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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - Differences of lifetime of temporary objects during list-initialization with g++,MSVS and icpc"
href="https://llvm.org/bugs/show_bug.cgi?id=29080">29080</a>
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<th>Summary</th>
<td>Differences of lifetime of temporary objects during list-initialization with g++,MSVS and icpc
</td>
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<th>Product</th>
<td>clang
</td>
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<th>Version</th>
<td>3.8
</td>
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<th>Hardware</th>
<td>PC
</td>
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<th>OS</th>
<td>Linux
</td>
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<th>Status</th>
<td>NEW
</td>
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<th>Severity</th>
<td>normal
</td>
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<th>Priority</th>
<td>P
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<th>Component</th>
<td>C++11
</td>
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<th>Assignee</th>
<td>unassignedclangbugs@nondot.org
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<th>Reporter</th>
<td>noone@turm-lahnstein.de
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<th>CC</th>
<td>dgregor@apple.com, llvm-bugs@lists.llvm.org
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<th>Classification</th>
<td>Unclassified
</td>
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<p>
<div>
<pre>Following this stackoverflow discussion
<a href="http://stackoverflow.com/questions/39025342/lifetime-of-temporary-objects-during-list-initialization">http://stackoverflow.com/questions/39025342/lifetime-of-temporary-objects-during-list-initialization</a>
The behaviour of clang differs from the behaviour of other compilers for this
code:
#include <iostream>
#include <vector>
struct ID{
static int cnt;
// the number of living object of class ID at the moment of creation:
int id;
ID():id(++cnt){}
~ID(){
cnt--;
}
};
int ID::cnt=0;
int main(){
int arr[]{ID().id, ID().id};
std::cout<<" Array: "<<arr[0]<<", "<<arr[1]<<"\n";
}
The clang compiled program prints out "1, 2", but programs produced by other
compilers give "1, 1".
Actually, I don't know what the right behaviour should be, but because other
compilers seem to agree, I report the bug here.</pre>
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