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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - Memory leak is produced due to an appropriate "delete operator" is not called for a "new" statement which throws an exception while another template version of "operator delete" is declared"
href="http://llvm.org/bugs/show_bug.cgi?id=15330">15330</a>
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<th>Summary</th>
<td>Memory leak is produced due to an appropriate "delete operator" is not called for a "new" statement which throws an exception while another template version of "operator delete" is declared
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<th>Product</th>
<td>clang
</td>
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<th>Version</th>
<td>trunk
</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
</td>
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<th>Component</th>
<td>C++
</td>
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<th>Assignee</th>
<td>unassignedclangbugs@nondot.org
</td>
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<th>Reporter</th>
<td>dicomj23@gmail.com
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<th>CC</th>
<td>dgregor@apple.com, llvmbugs@cs.uiuc.edu
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<th>Classification</th>
<td>Unclassified
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<div>
<pre>GCC doesn't produce a memory leak, but it does in clang trunk
$ clang++ --version && cat main.cpp && clang++ main.cpp -o main && ./main
clang version 3.3 (trunk 175738)
Target: i386-pc-linux-gnu
Thread model: posix
#include <iostream>
static bool freed = true;
void * operator new (unsigned int, const bool &) throw() {
return freed = false, (void *)!0;
}
void operator delete (void *, const bool &) throw() {
freed = true;
}
#if 1 // This declaration makes a trick: no one delete is called
template <typename T>
void operator delete (void *, const T &) {
freed = true;
}
#endif
int main() {
try {
struct Throwable { Throwable() { throw int(-1); } };
new (!0) Throwable;
} catch(...) {
if (!freed) { std::cout << "memory leak detected" << std::endl; }
}
return 0;
}
memory leak detected</pre>
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