
'std::vector<v8::CpuProfileDeoptFrame,std::allocator<_Ty>>' needs to have
dll-interface to be used by clients of struct 'v8::CpuProfileDeoptInfo'
2>          with
2>          [
2>              _Ty=v8::CpuProfileDeoptFrame
2>          ] (..\..\src\compiler\change-lowering.cc)



There's probably a good reason for that -- should we warn on this too?</pre>
        </div>
      </p>
      <hr>
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