<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 --- - fobjc-exceptions does not imply fexceptions"
href="https://llvm.org/bugs/show_bug.cgi?id=30278">30278</a>
</td>
</tr>
<tr>
<th>Summary</th>
<td>fobjc-exceptions does not imply fexceptions
</td>
</tr>
<tr>
<th>Product</th>
<td>clang
</td>
</tr>
<tr>
<th>Version</th>
<td>unspecified
</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>Driver
</td>
</tr>
<tr>
<th>Assignee</th>
<td>unassignedclangbugs@nondot.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>vries@gcc.gnu.org
</td>
</tr>
<tr>
<th>CC</th>
<td>llvm-bugs@lists.llvm.org
</td>
</tr>
<tr>
<th>Classification</th>
<td>Unclassified
</td>
</tr></table>
<p>
<div>
<pre>Consider basic.m:
...
#import <objc/Object.h>
#import <stdio.h>
int
main (void)
{
@try {
printf ("try\n");
@throw nil;
} @catch (...) {
printf ("caught\n");
}
printf ("done\n");
return 0;
}
...
with gcc, we have:
...
$ gcc basic.m -fobjc-exceptions -lobjc && (./a.out ; echo $? )
try
caught
done
0
...
However, with clang, we have:
...
$ clang basic.m -fobjc-exceptions -lobjc && (./a.out ; echo $? )
try
Aborted (core dumped)
134
...
Only when I add -fexceptions to the clang command line, do I get the same:
...
try
caught
done
0
...
With gcc, -fobjc-exceptions implies -fexceptions (gcc/c-family/c-opts.c):
...
if (flag_objc_exceptions && !flag_objc_sjlj_exceptions)
flag_exceptions = 1;
...</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>