Mercurial > octave
view liboctave/array/PermMatrix.h @ 29654:d13d090cb03a stable
use std::size_t and std::ptrdiff_t in C++ code (bug #60471)
Files affected: make_int.cc, file-editor-tab.cc, octave-qscintilla.cc,
Cell.cc, Cell.h, call-stack.cc, call-stack.h, cellfun.cc, data.cc,
debug.cc, dlmread.cc, error.cc, event-queue.h, fcn-info.cc,
fcn-info.h, file-io.cc, ft-text-renderer.cc, gl2ps-print.cc,
graphics.cc, graphics.in.h, help.cc, hex2num.cc, input.cc,
latex-text-renderer.cc, load-path.cc, load-save.cc, load-save.h,
ls-hdf5.cc, ls-mat-ascii.cc, ls-mat5.cc, ls-oct-text.cc, mex.cc,
mexproto.h, mxarray.h, oct-map.cc, oct-stream.cc, oct-stream.h,
pager.cc, pager.h, pr-output.cc, regexp.cc, settings.h,
stack-frame.cc, stack-frame.h, strfns.cc, syminfo.cc, symrec.h,
symscope.cc, symscope.h, symtab.cc, sysdep.cc, toplev.cc, utils.cc,
utils.h, variables.cc, __fltk_uigetfile__.cc, __init_fltk__.cc,
audioread.cc, gzip.cc, cdef-class.cc, cdef-manager.cc, cdef-method.cc,
cdef-object.cc, cdef-object.h, ov-base-diag.cc, ov-base-diag.h,
ov-base-mat.cc, ov-base-mat.h, ov-base-scalar.cc, ov-base-scalar.h,
ov-base-sparse.h, ov-base.cc, ov-base.h, ov-cell.cc, ov-cell.h,
ov-ch-mat.cc, ov-class.cc, ov-class.h, ov-classdef.cc,
ov-fcn-handle.cc, ov-java.cc, ov-lazy-idx.h, ov-perm.cc, ov-perm.h,
ov-range.h, ov-str-mat.cc, ov-struct.cc, ov-struct.h, ov-usr-fcn.cc,
ov-usr-fcn.h, ov.cc, ov.h, ovl.cc, octave.cc, bp-table.cc, jit-ir.cc,
jit-ir.h, jit-typeinfo.cc, jit-typeinfo.h, jit-util.h, lex.h, lex.ll,
oct-lvalue.cc, oct-parse.yy, parse.h, profiler.h, pt-eval.cc,
pt-eval.h, pt-jit.cc, pt-jit.h, pt-pr-code.cc, pt-tm-const.cc,
pt-tm-const.h, Array.h, CMatrix.cc, DiagArray2.h, PermMatrix.h,
Sparse.h, dMatrix.cc, fCMatrix.cc, fMatrix.cc, bsxfun-defs.cc,
oct-fftw.cc, oct-fftw.h, randpoisson.cc, sparse-chol.cc,
mx-inlines.cc, file-ops.cc, lo-sysdep.cc, oct-env.cc, oct-time.cc,
action-container.cc, action-container.h, base-list.h, caseless-str.h,
cmd-edit.cc, cmd-hist.cc, data-conv.cc, data-conv.h, f77-fcn.h,
file-info.cc, file-info.h, kpse.cc, kpse.h, lo-cutils.h, lo-hash.h,
lo-regexp.cc, oct-base64.cc, oct-base64.h, oct-binmap.h, oct-glob.cc,
oct-shlib.cc, oct-shlib.h, oct-sort.cc, oct-sparse.h, oct-string.cc,
quit.cc, unwind-prot.h, url-transfer.cc, main.in.cc, mkoctfile.in.cc,
and shared-fcns.h.
(grafted from aef11bb4e6d1f303ad9de5688fcb7244ef48867e)
author | John W. Eaton <jwe@octave.org> |
---|---|
date | Wed, 28 Apr 2021 22:57:42 -0400 |
parents | 0a5b15007766 |
children | 32f4357ac8d9 |
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//////////////////////////////////////////////////////////////////////// // // Copyright (C) 2008-2021 The Octave Project Developers // // See the file COPYRIGHT.md in the top-level directory of this // distribution or <https://octave.org/copyright/>. // // 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 // <https://www.gnu.org/licenses/>. // //////////////////////////////////////////////////////////////////////// #if ! defined (octave_PermMatrix_h) #define octave_PermMatrix_h 1 #include "octave-config.h" #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) = default; PermMatrix (const PermMatrix& m) = default; PermMatrix& operator = (const PermMatrix& m) = default; ~PermMatrix (void) = default; PermMatrix (octave_idx_type n); PermMatrix (const Array<octave_idx_type>& p, bool colp, bool check = true); 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_idx_type numel (void) const { return dim1 () * dim2 (); } std::size_t byte_size (void) const { return Array<octave_idx_type>::byte_size (); } dim_vector dims (void) const { return dim_vector (dim1 (), dim2 ()); } bool isempty (void) const { return numel () == 0; } int ndims (void) const { return 2; } 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 { return elem (i, j); } // 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