/usr/include/polymake/common/labels.h is in libpolymake-dev-common 3.2r2-3.
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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 | /* Copyright (c) 1997-2018
Ewgenij Gawrilow, Michael Joswig (Technische Universitaet Berlin, Germany)
http://www.polymake.org
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 2, or (at your option) any
later version: http://www.gnu.org/licenses/gpl.txt.
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.
--------------------------------------------------------------------------------
*/
#ifndef POLYMAKE_COMMON_LABELS_H
#define POLYMAKE_COMMON_LABELS_H
#include "polymake/client.h"
#include "polymake/vector"
namespace polymake { namespace common {
//! Read a `labels' property
//! Generate labels from integrals 0..n_labels-1 if the property does not exist
std::vector<std::string> read_labels(const perl::Object& p, AnyString label_prop, int n_labels);
//! Read a `labels' property into a properly sized container
template <typename Container>
typename std::enable_if<pm::isomorphic_to_container_of<Container, std::string>::value>::type
read_labels(const perl::Object& p, AnyString label_prop, Container& labels)
{
if (!(p.lookup(label_prop) >> labels)) {
int i=0;
for (auto l=entire(labels); !l.at_end(); ++l, ++i)
*l=std::to_string(i);
}
}
} }
#endif // POLYMAKE_COMMON_LABELS_H
// Local Variables:
// mode:C++
// c-basic-offset:3
// indent-tabs-mode:nil
// End:
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