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* [Bug c++/13406] New: initialisation of instantiated static data member not correct
@ 2003-12-15 23:50 o dot kullmann at swansea dot ac dot uk
2003-12-16 8:28 ` [Bug c++/13406] " bangerth at dealii dot org
2003-12-28 3:26 ` pinskia at gcc dot gnu dot org
0 siblings, 2 replies; 3+ messages in thread
From: o dot kullmann at swansea dot ac dot uk @ 2003-12-15 23:50 UTC (permalink / raw)
To: gcc-bugs
#include <iostream>
#include <ostream>
struct L {
std::ostream& s;
L() : s(std::cout) {}
};
template <class T>
struct S {
static L l;
S() { l.s << ""; }
};
template <class T>
L S<T>::l;
struct X : S<X> {};
X x_global;
int main() {};
-----------------------
This program compiles, and when run, yields a memory error.
However, it should be well-formed and should run without error.
The error disappears when explicitely instantiating the static
data member l of the instantiated class S<X>.
Section 14.7.1 of the standard says that
"in particular, the initialization (and any associated side-effects) of a
static data member does not occur unless the static data member is itself used
in a way that requires the definition of the static data member to exist.",
and thus l should have been initialised before it is used in the body of the
constructor of class S<X> (this is where the error occurs).
--
Summary: initialisation of instantiated static data member not
correct
Product: gcc
Version: 3.3.1
Status: UNCONFIRMED
Severity: normal
Priority: P2
Component: c++
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: o dot kullmann at swansea dot ac dot uk
CC: gcc-bugs at gcc dot gnu dot org
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=13406
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2003-12-15 23:50 [Bug c++/13406] New: initialisation of instantiated static data member not correct o dot kullmann at swansea dot ac dot uk
2003-12-16 8:28 ` [Bug c++/13406] " bangerth at dealii dot org
2003-12-28 3:26 ` pinskia at gcc dot gnu dot org
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