/usr/include/ginac/ncmul.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 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 | /** @file ncmul.h
*
* Interface to GiNaC's non-commutative products of expressions. */
/*
* 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_NCMUL_H
#define GINAC_NCMUL_H
#include "exprseq.h"
#include "archive.h"
namespace GiNaC {
/** Non-commutative product of expressions. */
class ncmul : public exprseq
{
GINAC_DECLARE_REGISTERED_CLASS(ncmul, exprseq)
friend class power;
friend ex reeval_ncmul(const exvector & v);
friend ex hold_ncmul(const exvector & v);
// member functions
// other constructors
public:
ncmul(const ex & lh, const ex & rh);
ncmul(const ex & f1, const ex & f2, const ex & f3);
ncmul(const ex & f1, const ex & f2, const ex & f3,
const ex & f4);
ncmul(const ex & f1, const ex & f2, const ex & f3,
const ex & f4, const ex & f5);
ncmul(const ex & f1, const ex & f2, const ex & f3,
const ex & f4, const ex & f5, const ex & f6);
ncmul(const exvector & v);
ncmul(exvector && v);
// functions overriding virtual functions from base classes
public:
unsigned precedence() const override {return 50;}
bool info(unsigned inf) const override;
int degree(const ex & s) const override;
int ldegree(const ex & s) const override;
ex expand(unsigned options=0) const override;
ex coeff(const ex & s, int n=1) const override;
ex eval() const override;
ex evalm() const override;
exvector get_free_indices() const override;
ex thiscontainer(const exvector & v) const override;
ex thiscontainer(exvector && v) const override;
ex conjugate() const override;
ex real_part() const override;
ex imag_part() const override;
protected:
ex derivative(const symbol & s) const override;
unsigned return_type() const override;
return_type_t return_type_tinfo() const override;
// new virtual functions which can be overridden by derived classes
// none
// non-virtual functions in this class
protected:
void do_print(const print_context & c, unsigned level) const;
void do_print_csrc(const print_context & c, unsigned level) const;
size_t count_factors(const ex & e) const;
void append_factors(exvector & v, const ex & e) const;
exvector expandchildren(unsigned options) const;
public:
const exvector & get_factors() const;
};
GINAC_DECLARE_UNARCHIVER(ncmul);
// friend funtions
ex reeval_ncmul(const exvector & v);
ex hold_ncmul(const exvector & v);
} // namespace GiNaC
#endif // ndef GINAC_NCMUL_H
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