/usr/include/dolfin/common/Array.h is in libdolfin-dev 2017.2.0.post0-2.
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 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 | // Copyright (C) 2009-2012 Garth N. Wells
//
// This file is part of DOLFIN.
//
// DOLFIN 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 3 of the License, or
// (at your option) any later version.
//
// DOLFIN 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 DOLFIN. If not, see <http://www.gnu.org/licenses/>.
//
// Modified by Anders Logg 2010-2011
// Modified by Joachim B Haga 2012
//
// First added: 2009-12-06
// Last changed: 2012-03-12
#ifndef __DOLFIN_ARRAY_H
#define __DOLFIN_ARRAY_H
#include <cstddef>
#include <sstream>
#include <string>
#include <dolfin/common/constants.h>
#include <dolfin/log/log.h>
namespace dolfin
{
/// This class provides a simple wrapper for a pointer to an array. A
/// purpose of this class is to enable the simple and safe exchange
/// of data between C++ and Python.
template <typename T> class Array
{
public:
/// Create array of size N. Array has ownership.
explicit Array(std::size_t N) : _size(N), _x(new T[N]), _owner(true) {}
/// Construct array from a pointer. Array does not take ownership.
Array(std::size_t N, T* x) : _size(N), _x(x), _owner(false) {}
/// Destructor
~Array()
{
if (_owner)
delete [] _x;
}
/// Return informal string representation (pretty-print).
/// Note that the Array class is not a subclass of Variable (for
/// efficiency) which means that one needs to call str() directly
/// instead of using the info() function on Array objects.
std::string str(bool verbose) const
{
std::stringstream s;
if (verbose)
{
s << str(false) << std::endl << std::endl;
for (std::size_t i = 0; i < size(); i++)
s << i << ": " << (*this)[i] << std::endl;
}
else
s << "<Array<T> of size " << size() << ">";
return s.str();
}
/// Return size of array
std::size_t size() const
{ return _size; }
/// Access value of given entry (const version)
const T& operator[] (std::size_t i) const
{ dolfin_assert(i < _size); return _x[i]; }
/// Access value of given entry (non-const version)
T& operator[] (std::size_t i)
{ dolfin_assert(i < _size); return _x[i]; }
/// Return pointer to data (const version)
const T* data() const
{ return _x; }
/// Return pointer to data (non-const version)
T* data()
{ return _x; }
private:
/// Disable copy construction, to avoid unanticipated sharing or
/// copying of data. This means that an Array must always be passed as
/// reference, or as a (possibly shared) pointer.
Array(const Array& other) = delete;
private:
/// Length of array
const std::size_t _size;
/// Array data
T* _x;
/// True if instance is owner of data
bool _owner;
};
}
#endif
|