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<base href="https://bugs.llvm.org/">
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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - clang rejects legal code"
href="https://bugs.llvm.org/show_bug.cgi?id=37869">37869</a>
</td>
</tr>
<tr>
<th>Summary</th>
<td>clang rejects legal code
</td>
</tr>
<tr>
<th>Product</th>
<td>clang
</td>
</tr>
<tr>
<th>Version</th>
<td>unspecified
</td>
</tr>
<tr>
<th>Hardware</th>
<td>PC
</td>
</tr>
<tr>
<th>OS</th>
<td>Linux
</td>
</tr>
<tr>
<th>Status</th>
<td>NEW
</td>
</tr>
<tr>
<th>Severity</th>
<td>enhancement
</td>
</tr>
<tr>
<th>Priority</th>
<td>P
</td>
</tr>
<tr>
<th>Component</th>
<td>C++
</td>
</tr>
<tr>
<th>Assignee</th>
<td>unassignedclangbugs@nondot.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>zhonghao@pku.org.cn
</td>
</tr>
<tr>
<th>CC</th>
<td>dgregor@apple.com, llvm-bugs@lists.llvm.org
</td>
</tr></table>
<p>
<div>
<pre>The code is as follow:
//#include <iostream>
//using namespace std;
class Z {
public:
// gcc version egcs-2.91.66 19990314/Linux (egcs-1.1.2 release) allows to
// write Z(int) while gcc version 2.97 20010205 wants Z(int j=43)
Z(int);
//void print ();
private:
int i;
};
Z::Z(int j=43): i(j){}
//void Z::print(void){ cout << "Z : i= " << i << ".\n";}
int main()
{
Z zobject=Z();
//zobject.print();
}
clang++ rejects, and produces the following error messages:
error: addition of default argument on redeclaration makes this constructor a
default constructor
Z::Z(int j=43): i(j){}
^ ~~
note: previous declaration is here
A previous version of gcc also rejects the code. The bug report is
<a href="https://gcc.gnu.org/bugzilla/show_bug.cgi?id=2189">https://gcc.gnu.org/bugzilla/show_bug.cgi?id=2189</a>
The gcc bug is fixed.</pre>
</div>
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