<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 --- - No error for use of local const variable in local class with -std=c++03 -pedantic-errors"
href="http://llvm.org/bugs/show_bug.cgi?id=19994">19994</a>
</td>
</tr>
<tr>
<th>Summary</th>
<td>No error for use of local const variable in local class with -std=c++03 -pedantic-errors
</td>
</tr>
<tr>
<th>Product</th>
<td>clang
</td>
</tr>
<tr>
<th>Version</th>
<td>trunk
</td>
</tr>
<tr>
<th>Hardware</th>
<td>Other
</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>C++
</td>
</tr>
<tr>
<th>Assignee</th>
<td>unassignedclangbugs@nondot.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>hstong@ca.ibm.com
</td>
</tr>
<tr>
<th>CC</th>
<td>dgregor@apple.com, llvmbugs@cs.uiuc.edu
</td>
</tr>
<tr>
<th>Classification</th>
<td>Unclassified
</td>
</tr></table>
<p>
<div>
<pre>Clang should probably produce a diagnostic for the source code below under
C++03 modes.
C++03 subclause 9.8 [class.local] paragraph 1:
Declarations in a local class can use only type names, static variables, extern
variables and functions, and enumerators from the enclosing scope.
C++03 subclause 3.2 [basic.def.odr] paragraph 2:
An object or non-overloaded function is used if its name appears in a
potentially-evaluated expression.
The expression in the return statement in X::f() is a potentially-evaluated
expression.
### SOURCE:> cat localVarUse.cc
int foo() {
const int n = 42;
struct X {
int f() { return n; }
} x;
return x.f();
}
Return: 0x00:0
### COMPILER INVOCATION AND OUTPUT:> clang++ localVarUse.cc -std=c++03
-pedantic-errors -Wall -Wextra -c
Return: 0x00:0
### EXPECTED:
localVarUse.cc:4:24: error: reference to local variable 'n' declared in
enclosing function 'foo'
int f() { return n; }
^
localVarUse.cc:2:14: note: 'n' declared here
const int n = 42;
^
1 error generated.
Return: 0x01:1
### VERSION INFO:> clang++ -v
clang version 3.5.0
Target: powerpc64-unknown-linux-gnu
Thread model: posix
Found candidate GCC installation: /usr/lib/gcc/ppc64-redhat-linux/4.4.4
Found candidate GCC installation: /usr/lib/gcc/ppc64-redhat-linux/4.4.6
Selected GCC installation: /usr/lib/gcc/ppc64-redhat-linux/4.4.6
Candidate multilib: .;@m64
Candidate multilib: 32;@m32
Selected multilib: .;@m64
Return: 0x00:0</pre>
</div>
</p>
<hr>
<span>You are receiving this mail because:</span>
<ul>
<li>You are on the CC list for the bug.</li>
</ul>
</body>
</html>