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<base href="http://llvm.org/bugs/" />
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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - Can't assign PTHREAD_MUTEX_INITIALIZER to a class member"
href="http://llvm.org/bugs/show_bug.cgi?id=17320">17320</a>
</td>
</tr>
<tr>
<th>Summary</th>
<td>Can't assign PTHREAD_MUTEX_INITIALIZER to a class member
</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>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>bero@lindev.ch
</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>Created <span class=""><a href="attachment.cgi?id=11261" name="attach_11261" title="sample code showing failures and workaround">attachment 11261</a> <a href="attachment.cgi?id=11261&action=edit" title="sample code showing failures and workaround">[details]</a></span>
sample code showing failures and workaround
This code fails to compile, saying "expected expression" where it sees
PTHREAD_MUTEX_INITIALIZER:
#include <pthread.h>
class Test {
pthread_mutex_t m;
Test();
};
Test::Test():m(PTHREAD_MUTEX_INITIALIZER) {}
A variant of this, initializing through = assignment, fails as well, with the
same error:
#include <pthread.h>
class Test {
pthread_mutex_t m;
Test();
};
Test::Test() {
m = PTHREAD_MUTEX_INITIALIZER;
}
This is fine, though:
#include <pthread.h>
static const pthread_mutex_t __pthread_mutex_initializer =
PTHREAD_MUTEX_INITIALIZER;
class Test {
pthread_mutex_t m;
Test();
};
Test::Test():m(__pthread_mutex_initializer) {}
I've verified this on Linux with glibc (where PTHREAD_MUTEX_INITIALIZER is { {
0, 0, 0, 0, 0, __PTHREAD_SPINS, { 0, 0 } } } and Android (where
PTHREAD_MUTEX_INITIALIZER is { 0 }.
clang trunk svn rev. 190913.</pre>
</div>
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