/usr/include/sigc++-1.2/sigc++/trait.h is in libsigc++-1.2-dev 1.2.7-2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 | // -*- c++ -*-
/*
Copyright 2000, Karl Einar Nelson
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#ifndef SIGC_TRAIT
#define SIGC_TRAIT
#include <sigcconfig.h>
#ifdef SIGC_CXX_NAMESPACES
namespace SigC
{
#endif
#ifdef SIGC_CXX_SPECIALIZE_REFERENCES
template <class T>
struct Trait
{
typedef T type;
typedef const T& ref;
};
template <class T>
struct Trait<T&>
{
typedef T& type;
typedef T& ref;
};
#else
// for really dumb compilers, we have to copy rather than reference
template <class T>
struct Trait
{
typedef T type;
typedef T ref;
};
#endif
#ifdef SIGC_CXX_VOID_RETURN
template <>
struct Trait<void>
{
typedef void type;
};
#else
template <>
struct Trait<void>
{
typedef int type;
};
#endif
#ifdef SIGC_CXX_NAMESPACES
}
#endif
#endif // SIGC_TRAIT
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