<html>
<head>
<base href="https://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 --- - 'char' type treated incorrectly in expression evaluation when non default type is used"
href="https://llvm.org/bugs/show_bug.cgi?id=23069">23069</a>
</td>
</tr>
<tr>
<th>Summary</th>
<td>'char' type treated incorrectly in expression evaluation when non default type is used
</td>
</tr>
<tr>
<th>Product</th>
<td>lldb
</td>
</tr>
<tr>
<th>Version</th>
<td>unspecified
</td>
</tr>
<tr>
<th>Hardware</th>
<td>All
</td>
</tr>
<tr>
<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>
<tr>
<th>Component</th>
<td>All Bugs
</td>
</tr>
<tr>
<th>Assignee</th>
<td>lldb-dev@cs.uiuc.edu
</td>
</tr>
<tr>
<th>Reporter</th>
<td>tberghammer@google.com
</td>
</tr>
<tr>
<th>Classification</th>
<td>Unclassified
</td>
</tr></table>
<p>
<div>
<pre>When the type of 'char' explicitly specified for the inferior to the opposite
sign then the default on the given architecture (with -fsigned-char or with
-funsigned-char) then the expression evaluation treats 'char' as 'signed char'
or 'unsigned char' what cause incorrect behavior in the following case:
=== main.cpp ===
int foo(char c) { return 1; }
int foo(signed char c) { return 2; }
int foo(unsigned char c) { return 3; }
int main() {
char c = 0;
signed char sc = 0;
unsigned char uc = 0;
return 0; // Break here
}
=== lldb commands ===
stop at line marked by '// Break here'
expression foo(c)
expression foo(sc)
expression foo(uc)
When incorrect type used for 'char' then (at least) one of the expression
evaluates to incorrect value.</pre>
</div>
</p>
<hr>
<span>You are receiving this mail because:</span>
<ul>
<li>You are the assignee for the bug.</li>
</ul>
</body>
</html>