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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - clang++, -Wno-Unused-private-field, and field used in constructor initializer"
href="http://llvm.org/bugs/show_bug.cgi?id=17238">17238</a>
</td>
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<th>Summary</th>
<td>clang++, -Wno-Unused-private-field, and field used in constructor initializer
</td>
</tr>
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<th>Product</th>
<td>clang
</td>
</tr>
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<th>Version</th>
<td>3.3
</td>
</tr>
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<th>Hardware</th>
<td>PC
</td>
</tr>
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<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>
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<th>Component</th>
<td>C++
</td>
</tr>
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<th>Assignee</th>
<td>unassignedclangbugs@nondot.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>noloader@gmail.com
</td>
</tr>
<tr>
<th>CC</th>
<td>dgregor@apple.com, llvmbugs@cs.uiuc.edu
</td>
</tr>
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<th>Classification</th>
<td>Unclassified
</td>
</tr></table>
<p>
<div>
<pre>I'm attempting to build Squid using Clang to get analysis tools on the program.
The program configures with -Werror, which should not be a problem.
$ cd squid-3.3.9
$ ./configure --prefix=/usr/local/squid
$ make all CXX='/usr/local/bin/clang++ -fsanitize=address -fsanitize=undefined
-fno-sanitize=vptr'
...
libtool: compile: /usr/local/bin/clang++ -fsanitize=address
-fsanitize=undefined -fno-sanitize=vptr -DHAVE_CONFIG_H -I../.. -I../../include
-I../../lib -I../../src -I../../include -I/opt/local/include
-I/opt/local/include -I../../libltdl -I/opt/local/include -I/opt/local/include
-Wall -Wpointer-arith -Wwrite-strings -Wcomments -Werror -pipe -D_REENTRANT -g
-O2 -MT Intercept.lo -MD -MP -MF .deps/Intercept.Tpo -c Intercept.cc
-fno-common -DPIC -o .libs/Intercept.o
In file included from Intercept.cc:35:
../../src/ip/Intercept.h:146:12: error: private field 'lastReported_' is not
used [-Werror,-Wunused-private-field]
time_t lastReported_; /**< Time of last error report. Throttles NAT ...
^
1 error generated.
make[3]: *** [Intercept.lo] Error 1
make[2]: *** [all-recursive] Error 1
make[1]: *** [all] Error 2
make: *** [all-recursive] Error 1
When I examine Intercept.h, the constructor initializes the filed, so it
appears the variable is used:
Intercept() : transparentActive_(0), interceptActive_(0), lastReported_(0)
{};
Additionally, specifying -Wno-unused-private-field does not suppress the
warning
I found I can work around with:
Intercept() : transparentActive_(0), interceptActive_(0), lastReported_(0)
{ (void)lastReported_; };
However, it appears this one-off solution does not scale since there's lots of
these problems.</pre>
</div>
</p>
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