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From: "liweifriends at gmail dot com" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug c++/57818] New: A strange template output
Date: Thu, 04 Jul 2013 08:16:00 -0000
X-Bugzilla-Reason: CC
X-Bugzilla-Type: new
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X-Bugzilla-Product: gcc
X-Bugzilla-Component: c++
X-Bugzilla-Version: 4.8.1
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X-Bugzilla-Severity: normal
X-Bugzilla-Who: liweifriends at gmail dot com
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X-Bugzilla-Priority: P3
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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57818

            Bug ID: 57818
           Summary: A strange template output
           Product: gcc
           Version: 4.8.1
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c++
          Assignee: unassigned at gcc dot gnu.org
          Reporter: liweifriends at gmail dot com

Hi: I have tried the following code in gcc 4.8.1

template<const float* b>
struct h
{
    static constexpr float value()
    {
        return *b;
    }
};

constexpr float a = 3.0f;

int main()
{
    cout<<a<<endl;                //3
    cout<<h<&a>::value<<endl;     //1
    return 0;
}

the output of h<&a>::value seems not correct. Is this a bug? Or just because
the unsupported of C++ ?