<html>
    <head>
      <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] macro __FUNCTION__ cannot be used with "comment" and "message" pragmas"
   href="https://llvm.org/bugs/show_bug.cgi?id=26831">26831</a>
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>[ms] macro __FUNCTION__ cannot be used with "comment" and "message" pragmas
          </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>!- clang does not recognize macros __FUNCTION__ and __FUNCDNAME__ in #pragma
message and #pragma comment. Ms cl compiler works without errors and prints
function name in this case -!

===========ENVIRONMENT==================
OS: Windows
Language: c/c++
Version: trunk

===========SMALL REPRODUCER=============
void func(void) {
  #pragma message(__FUNCTION__)
  #pragma message("function = " __FUNCTION__)
  #pragma message("function = " "WHY_NOT" __FUNCTION__ "\n")
  #pragma comment(linker, "/EXPORT:" __FUNCTION__ "=" __FUNCDNAME__)
  #pragma message("/EXPORT:" __FUNCTION__ "=" __FUNCDNAME__)
}

============DIAGNOSTICS==================
<span class="quote">>>>clang: </span >
test.cpp:2:19: error: expected string literal in pragma message
  #pragma message(__FUNCTION__)
test.cpp:3:33: error: pragma message requires parenthesized string
  #pragma message("function = " __FUNCTION__)
test.cpp:4:43: error: pragma message requires parenthesized string
  #pragma message("function = " "WHY_NOT" __FUNCTION__ "\n")
test.cpp:5:38: error: pragma comment requires parenthesized identifier and
optional string
  #pragma comment(linker, "/EXPORT:" __FUNCTION__ "=" __FUNCDNAME__)
test.cpp:6:30: error: pragma message requires parenthesized string
  #pragma message("/EXPORT:" __FUNCTION__ "=" __FUNCDNAME__)

<span class="quote">>>>MSVC/intel icc compiler: </span >
func
function = func
function = WHY_NOTfunc

/EXPORT:func=?func@@YAXXZ


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