Mercurial > jwe > octave
view liboctave/array/PermMatrix.h @ 21040:3e7cfee5f786
maint: Rename attributes GCC_ATTR_XXX to OCTAVE_XXX.
* oct-conf-post.in.h: Rename macros GCC_ATTR_XXX to OCTAVE_XXX. Add comments
describing purpose of macros. Add FIXME note about switching macros to C++
standard convention. Add FIXME note about using visibility attributes.
* error.cc, error.h, gripes.h, jit-typeinfo.cc, load-save.cc, oct-stream.cc,
pt-jit.cc, symtab.h, variables.h, ov-base-sparse.h, ov-base.cc, ov-base.h,
ov-class.cc, ov-classdef.cc, ov-classdef.h, ov.cc, ov.h, octave.cc, pt-mat.cc,
Array.h, DiagArray2.h, PermMatrix.h, Range.h, Sparse.h, dSparse.h, f77-fcn.h,
lo-error.c, lo-error.h, quit.h, SparseCmplxQR.cc, lo-array-gripes.h,
unwind-prot.h: Rename attributes GCC_ATTR_XXX to OCTAVE_XXX.
author | Rik <rik@octave.org> |
---|---|
date | Tue, 05 Jan 2016 14:16:58 -0800 |
parents | 91a45293b618 |
children | 54527108599a |
line wrap: on
line source
/* Copyright (C) 2008-2015 Jaroslav Hajek This file is part of Octave. Octave 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. Octave 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 Octave; see the file COPYING. If not, see <http://www.gnu.org/licenses/>. */ #if ! defined (octave_PermMatrix_h) #define octave_PermMatrix_h 1 #include "Array.h" #include "mx-defs.h" // Array<T> is inherited privately so that some methods, like index, don't // produce unexpected results. class OCTAVE_API PermMatrix : protected Array<octave_idx_type> { public: PermMatrix (void) : Array<octave_idx_type> () { } PermMatrix (octave_idx_type n); OCTAVE_DEPRECATED PermMatrix (const Array<octave_idx_type>& p); PermMatrix (const Array<octave_idx_type>& p, bool colp, bool check = true); PermMatrix (const PermMatrix& m) : Array<octave_idx_type> (m) { } OCTAVE_DEPRECATED PermMatrix (const idx_vector& idx); PermMatrix (const idx_vector& idx, bool colp, octave_idx_type n = 0); octave_idx_type dim1 (void) const { return Array<octave_idx_type>::numel (); } octave_idx_type dim2 (void) const { return Array<octave_idx_type>::numel (); } octave_idx_type rows (void) const { return dim1 (); } octave_idx_type cols (void) const { return dim2 (); } octave_idx_type columns (void) const { return dim2 (); } octave_idx_type perm_length (void) const { return Array<octave_idx_type>::numel (); } // FIXME: a dangerous ambiguity? octave_idx_type length (void) const { return perm_length (); } OCTAVE_DEPRECATED octave_idx_type nelem (void) const { return numel (); } octave_idx_type numel (void) const { return dim1 () * dim2 (); } size_t byte_size (void) const { return Array<octave_idx_type>::byte_size (); } dim_vector dims (void) const { return dim_vector (dim1 (), dim2 ()); } const Array<octave_idx_type>& col_perm_vec (void) const { return *this; } octave_idx_type elem (octave_idx_type i, octave_idx_type j) const { return (Array<octave_idx_type>::elem (j) == i) ? 1 : 0; } octave_idx_type checkelem (octave_idx_type i, octave_idx_type j) const; octave_idx_type operator () (octave_idx_type i, octave_idx_type j) const { #if defined (BOUNDS_CHECKING) return checkelem (i, j); #else return elem (i, j); #endif } // These are, in fact, super-fast. PermMatrix transpose (void) const; PermMatrix inverse (void) const; // Determinant, i.e. the sign of permutation. octave_idx_type determinant (void) const; // Efficient integer power of a permutation. PermMatrix power (octave_idx_type n) const; bool is_col_perm (void) const { return true; } bool is_row_perm (void) const { return false; } void print_info (std::ostream& os, const std::string& prefix) const { Array<octave_idx_type>::print_info (os, prefix); } static PermMatrix eye (octave_idx_type n); private: PermMatrix pos_power (octave_idx_type m) const; void setup (const Array<octave_idx_type>& p, bool colp, bool check); void setup (const idx_vector& idx, bool colp, octave_idx_type n); }; // Multiplying permutations together. PermMatrix OCTAVE_API operator * (const PermMatrix& a, const PermMatrix& b); #endif