<html>
    <head>
      <base href="http://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 --- - clearer categories for overload resolution failures"
   href="http://llvm.org/bugs/show_bug.cgi?id=22734">22734</a>
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>clearer categories for overload resolution failures
          </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>-New Bugs
          </td>
        </tr>

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

        <tr>
          <th>Reporter</th>
          <td>nlewycky@google.com
          </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>Testcase:

void overloaded(int, float);
void overloaded(float, int);
void overloaded(int, float, double);
void overloaded(float, int, double);
void test() {
  overloaded(1, 2, 3, 4);
  overloaded(1);
}

We emit a lengthy diagnostics pointing to each overload with a note. Consider
emitting "no matching function for call to 'overloaded', called with 4
arguments but no overload has that many parameters", and maybe not emitting all
the notes.

$ clang b14434192.cc
b14434192.cc:6:3: error: no matching function for call to 'overloaded'
  overloaded(1, 2, 3, 4);
  ^~~~~~~~~~
b14434192.cc:4:6: note: candidate function not viable: requires 3 arguments,
but
      4 were provided
void overloaded(float, int, double);
     ^
b14434192.cc:3:6: note: candidate function not viable: requires 3 arguments,
but
      4 were provided
void overloaded(int, float, double);
     ^
b14434192.cc:2:6: note: candidate function not viable: requires 2 arguments,
but
      4 were provided
void overloaded(float, int);
     ^
b14434192.cc:1:6: note: candidate function not viable: requires 2 arguments,
but
      4 were provided
void overloaded(int, float);
     ^
b14434192.cc:7:3: error: no matching function for call to 'overloaded'
  overloaded(1);
  ^~~~~~~~~~
b14434192.cc:2:6: note: candidate function not viable: requires 2 arguments,
but
      1 was provided
void overloaded(float, int);
     ^
b14434192.cc:1:6: note: candidate function not viable: requires 2 arguments,
but
      1 was provided
void overloaded(int, float);
     ^
b14434192.cc:4:6: note: candidate function not viable: requires 3 arguments,
but
      1 was provided
void overloaded(float, int, double);
     ^
b14434192.cc:3:6: note: candidate function not viable: requires 3 arguments,
but
      1 was provided
void overloaded(int, float, double);
     ^
2 errors generated.</pre>
        </div>
      </p>
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