[Bug c++/23904] New: Const function selection

[dsell at agleader dot com]

class OtherClass;

class MyClass
{
public:
const OtherClass* GetOther() const { return ( m_other_p ); }

protected:
OtherClass* GetOther() { return ( m_other_p ); }

OtherClass *m_other_p;

friend class FriendClass;
};

In this case friend classes are allowed to access non-const data, but other
classes can only access the const data. The problem is that the compiler does
not recognize that other classes can call the GetOther() const function. It only
tries to use the non-const version and reports that the function is protected.
The two classes do have different C-V qualifiers so they have different
signatures. There is a workaround for this bug that you can declare a pointer to
a const MyClass and then call GetOther() which forces the compiler to look for a
const version of the function.

-- 
   Summary: Const function selection
   Product: gcc
   Version: 4.0.0
Status: UNCONFIRMED
  Severity: normal
  Priority: P2
 Component: c++
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: dsell at agleader dot com
CC: gcc-bugs at gcc dot gnu dot org


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=23904

[Bug c++/23298] New: Float value assignements differ when inside a for loop

[dsell at agleader dot com]

r -3654766718615552.00
-85911792 * 42540895 = -3654764571131904.00 or -3654764571131904.00
-85911877 * 42540731 = -3654754102149120.00 or -3654754370584576.00
-85911996 * 42540613 = -3654749270310912.00 or -3654749001875456.00
-85912216 * 42540335 = -3654734506360832.00 or -3654734506360832.00
-85912609 * 42540178 = -3654737727586304.00 or -3654737459150848.00
-85912778 * 42539993 = -3654728869216256.00 or -3654728869216256.00
-85912884 * 42539795 = -3654716252749824.00 or -3654716521185280.00
-85912924 * 42538217 = -3654582840328192.00 or -3654582571892736.00
-85912974 * 42537898 = -3654557338959872.00 or -3654557338959872.00
-85911106 * 42537898 = -3654477882064896.00 or -3654477613629440.00

--

The sample code was built with the following make file:

floatcast: floatcast.cpp
g++ -o floatcast floatcast.cpp

---

-- 
   Summary: Float value assignements differ when inside a for loop
   Product: gcc
   Version: 3.4.3
Status: UNCONFIRMED
  Severity: normal
  Priority: P2
 Component: c++
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: dsell at agleader dot com
CC: gcc-bugs at gcc dot gnu dot org


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=23298

[Bug c++/23298] Float value assignements differ when inside a for loop

[dsell at agleader dot com]

--- Additional Comments From dsell at agleader dot com  2005-08-09 20:24 
---
We did come to the realization that we should be using doubles to store the
values, because the values we were comparing were really too large for floats. 
However, the fact that rearranging the code or compiling on one platform vs
another could cause different results seemed to be wrong behaivour.

-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=23298