/usr/include/ginac/wildcard.h is in libginac-dev 1.7.2-2.
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 | /** @file wildcard.h
*
* Interface to GiNaC's wildcard objects. */
/*
* GiNaC Copyright (C) 1999-2017 Johannes Gutenberg University Mainz, Germany
*
* 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 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, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifndef GINAC_WILDCARD_H
#define GINAC_WILDCARD_H
#include "ex.h"
#include "archive.h"
namespace GiNaC {
/** This class acts as a wildcard for subs(), match(), has() and find(). An
* integer label is used to identify different wildcards. */
class wildcard : public basic
{
GINAC_DECLARE_REGISTERED_CLASS(wildcard, basic)
// other constructors
public:
/** Construct wildcard with specified label. */
wildcard(unsigned label);
// functions overriding virtual functions from base classes
public:
bool match(const ex & pattern, exmap& repl_lst) const override;
/** Save (a.k.a. serialize) object into archive. */
void archive(archive_node& n) const override;
/** Read (a.k.a. deserialize) object from archive. */
void read_archive(const archive_node& n, lst& syms) override;
protected:
unsigned calchash() const override;
// non-virtual functions in this class
public:
unsigned get_label() const {return label;}
protected:
void do_print(const print_context & c, unsigned level) const;
void do_print_tree(const print_tree & c, unsigned level) const;
void do_print_python_repr(const print_python_repr & c, unsigned level) const;
// member variables
private:
unsigned label; /**< Label used to distinguish different wildcards */
};
GINAC_DECLARE_UNARCHIVER(wildcard);
// utility functions
/** Create a wildcard object with the specified label. */
inline ex wild(unsigned label = 0)
{
return wildcard(label);
}
/** Check whether x has a wildcard anywhere as a subexpression. */
bool haswild(const ex & x);
} // namespace GiNaC
#endif // ndef GINAC_WILDCARD_H
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