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<body><span class="vcard"><a class="email" href="mailto:dblaikie@gmail.com" title="David Blaikie <dblaikie@gmail.com>"> <span class="fn">David Blaikie</span></a>
</span> changed
<a class="bz_bug_link
bz_status_RESOLVED bz_closed"
title="RESOLVED WORKSFORME - -Wsometimes-uninitialized and -Wconditional-uninitialized give suboptimal fixit with 'bool' variables"
href="http://llvm.org/bugs/show_bug.cgi?id=17290">bug 17290</a>
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<table border="1" cellspacing="0" cellpadding="8">
<tr>
<th>What</th>
<th>Removed</th>
<th>Added</th>
</tr>
<tr>
<td style="text-align:right;">Status</td>
<td>NEW
</td>
<td>RESOLVED
</td>
</tr>
<tr>
<td style="text-align:right;">CC</td>
<td>
</td>
<td>dblaikie@gmail.com
</td>
</tr>
<tr>
<td style="text-align:right;">Resolution</td>
<td>---
</td>
<td>WORKSFORME
</td>
</tr></table>
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<b><a class="bz_bug_link
bz_status_RESOLVED bz_closed"
title="RESOLVED WORKSFORME - -Wsometimes-uninitialized and -Wconditional-uninitialized give suboptimal fixit with 'bool' variables"
href="http://llvm.org/bugs/show_bug.cgi?id=17290#c3">Comment # 3</a>
on <a class="bz_bug_link
bz_status_RESOLVED bz_closed"
title="RESOLVED WORKSFORME - -Wsometimes-uninitialized and -Wconditional-uninitialized give suboptimal fixit with 'bool' variables"
href="http://llvm.org/bugs/show_bug.cgi?id=17290">bug 17290</a>
from <span class="vcard"><a class="email" href="mailto:dblaikie@gmail.com" title="David Blaikie <dblaikie@gmail.com>"> <span class="fn">David Blaikie</span></a>
</span></b>
<pre>Works for me:
$ cat bool.c
#include <stdbool.h>
#include <stdio.h>
#include <stdlib.h>
int main (void)
{
bool foo;
if (random() % 2)
{
foo = true;
}
if (foo)
printf ("Hello");
return 0;
}
blaikie@blaikie:~/dev/scratch$ clang++-tot -Weverything bool.c
clang-3.3: warning: treating 'c' input as 'c++' when in C++ mode, this behavior
is deprecated
bool.c:8:7: warning: variable 'foo' is used uninitialized whenever 'if'
condition is false [-Wsometimes-uninitialized]
if (random() % 2)
^~~~~~~~~~~~
bool.c:13:7: note: uninitialized use occurs here
if (foo)
^~~
bool.c:8:3: note: remove the 'if' if its condition is always true
if (random() % 2)
^~~~~~~~~~~~~~~~~
bool.c:7:11: note: initialize the variable 'foo' to silence this warning
bool foo;
^
= false
1 warning generated.</pre>
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