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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - vector::insert(pos, iter, iter) incorrectly requires value-assignment for forward_iterators."
href="https://bugs.llvm.org/show_bug.cgi?id=34906">34906</a>
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<th>Summary</th>
<td>vector::insert(pos, iter, iter) incorrectly requires value-assignment for forward_iterators.
</td>
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<th>Product</th>
<td>libc++
</td>
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<th>Version</th>
<td>unspecified
</td>
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<th>Hardware</th>
<td>PC
</td>
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<th>OS</th>
<td>Windows NT
</td>
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<th>Status</th>
<td>NEW
</td>
</tr>
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<th>Severity</th>
<td>enhancement
</td>
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<th>Priority</th>
<td>P
</td>
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<th>Component</th>
<td>All Bugs
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<th>Assignee</th>
<td>unassignedclangbugs@nondot.org
</td>
</tr>
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<th>Reporter</th>
<td>eric@efcs.ca
</td>
</tr>
<tr>
<th>CC</th>
<td>llvm-bugs@lists.llvm.org, mclow.lists@gmail.com
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<p>
<div>
<pre>According to the spec, this overload of `insert` doesn't require that the
elements in the vector be assignable from the iterator value_type. However
libc++ currently requires this.
Example:
// clang++ -stdlib=libc++ -std=c++11 test.cpp
#include <vector>
template <class T>
struct EmplaceConstructibleAndMoveable {
explicit EmplaceConstructibleAndMoveable(T) {}
EmplaceConstructibleAndMoveable(EmplaceConstructibleAndMoveable&&) =
default;
EmplaceConstructibleAndMoveable&
operator=(EmplaceConstructibleAndMoveable&&) = default;
};
int main() {
using T = EmplaceConstructibleAndMoveable<int>;
std::vector<T> v;
int Inits[] = {1, 2, 3};
v.insert(v.end(), std::begin(Inits), std::end(Inits));
}</pre>
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