/usr/include/casacore/casa/Arrays/ArrayIter.tcc is in casacore-dev 2.2.0-2.
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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 | //# ArrayIter.cc: Iterate an Array cursor through another Array
//# Copyright (C) 1993,1994,1995,1997,1999,2003
//# Associated Universities, Inc. Washington DC, USA.
//#
//# This library is free software; you can redistribute it and/or modify it
//# under the terms of the GNU Library 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 Library General Public
//# License for more details.
//#
//# You should have received a copy of the GNU Library General Public License
//# along with this library; if not, write to the Free Software Foundation,
//# Inc., 675 Massachusetts Ave, Cambridge, MA 02139, USA.
//#
//# Correspondence concerning AIPS++ should be addressed as follows:
//# Internet email: aips2-request@nrao.edu.
//# Postal address: AIPS++ Project Office
//# National Radio Astronomy Observatory
//# 520 Edgemont Road
//# Charlottesville, VA 22903-2475 USA
//#
//# $Id$
#ifndef CASA_ARRAYITER_TCC
#define CASA_ARRAYITER_TCC
#include <casacore/casa/Arrays/ArrayIter.h>
#include <casacore/casa/Arrays/ArrayError.h>
namespace casacore { //# NAMESPACE CASACORE - BEGIN
template<class T> ArrayIterator<T>::ArrayIterator(const Array<T> &a, uInt byDim)
: ArrayPositionIterator(a.shape(), byDim),
ap_p(0)
{
init(a);
}
template<class T> ArrayIterator<T>::ArrayIterator(const Array<T> &a,
const IPosition &axes,
Bool axesAreCursor)
: ArrayPositionIterator(a.shape(), axes, axesAreCursor),
ap_p(0)
{
init(a);
}
template<class T> ArrayIterator<T>::~ArrayIterator()
{
delete ap_p;
}
// <thrown>
// <item> ArrayIteratorError
// </thrown>
template<class T> void ArrayIterator<T>::init(const Array<T> &a)
{
pOriginalArray_p.reference (a);
dataPtr_p = pOriginalArray_p.begin_p;
if (dimIter() < 1)
throw(ArrayIteratorError("ArrayIterator<T>::ArrayIterator<T> - "
" at the moment cannot iterate by scalars"));
IPosition blc(pOriginalArray_p.ndim(), 0);
IPosition trc(pOriginalArray_p.endPosition());
// Calculate what the offset for ap_p->begin is for each step.
// The offset is the value that has to be added to dataPtr_p to go
// to the next chunk.
// The offset calculation must match the way nextStep is iterating.
// The iteration is such that shape(i)-1 steps are made for axis i.
const IPosition& iAxes = iterAxes();
const IPosition& steps = pOriginalArray_p.steps();
const IPosition& shape = pOriginalArray_p.shape();
offset_p.resize (a.ndim());
offset_p = 0;
Int lastoff = 0;
for (uInt i=0; i<iAxes.nelements(); i++) {
uInt axis = iAxes(i);
if (trc(axis) > 0) trc(axis) = 0;
offset_p(axis) = steps(axis) - lastoff;
lastoff += (shape(axis)-1)*steps(axis);
}
// Now diddle with the internal array to ensure that it is the
// correct shape. We only want to remove the iteration axes, not the
// possible degenerate axes in the cursor).
if (dimIter() < pOriginalArray_p.ndim()) {
ap_p = new Array<T>(pOriginalArray_p(blc,trc).nonDegenerate(cursorAxes()));
} else {
// Same dimensionality, so no degenerate axes
ap_p = new Array<T>(pOriginalArray_p);
}
}
// <thrown>
// <item> ArrayIteratorError
// </thrown>
template<class T> void ArrayIterator<T>::apSetPointer(Int stepDim)
{
if (ap_p == 0)
throw(ArrayIteratorError("ArrayIterator<T>::apSetPointer()"
" - no iteration array!"));
if (pastEnd()) {
ap_p->begin_p = 0; // Mark it "invalid"
} else {
if (stepDim < 0) {
dataPtr_p = pOriginalArray_p.begin_p;
} else {
dataPtr_p += offset_p(stepDim);
}
ap_p->begin_p = dataPtr_p;
ap_p->setEndIter();
}
}
template<class T> void ArrayIterator<T>::reset()
{
ArrayPositionIterator::reset();
apSetPointer(-1);
}
template<class T> void ArrayIterator<T>::next()
{
Int stepDim = ArrayPositionIterator::nextStep();
apSetPointer(stepDim);
}
template<class T> void ArrayIterator<T>::set (const IPosition& cursorPos)
{
ArrayPositionIterator::set (cursorPos);
if (ap_p == 0)
throw(ArrayIteratorError("ArrayIterator<T>::apSetPointer()"
" - no iteration array!"));
if (pastEnd()) {
ap_p->begin_p = 0; // Mark it "invalid"
} else {
dataPtr_p = &(pOriginalArray_p(pos()));
ap_p->begin_p = dataPtr_p;
ap_p->setEndIter();
}
}
template<class T> ArrayBase& ArrayIterator<T>::getArray()
{
return array();
}
} //# NAMESPACE CASACORE - END
#endif
|