<html>
<head>
<base href="https://bugs.llvm.org/">
</head>
<body><span class="vcard"><a class="email" href="mailto:balazs.benics@sigmatechnology.se" title="Balazs Benics <balazs.benics@sigmatechnology.se>"> <span class="fn">Balazs Benics</span></a>
</span> changed
<a class="bz_bug_link
bz_status_RESOLVED bz_closed"
title="RESOLVED INVALID - alpha.core.BoolAssignment does not work (at least for C and C++)"
href="https://bugs.llvm.org/show_bug.cgi?id=52296">bug 52296</a>
<br>
<table border="1" cellspacing="0" cellpadding="8">
<tr>
<th>What</th>
<th>Removed</th>
<th>Added</th>
</tr>
<tr>
<td style="text-align:right;">Resolution</td>
<td>---
</td>
<td>INVALID
</td>
</tr>
<tr>
<td style="text-align:right;">Status</td>
<td>REOPENED
</td>
<td>RESOLVED
</td>
</tr></table>
<p>
<div>
<b><a class="bz_bug_link
bz_status_RESOLVED bz_closed"
title="RESOLVED INVALID - alpha.core.BoolAssignment does not work (at least for C and C++)"
href="https://bugs.llvm.org/show_bug.cgi?id=52296#c3">Comment # 3</a>
on <a class="bz_bug_link
bz_status_RESOLVED bz_closed"
title="RESOLVED INVALID - alpha.core.BoolAssignment does not work (at least for C and C++)"
href="https://bugs.llvm.org/show_bug.cgi?id=52296">bug 52296</a>
from <span class="vcard"><a class="email" href="mailto:balazs.benics@sigmatechnology.se" title="Balazs Benics <balazs.benics@sigmatechnology.se>"> <span class="fn">Balazs Benics</span></a>
</span></b>
<pre>It seems like the corresponding AST looks like this:
|-DeclStmt <line:6:3, col:16>
| `-VarDecl <col:3, col:15> col:8 foo 'BOOL':'int' cinit
| `-UnaryOperator <col:14, col:15> 'int' prefix '-'
| `-IntegerLiteral <col:15> 'int' 1
|-DeclStmt <include/stdbool.h:20:15, line:7:17>
| `-VarDecl include/stdbool.h:20:15, line:7:16> col:9 bar 'bool' cinit
| `-ImplicitCastExpr <col:15, col:16> 'bool' <IntegralToBoolean>
| `-UnaryOperator <col:15, col:16> 'int' prefix '-'
| `-IntegerLiteral <col:16> 'int' 1
`-DeclStmt <line:8:3, col:16>
`-VarDecl <col:3, col:15> col:8 qaz 'bool' cinit
`-ImplicitCastExpr <col:14, col:15> 'bool' <IntegralToBoolean>
`-UnaryOperator <col:14, col:15> 'int' prefix '-'
`-IntegerLiteral <col:15> 'int' 1
And, by calling the `getType()->isUnsignedIntegerOrEnumerationType()` on the
`ImplicitCastExpr` nodes, I get `true`.
This suggests to me that the behavior is actually correct, and the implicit
conversion transforms `-1` into `1` according to the C++ language rules.
As a result, `bar` and `qaz` are actually initialized to `true`.
That being said, we should probably extend the checker documentation to
highlight this behavior.</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>