4  1563 
>I found a bug in VC++ .NET 2003 regarding default initialization of arrays of primitives in a constructor initialization list, as detailed
in this post:
http://groups.google.com/group/comp....b44a8b786b6a79
and in the reply by Dietmar Kuehl, in which he quotes the relevant
portion of the C++ Standard:
http://groups.google.com/group/comp....a9fecc4f5d7d57
I tried to file a bug report at
http://lab.msdn.microsoft.com/produc...k/default.aspx
but they only let you submit bug reports for VC++ 2005, which I am
unable to install at the moment, and I am not sure if the bug is present
in the newer version.
Can anybody confirm if this bug is present in the newer version?
This is the output when compiled with VC2005
During compilation:
warning C4351: new behavior: elements of array 'Init::ai' will be default
initialized
warning C4351: new behavior: elements of array 'Init::bi' will be default
initialized
When running
UnInit:
ai = {-858993460, -858993460, -858993460, -858993460, }
bi = {204, 204, 204, 204, }
Init:
ai = {0, 0, 0, 0, }
bi = {0, 0, 0, 0, }
--
Kind regards,
Bruno van Dooren br**********************@hotmail.com
Remove only "_nos_pam"
Bruno van Dooren <br**********************@hotmail.com> wrote: I found a bug in VC++ .NET 2003 regarding default initialization of
arrays of primitives in a constructor initialization list, as detailed
in this post:
http://groups.google.com/group/comp....b44a8b786b6a79
and in the reply by Dietmar Kuehl, in which he quotes the relevant
portion of the C++ Standard:
http://groups.google.com/group/comp....a9fecc4f5d7d57
I tried to file a bug report at
http://lab.msdn.microsoft.com/produc...k/default.aspx
but they only let you submit bug reports for VC++ 2005, which I am
unable to install at the moment, and I am not sure if the bug is present
in the newer version.
Can anybody confirm if this bug is present in the newer version?
This is the output when compiled with VC2005
During compilation:
warning C4351: new behavior: elements of array 'Init::ai' will be default
initialized
warning C4351: new behavior: elements of array 'Init::bi' will be default
initialized
When running
UnInit:
ai = {-858993460, -858993460, -858993460, -858993460, ^H^H}
bi = {204, 204, 204, 204, ^H^H}
Init:
ai = {0, 0, 0, 0, ^H^H}
bi = {0, 0, 0, 0, ^H^H}
I see, so they fixed it in the new version. Thanks for checking this
for me, and I will not file a bug report.
--
Marcus Kwok
>I found a bug in VC++ .NET 2003 regarding default initialization of arrays of primitives in a constructor initialization list, as detailed
in this post:
http://groups.google.com/group/comp....b44a8b786b6a79
and in the reply by Dietmar Kuehl, in which he quotes the relevant
portion of the C++ Standard:
http://groups.google.com/group/comp....a9fecc4f5d7d57
Funny enough the following change works as expected:
struct Init_POD
{
int ai[Size];
bool bi[Size];
};
class Init {
Init_POD pods;
public:
Init() : pods() { }
friend std::ostream& operator<<(std::ostream& o, const Init& i);
};
std::ostream&
operator<<(std::ostream& o, const Init& in)
{
o << "Init:\n";
o << "ai = {";
std::copy(in.pods.ai, in.pods.ai + Size, std::ostream_iterator<int>(o,
", "));
o << "\b\b}\n";
o << "bi = {";
std::copy(in.pods.bi, in.pods.bi + Size, std::ostream_iterator<bool>(o,
", "));
o << "\b\b}";
return o;
}
Regards,
Patrick
Patrick Kowalzick <pa***************@mapandguide.de> wrote: I found a bug in VC++ .NET 2003 regarding default initialization of
arrays of primitives in a constructor initialization list, as detailed
in this post:
http://groups.google.com/group/comp....b44a8b786b6a79
and in the reply by Dietmar Kuehl, in which he quotes the relevant
portion of the C++ Standard:
http://groups.google.com/group/comp....a9fecc4f5d7d57
Funny enough the following change works as expected:
struct Init_POD
{
int ai[Size];
bool bi[Size];
};
class Init {
Init_POD pods;
public:
Init() : pods() { }
friend std::ostream& operator<<(std::ostream& o, const Init& i);
};
Hmm, that is interesting! Thanks.
--
Marcus Kwok This thread has been closed and replies have been disabled. Please start a new discussion. Similar topics
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