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<base href="https://bugs.llvm.org/">
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<body><table border="1" cellspacing="0" cellpadding="8">
<tr>
<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - clang crashes on this code. already submitted to Apple"
href="https://bugs.llvm.org/show_bug.cgi?id=33444">33444</a>
</td>
</tr>
<tr>
<th>Summary</th>
<td>clang crashes on this code. already submitted to Apple
</td>
</tr>
<tr>
<th>Product</th>
<td>clang
</td>
</tr>
<tr>
<th>Version</th>
<td>4.0
</td>
</tr>
<tr>
<th>Hardware</th>
<td>Macintosh
</td>
</tr>
<tr>
<th>OS</th>
<td>MacOS X
</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>C++14
</td>
</tr>
<tr>
<th>Assignee</th>
<td>unassignedclangbugs@nondot.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>bayoubengal@mac.com
</td>
</tr>
<tr>
<th>CC</th>
<td>llvm-bugs@lists.llvm.org
</td>
</tr></table>
<p>
<div>
<pre>this code blows up clang due to having the indexes wrong on cTupleRange<>. it
causes a negative number to be passed std::make_index_sequence<>.
template<typename tpTupleType, size_t tpOffsetIntoTypeList, typename
tpIndexSequenceType>
struct cTupleRange_
{
};
template<typename tpTupleType, size_t tpOffsetIntoTypeList, size_t...
tpIndexes>
struct cTupleRange_<tpTupleType, tpOffsetIntoTypeList,
std::index_sequence<tpIndexes...> >
{
using tuple_type = tpTupleType;
using type = std::tuple< typename std::tuple_element< tpOffsetIntoTypeList
+ tpIndexes, tuple_type>::type... >;
};
template<typename tpTupleType, size_t tpStartIdx, size_t tpEndIdx>
struct cTupleRange
{
using tuple_type = tpTupleType;
static constexpr auto kOffset_value = tpStartIdx;
using index_sequence_type = std::make_index_sequence<tpEndIdx - tpStartIdx>;
int x = index_sequence_type{};
using type = typename cTupleRange_<tuple_type, kOffset_value,
index_sequence_type>::type;
};
int main(int argc, const char * argv[])
{
using x = std::tuple<std::unique_ptr<void, void(*)(void*)>, double,
std::string, float, long, short, char, std::string>; //,
std::unique_ptr<void*, void(*)(void*)> >;
using remainder_type = typename cTupleRange<x, 5, 3>::type;
return 0;
}</pre>
</div>
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