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From: "daniel.kruegler at googlemail dot com" <gcc-bugzilla@gcc.gnu.org>
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Subject: [Bug c++/52320] missing destructor call after thrown exception in initializer
Date: Tue, 21 Feb 2012 08:38:00 -0000
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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D52320

Daniel Kr=C3=BCgler <daniel.kruegler at googlemail dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |daniel.kruegler at
                   |                            |googlemail dot com

--- Comment #1 from Daniel Kr=C3=BCgler <daniel.kruegler at googlemail dot =
com> 2012-02-21 08:26:30 UTC ---
Confirmed for 4.7.0 20120218 (experimental).

Reduced example with added information:

//----
#include <iostream>

#define FUNCTION_NAME __PRETTY_FUNCTION__

#define TRACE_FUNCTION(I) { std::cout << this << "->" << FUNCTION_NAME << "=
; i
=3D " << I << std::endl; }

struct A {
  int i;
  A(int i) : i(i) { TRACE_FUNCTION(i); }
  A(const A& rhs) : i(rhs.i) { TRACE_FUNCTION(i); }
  A &operator=3D(const A& rhs) { i =3D rhs.i; TRACE_FUNCTION(i); return *th=
is; }
  ~A() { TRACE_FUNCTION(i); }
};

struct Y {
  A e1[2];
};

int main() {
  try {
    Y y1[1] =3D { {{1, (throw 0, 2)} } };
  } catch (int) {
  }
}
//----

Observed output is:

0x22fd60->A::A(int); i =3D 1

It does not happen when the local array y1 is replaced by a non-array Y.