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<base href="https://llvm.org/bugs/" />
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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW " title="NEW --- - -Wincompatible-pointer-types-discards-qualifiers should note the particular discarded qualifiers" href="https://urldefense.proofpoint.com/v2/url?u=https-3A__llvm.org_bugs_show-5Fbug.cgi-3Fid-3D23642&d=AwMBaQ&c=8hUWFZcy2Z-Za5rBPlktOQ&r=pF93YEPyB-J_PERP4DUZOJDzFVX5ZQ57vQk33wu0vio&m=Rqd7g7qzrVku_EgkYqAqMPAy9sMnr7sQNDSvoJ7DIk0&s=nTW8CjYoUKPXYGQMp02vQhy8rpVeVLZs6jAd8o69fC8&e=">23642</a>
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<th>Summary</th>
<td>-Wincompatible-pointer-types-discards-qualifiers should note the particular discarded qualifiers
</td>
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<th>Product</th>
<td>clang
</td>
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<th>Version</th>
<td>trunk
</td>
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<th>Hardware</th>
<td>PC
</td>
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<th>OS</th>
<td>All
</td>
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<th>Status</th>
<td>NEW
</td>
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<th>Severity</th>
<td>enhancement
</td>
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<th>Priority</th>
<td>P
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<th>Component</th>
<td>-New Bugs
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<th>Assignee</th>
<td>unassignedclangbugs@nondot.org
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<th>Reporter</th>
<td>jonathan@codesourcery.com
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<th>CC</th>
<td>llvmbugs@cs.uiuc.edu
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<th>Classification</th>
<td>Unclassified
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</tr></table>
<p>
<div>
<pre>Clang 3.6 does this:
$ cat cc.c
int main() {
char * c;
char const ** c2 = &c;
}
$ clang cc.c
cc.c:3:16: warning: initializing 'const char **' with an expression of type
'char **' discards qualifiers in nested pointer types
[-Wincompatible-pointer-types-discards-qualifiers]
char const ** c2 = &c;
^ ~~
1 warning generated.
It would be very nice if something like this were emitted instead:
cc.c:3:16: warning: initializing 'const char **' with an expression of type
'char **' discards qualifiers in nested pointer types
[-Wincompatible-pointer-types-discards-qualifiers]
char const ** c2 = &c;
^ ~~
cc.c:3:7: note: nested pointer type with discarded 'const' qualifier
char const ** c2 = &c;
---- ^^^^^ -</pre>
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