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* [Bug c++/23585] New: mem_fun* code fine with -O1, bus error with -O2
@ 2005-08-26 22:14 matti dot rintala at iki dot fi
2005-08-26 22:16 ` [Bug c++/23585] " pinskia at gcc dot gnu dot org
` (2 more replies)
0 siblings, 3 replies; 4+ messages in thread
From: matti dot rintala at iki dot fi @ 2005-08-26 22:14 UTC (permalink / raw)
To: gcc-bugs
The following code (definitions of mem_fun* taken from <functional>) works fine
when compiled with -O1, but causes a bus error crash when compiled with -O2.
--------------------
// Templates taken from <functional>
template <class _Ret, class _Tp>
class const_mem_fun_t
{
public:
explicit
const_mem_fun_t(_Ret (_Tp::*__pf)() const)
: _M_f(__pf) {}
_Ret
operator()(const _Tp* __p) const
{ return (__p->*_M_f)(); }
private:
_Ret (_Tp::*_M_f)() const;
};
template <class _Ret, class _Tp>
class const_mem_fun_ref_t
{
public:
explicit
const_mem_fun_ref_t(_Ret (_Tp::*__pf)() const)
: _M_f(__pf) {}
_Ret
operator()(const _Tp& __r) const
{ return (__r.*_M_f)(); }
private:
_Ret (_Tp::*_M_f)() const;
};
template <class _Ret, class _Tp, class _Arg>
class const_mem_fun1_t
{
public:
explicit
const_mem_fun1_t(_Ret (_Tp::*__pf)(_Arg) const)
: _M_f(__pf) {}
_Ret
operator()(const _Tp* __p, _Arg __x) const
{ return (__p->*_M_f)(__x); }
private:
_Ret (_Tp::*_M_f)(_Arg) const;
};
template <class _Ret, class _Tp, class _Arg>
class const_mem_fun1_ref_t
{
public:
explicit
const_mem_fun1_ref_t(_Ret (_Tp::*__pf)(_Arg) const)
: _M_f(__pf) {}
_Ret
operator()(const _Tp& __r, _Arg __x) const
{ return (__r.*_M_f)(__x); }
private:
_Ret (_Tp::*_M_f)(_Arg) const;
};
template <class _Ret, class _Tp>
inline const_mem_fun_t<_Ret, _Tp>
mem_fun(_Ret (_Tp::*__f)() const)
{ return const_mem_fun_t<_Ret, _Tp>(__f); }
template <class _Ret, class _Tp>
inline const_mem_fun_ref_t<_Ret, _Tp>
mem_fun_ref(_Ret (_Tp::*__f)() const)
{ return const_mem_fun_ref_t<_Ret, _Tp>(__f); }
template <class _Ret, class _Tp, class _Arg>
inline const_mem_fun1_t<_Ret, _Tp, _Arg>
mem_fun(_Ret (_Tp::*__f)(_Arg) const)
{ return const_mem_fun1_t<_Ret, _Tp, _Arg>(__f); }
template <class _Ret, class _Tp, class _Arg>
inline const_mem_fun1_ref_t<_Ret, _Tp, _Arg>
mem_fun_ref(_Ret (_Tp::*__f)(_Arg) const)
{ return const_mem_fun1_ref_t<_Ret, _Tp, _Arg>(__f); }
class Class {
public:
void vf0c() const;
void vf1c(const int&) const;
};
int main()
{
Class obj;
const Class& objc = obj;
mem_fun(&Class::vf0c)(&objc);
mem_fun(&Class::vf1c)(&objc, 1);
mem_fun_ref(&Class::vf0c)(objc);
mem_fun_ref(&Class::vf1c)(objc, 1);
}
void Class::vf0c() const
{}
void Class::vf1c(const int&) const
{}
--
Summary: mem_fun* code fine with -O1, bus error with -O2
Product: gcc
Version: 4.0.1
Status: UNCONFIRMED
Severity: critical
Priority: P2
Component: c++
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: matti dot rintala at iki dot fi
CC: gcc-bugs at gcc dot gnu dot org
GCC build triplet: sparc-sun-solaris2.8
GCC host triplet: sparc-sun-solaris2.8
GCC target triplet: sparc-sun-solaris2.8
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=23585
^ permalink raw reply [flat|nested] 4+ messages in thread
* [Bug c++/23585] mem_fun* code fine with -O1, bus error with -O2
2005-08-26 22:14 [Bug c++/23585] New: mem_fun* code fine with -O1, bus error with -O2 matti dot rintala at iki dot fi
@ 2005-08-26 22:16 ` pinskia at gcc dot gnu dot org
2005-08-27 22:12 ` pinskia at gcc dot gnu dot org
2005-08-27 22:16 ` [Bug middle-end/23585] " pinskia at gcc dot gnu dot org
2 siblings, 0 replies; 4+ messages in thread
From: pinskia at gcc dot gnu dot org @ 2005-08-26 22:16 UTC (permalink / raw)
To: gcc-bugs
------- Additional Comments From pinskia at gcc dot gnu dot org 2005-08-26 22:14 -------
I think this has already been fixed in 4.0.2 but I have not tested it.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=23585
^ permalink raw reply [flat|nested] 4+ messages in thread
* [Bug c++/23585] mem_fun* code fine with -O1, bus error with -O2
2005-08-26 22:14 [Bug c++/23585] New: mem_fun* code fine with -O1, bus error with -O2 matti dot rintala at iki dot fi
2005-08-26 22:16 ` [Bug c++/23585] " pinskia at gcc dot gnu dot org
@ 2005-08-27 22:12 ` pinskia at gcc dot gnu dot org
2005-08-27 22:16 ` [Bug middle-end/23585] " pinskia at gcc dot gnu dot org
2 siblings, 0 replies; 4+ messages in thread
From: pinskia at gcc dot gnu dot org @ 2005-08-27 22:12 UTC (permalink / raw)
To: gcc-bugs
--
What |Removed |Added
----------------------------------------------------------------------------
Severity|critical |normal
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=23585
^ permalink raw reply [flat|nested] 4+ messages in thread
* [Bug middle-end/23585] mem_fun* code fine with -O1, bus error with -O2
2005-08-26 22:14 [Bug c++/23585] New: mem_fun* code fine with -O1, bus error with -O2 matti dot rintala at iki dot fi
2005-08-26 22:16 ` [Bug c++/23585] " pinskia at gcc dot gnu dot org
2005-08-27 22:12 ` pinskia at gcc dot gnu dot org
@ 2005-08-27 22:16 ` pinskia at gcc dot gnu dot org
2 siblings, 0 replies; 4+ messages in thread
From: pinskia at gcc dot gnu dot org @ 2005-08-27 22:16 UTC (permalink / raw)
To: gcc-bugs
--
What |Removed |Added
----------------------------------------------------------------------------
Component|c++ |middle-end
Keywords| |wrong-code
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=23585
^ permalink raw reply [flat|nested] 4+ messages in thread
end of thread, other threads:[~2005-08-27 22:12 UTC | newest]
Thread overview: 4+ messages (download: mbox.gz / follow: Atom feed)
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2005-08-26 22:14 [Bug c++/23585] New: mem_fun* code fine with -O1, bus error with -O2 matti dot rintala at iki dot fi
2005-08-26 22:16 ` [Bug c++/23585] " pinskia at gcc dot gnu dot org
2005-08-27 22:12 ` pinskia at gcc dot gnu dot org
2005-08-27 22:16 ` [Bug middle-end/23585] " pinskia at gcc dot gnu dot org
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