Mercurial > octave
view liboctave/array/PermMatrix.cc @ 21102:dfcb9d74b253
Rename local gripe_XXX functions to err_XXX or warn_XXX.
* graphics.cc (err_set_invalid): Add OCTAVE_NORETURN attribute.
* graphisc.cc: Rename gripe_set_invalid to err_set_invalid.
* jit-typeinfo.cc (err_bad_result): Rename from gripe_bad_result.
* load-save.cc (err_file_open): Rename from gripe_file_open.
* ls-mat5.cc (warn_dim_too_large): Rename from gripe_dim_too_large.
* oct-stream.cc (err_invalid_file_id): Rename from gripe_invalid_file_id.
* txt-eng-ft.cc (warn_missing_glyph, warn_glyph_render): Rename from
gripe_missing_glyph, gripe_glyph_render.
* xpow.cc: Add FIXME about strange gripe_failed_diagonalization function.
* ov-base-int.cc, ov-bool-mat.cc, ov-bool-sparse.cc, ov-bool.cc, ov-cell.cc,
ov-class.cc, ov-complex.cc, ov-cx-mat.cc, ov-cx-sparse.cc, ov-fcn-handle.cc,
ov-fcn-inline.cc, ov-float.cc, ov-flt-complex.cc, ov-flt-cx-mat.cc,
ov-flt-re-mat.cc, ov-range.cc, ov-re-mat.cc, ov-re-sparse.cc, ov-scalar.cc,
ov-str-mat.cc, ov-struct.cc
(warn_load, warn_save):
ov-base.cc (warn_load, warn_save, err_indexed_assignment,
err_assign_conversion_failed, err_no_conversion): Rename from gripe_XXX
version.
* ov-base.h (warn_load, warn_save): Rename from gripe_load, gripe_save.
* ov-classdef.cc (err_method_access, err_property_access): Rename from
gripe_method_access, gripe_property_access.
* ov-classdef.h (err_invalid_object): Rename from gripe_invalid_object.
* ov-oncleanup.h (gripe_internal): Delete function. Place single calling
instance directly in code.
* ov.cc (err_binary_op, err_binary_op_conv, err_unary_op, err_unary_op_conv,
err_unary_op_conversion_failed): Add OCTAVE_NORETURN attribute. Rename from
gripe_XXX.
* ov.cc (err_cat_op, err_cat_op_conv, ): Rename from gripe_XXX.
* lex.h (warn_single_quote_string, warn_language_extension,
maybe_warn_language_extension_comment, warn_language_extension_continuation,
warn_language_extension_operator): Rename from gripe_XXX.
* lex.ll (warn_single_quote_string, warn_language_extension,
maybe_warn_language_extension_comment, warn_language_extension_continuation,
warn_language_extension_operator): Rename from gripe_XXX.
* pt-check.cc (errmsg): Rename from gripe.
* pt-check.h (errmsg): Add OCTAVE_NORETURN attribute. Rename from gripe.
* PermMatrix.cc (err_invalid_permutation): Add OCTAVE_NORETURN attribute.
Rename from gripe_invalid_permutation.
* idx-vector.cc (err_invalid_range): Add OCTAVE_NORETURN attribute.
Rename from gripe_invalid_range.
liboctave/numeric/lo-specfun.cc (err_betainc_nonconformant): Add
OCTAVE_NORETURN attribute. Rename from gripe_betainc_nonconformant.
* oct-group.cc (err_invalid): New static function.
* oct-group.h (gripe_invalid): Delete private function.
* oct-passwd.cc (err_invalid): New static function.
* oct-passwd.h (gripe_invalid): Delete private function.
* data-conv.cc (err_unrecognized_float_fmt): Add OCTAVE_NORETURN attribute.
Rename from gripe_unrecognized_float_fmt.
* lo-cutils.c (warn_missing_wait_macro): Rename from gripe_missing_wait_macro.
* unwind-prot.cc (err_unhandled_exception): Rename from gripe_exception.
