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/*
GNU Octave level-set package.
Copyright (C) 2014 Daniel Kraft <d@domob.eu>
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program 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 General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
/* Template implementations of Utils.hpp. */
/**
* Check and possibly return dimensions of an array. If d1 and d2 are
* both given as positive numbers, check that the array has the given size.
* If one of them is negative (-1), return the dimension along this
* dimension and check only the other one. Throw if mismatch.
* @param var The array to check.
* @param d1 Row dimension.
* @param d2 Column dimension.
* @return Possibly the -1 dimension size.
*/
template<typename Arr>
unsigned
getDimensionReal (const Arr& var, const std::string& name,
int d1, int d2)
{
const dim_vector size = var.dims ();
if (size.length () > 2)
throw std::runtime_error ("Expected at most two dimensions for "
+ name + ".");
assert (size.length () == 2);
const int expected[2] = {d1, d2};
unsigned res = 0;
bool foundRes = false;
for (unsigned i = 0; i < 2; ++i)
if (expected[i] < 0)
{
if (foundRes)
throw std::runtime_error ("Two dimensions unknown for " + name + ".");
foundRes = true;
res = size(i);
}
else if (expected[i] != size(i))
{
std::ostringstream msg;
msg << "Dimension mismatch for " << name
<< " in dimension " << (i + 1) << ": ";
msg << "expected " << expected[i] << ", got " << size(i);
throw std::runtime_error (msg.str ());
}
return res;
}
/**
* Convert a generic container to an Octave ColumnVector.
* @param cont Generic container (e. g., std::vector<double>).
* @return ColumnVector with the container's content.
*/
template<typename C>
ColumnVector
convertToColumnVector (const C& cont)
{
ColumnVector res(cont.size ());
unsigned ind = 0;
for (const auto& el : cont)
res(ind++) = el;
assert (ind == cont.size ());
return res;
}
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