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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 --- - libclang/Windows: exceptions are not supported by default [regression from 3.6.2]"
href="https://llvm.org/bugs/show_bug.cgi?id=27324">27324</a>
</td>
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<tr>
<th>Summary</th>
<td>libclang/Windows: exceptions are not supported by default [regression from 3.6.2]
</td>
</tr>
<tr>
<th>Product</th>
<td>clang
</td>
</tr>
<tr>
<th>Version</th>
<td>3.8
</td>
</tr>
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<th>Hardware</th>
<td>PC
</td>
</tr>
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<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>libclang
</td>
</tr>
<tr>
<th>Assignee</th>
<td>unassignedclangbugs@nondot.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>nikolai.kosjar@theqtcompany.com
</td>
</tr>
<tr>
<th>CC</th>
<td>klimek@google.com, llvm-bugs@lists.llvm.org
</td>
</tr>
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<th>Classification</th>
<td>Unclassified
</td>
</tr></table>
<p>
<div>
<pre>libclang 3.6.2 on Windows can parse code with exceptions just fine, whereas lib
clang 3.8.0 produces "error: cannot use 'try' with exceptions disabled".
Providing -### as argument shows that libclang 3.8.0 does not have the
corresponding options -fcxx-exceptions and -fexceptions internally (libclang
3.6.2 did).
This forces libclang clients to explicitly pass in those options in order to
parse MSVC headers.
Details:
Given the following program making use of libclang:
#include <clang-c/Index.h>
#include <cstdlib>
#include <cstdio>
int main(int argc, char *argv[])
{
if (argc != 2) {
fprintf(stderr, "Usage: $0 <file>\n");
return 0;
}
CXIndex index = clang_createIndex(0, /*displayDiagnostics*/ 1);
clang_parseTranslationUnit(index, argv[1], 0, 0, NULL, 0, 0);
return 0;
}
and the sample "inputfile.cpp":
int main()
{
try { } catch (...) {}
}
shows that:
libclang 3.8.0:
$ libclangclient.exe intputfile.cpp:
inputfile.cpp:3:5: error: cannot use 'try' with exceptions disabled
$
libclang 3.6.2:
$ libclangclient.exe intputfile.cpp:
$</pre>
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