* unwind-prot.h (err_unhandled_exception): Rename from gripe_exception.
author | Rik <rik@octave.org> |
---|---|
date | Mon, 18 Jan 2016 21:06:26 -0800 |
parents | e39e05d90788 |
children | 499b851fbfae |
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/* 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/>. */ #ifdef HAVE_CONFIG_H #include <config.h> #endif #include "PermMatrix.h" #include "idx-vector.h" #include "Array-util.h" #include "oct-locbuf.h" OCTAVE_NORETURN static void err_invalid_permutation (void) { (*current_liboctave_error_handler) ("PermMatrix: invalid permutation vector"); } void PermMatrix::setup (const Array<octave_idx_type>& p, bool colp, bool check) { if (check) { if (! idx_vector (p).is_permutation (p.numel ())) { err_invalid_permutation (); Array<octave_idx_type>::operator = (Array<octave_idx_type> ()); } } if (! colp) *this = this->transpose (); } PermMatrix::PermMatrix (const Array<octave_idx_type>& p) : Array<octave_idx_type> (p) { setup (p, false, true); } PermMatrix::PermMatrix (const Array<octave_idx_type>& p, bool colp, bool check) : Array<octave_idx_type> (p) { setup (p, colp, check); } void PermMatrix::setup (const idx_vector& idx, bool colp, octave_idx_type n) { octave_idx_type len = idx.length (n); if (! idx.is_permutation (len)) err_invalid_permutation (); Array<octave_idx_type> idxa (dim_vector (len, 1)); for (octave_idx_type i = 0; i < len; i++) idxa(i) = idx(i); Array<octave_idx_type>::operator = (idxa); if (! colp) *this = this->transpose (); } PermMatrix::PermMatrix (const idx_vector& idx) : Array<octave_idx_type> () { setup (idx, false, 0); } PermMatrix::PermMatrix (const idx_vector& idx, bool colp, octave_idx_type n) : Array<octave_idx_type> () { setup (idx, colp, n); } PermMatrix::PermMatrix (octave_idx_type n) : Array<octave_idx_type> (dim_vector (n, 1)) { for (octave_idx_type i = 0; i < n; i++) xelem (i) = i; } octave_idx_type PermMatrix::checkelem (octave_idx_type i, octave_idx_type j) const { octave_idx_type len = Array<octave_idx_type>::numel (); if (i < 0 || j < 0 || i > len || j > len) { (*current_liboctave_error_handler) ("index out of range"); return 0; } else return elem (i, j); } PermMatrix PermMatrix::transpose (void) const { octave_idx_type len = Array<octave_idx_type>::numel (); PermMatrix retval (len); for (octave_idx_type i = 0; i < len; ++i) retval.xelem (xelem (i)) = i; return retval; } PermMatrix PermMatrix::inverse (void) const { return transpose (); } octave_idx_type PermMatrix::determinant (void) const { // Determine the sign of a permutation in linear time. // Is this widely known? octave_idx_type len = perm_length (); const octave_idx_type *pa = data (); OCTAVE_LOCAL_BUFFER (octave_idx_type, p, len); OCTAVE_LOCAL_BUFFER (octave_idx_type, q, len); for (octave_idx_type i = 0; i < len; i++) { p[i] = pa[i]; q[p[i]] = i; } bool neg = false; for (octave_idx_type i = 0; i < len; i++) { octave_idx_type j = p[i]; octave_idx_type k = q[i]; if (j != i) { p[k] = p[i]; q[j] = q[i]; neg = ! neg; } } return neg ? -1 : 1; } PermMatrix PermMatrix::power(octave_idx_type m) const { if (m < 0) return inverse ().pos_power (-m); else if (m > 0) return pos_power (m); else return PermMatrix (rows ()); } PermMatrix PermMatrix::pos_power (octave_idx_type m) const { octave_idx_type n = rows (); const octave_idx_type *p = data (); Array<octave_idx_type> res_pvec (dim_vector (n, 1), -1); octave_idx_type *q = res_pvec.fortran_vec (); for (octave_idx_type ics = 0; ics < n; ics++) { if (q[ics] > 0) continue; // go forward m steps or until a cycle is found. octave_idx_type ic, j; for (j = 1, ic = p[ics]; j != m && ic != ics; j++, ic = p[ic]) ; if (ic == ics) { // reduce power. octave_idx_type mm = m % j; // go forward mm steps. for (j = 0, ic = ics; j != mm; j++, ic = p[ic]) ; } // now ic = p^m[ics]. Loop through the whole cycle. octave_idx_type jcs = ics; do { q[jcs] = ic; jcs = p[jcs]; ic = p[ic]; } while (jcs != ics); } return PermMatrix (res_pvec, true, false); } PermMatrix PermMatrix::eye (octave_idx_type n) { return PermMatrix (n); } PermMatrix operator *(const PermMatrix& a, const PermMatrix& b) { PermMatrix r; const Array<octave_idx_type> ia = a.col_perm_vec (); const Array<octave_idx_type> ib = b.col_perm_vec (); octave_idx_type n = a.columns (); if (n != b.rows ()) err_nonconformant ("operator *", n, n, b.rows (), b.rows ()); else r = PermMatrix (ia.index (idx_vector (ib)), true, false); return r; }