Mercurial > octave
view libinterp/octave-value/ov-perm.cc @ 31605:e88a07dec498 stable
maint: Use macros to begin/end C++ namespaces.
* oct-conf-post-public.in.h: Define two macros (OCTAVE_BEGIN_NAMESPACE,
OCTAVE_END_NAMESPACE) that can be used to start/end a namespace.
* mk-opts.pl, build-env.h, build-env.in.cc, __betainc__.cc, __contourc__.cc,
__dsearchn__.cc, __eigs__.cc, __expint__.cc, __ftp__.cc, __gammainc__.cc,
__ichol__.cc, __ilu__.cc, __isprimelarge__.cc, __lin_interpn__.cc,
__magick_read__.cc, __pchip_deriv__.cc, __qp__.cc, amd.cc, auto-shlib.cc,
auto-shlib.h, balance.cc, base-text-renderer.cc, base-text-renderer.h,
besselj.cc, bitfcns.cc, bsxfun.cc, c-file-ptr-stream.cc, c-file-ptr-stream.h,
call-stack.cc, call-stack.h, ccolamd.cc, cellfun.cc, chol.cc, colamd.cc,
colloc.cc, conv2.cc, daspk.cc, dasrt.cc, dassl.cc, data.cc, data.h, debug.cc,
defaults.cc, defaults.h, defun-int.h, defun.cc, det.cc, dirfns.cc, display.cc,
display.h, dlmread.cc, dmperm.cc, dot.cc, dynamic-ld.cc, dynamic-ld.h, eig.cc,
ellipj.cc, environment.cc, environment.h, error.cc, error.h, errwarn.h,
event-manager.cc, event-manager.h, event-queue.cc, event-queue.h, fcn-info.cc,
fcn-info.h, fft.cc, fft2.cc, fftn.cc, file-io.cc, filter.cc, find.cc,
ft-text-renderer.cc, ft-text-renderer.h, gcd.cc, getgrent.cc, getpwent.cc,
getrusage.cc, givens.cc, gl-render.cc, gl-render.h, gl2ps-print.cc,
gl2ps-print.h, graphics-toolkit.cc, graphics-toolkit.h, graphics.cc,
graphics.in.h, gsvd.cc, gtk-manager.cc, gtk-manager.h, hash.cc, help.cc,
help.h, hess.cc, hex2num.cc, hook-fcn.cc, hook-fcn.h, input.cc, input.h,
interpreter-private.cc, interpreter-private.h, interpreter.cc, interpreter.h,
inv.cc, jsondecode.cc, jsonencode.cc, kron.cc, latex-text-renderer.cc,
latex-text-renderer.h, load-path.cc, load-path.h, load-save.cc, load-save.h,
lookup.cc, ls-ascii-helper.cc, ls-ascii-helper.h, ls-oct-text.cc, ls-utils.cc,
ls-utils.h, lsode.cc, lu.cc, mappers.cc, matrix_type.cc, max.cc, mex-private.h,
mex.cc, mgorth.cc, nproc.cc, oct-fstrm.cc, oct-fstrm.h, oct-hdf5-types.cc,
oct-hdf5-types.h, oct-hist.cc, oct-hist.h, oct-iostrm.cc, oct-iostrm.h,
oct-opengl.h, oct-prcstrm.cc, oct-prcstrm.h, oct-procbuf.cc, oct-procbuf.h,
oct-process.cc, oct-process.h, oct-stdstrm.h, oct-stream.cc, oct-stream.h,
oct-strstrm.cc, oct-strstrm.h, oct-tex-lexer.in.ll, oct-tex-parser.yy,
ordqz.cc, ordschur.cc, pager.cc, pager.h, pinv.cc, pow2.cc, pr-flt-fmt.cc,
pr-output.cc, procstream.cc, procstream.h, psi.cc, qr.cc, quad.cc, quadcc.cc,
qz.cc, rand.cc, rcond.cc, regexp.cc, schur.cc, settings.cc, settings.h,
sighandlers.cc, sighandlers.h, sparse-xdiv.cc, sparse-xdiv.h, sparse-xpow.cc,
sparse-xpow.h, sparse.cc, spparms.cc, sqrtm.cc, stack-frame.cc, stack-frame.h,
stream-euler.cc, strfind.cc, strfns.cc, sub2ind.cc, svd.cc, sylvester.cc,
symbfact.cc, syminfo.cc, syminfo.h, symrcm.cc, symrec.cc, symrec.h,
symscope.cc, symscope.h, symtab.cc, symtab.h, syscalls.cc, sysdep.cc, sysdep.h,
text-engine.cc, text-engine.h, text-renderer.cc, text-renderer.h, time.cc,
toplev.cc, tril.cc, tsearch.cc, typecast.cc, url-handle-manager.cc,
url-handle-manager.h, urlwrite.cc, utils.cc, utils.h, variables.cc,
variables.h, xdiv.cc, xdiv.h, xnorm.cc, xnorm.h, xpow.cc, xpow.h,
__delaunayn__.cc, __fltk_uigetfile__.cc, __glpk__.cc, __init_fltk__.cc,
__init_gnuplot__.cc, __ode15__.cc, __voronoi__.cc, audiodevinfo.cc,
audioread.cc, convhulln.cc, fftw.cc, gzip.cc, mk-build-env-features.sh,
mk-builtins.pl, cdef-class.cc, cdef-class.h, cdef-fwd.h, cdef-manager.cc,
cdef-manager.h, cdef-method.cc, cdef-method.h, cdef-object.cc, cdef-object.h,
cdef-package.cc, cdef-package.h, cdef-property.cc, cdef-property.h,
cdef-utils.cc, cdef-utils.h, ov-base.cc, ov-base.h, ov-bool-mat.cc,
ov-builtin.h, ov-cell.cc, ov-class.cc, ov-class.h, ov-classdef.cc,
ov-classdef.h, ov-complex.cc, ov-fcn-handle.cc, ov-fcn-handle.h, ov-fcn.h,
ov-java.cc, ov-java.h, ov-mex-fcn.h, ov-null-mat.cc, ov-oncleanup.cc,
ov-struct.cc, ov-typeinfo.cc, ov-typeinfo.h, ov-usr-fcn.cc, ov-usr-fcn.h,
ov.cc, ov.h, octave.cc, octave.h, mk-ops.sh, op-b-b.cc, op-b-bm.cc,
op-b-sbm.cc, op-bm-b.cc, op-bm-bm.cc, op-bm-sbm.cc, op-cdm-cdm.cc, op-cell.cc,
op-chm.cc, op-class.cc, op-cm-cm.cc, op-cm-cs.cc, op-cm-m.cc, op-cm-s.cc,
op-cm-scm.cc, op-cm-sm.cc, op-cs-cm.cc, op-cs-cs.cc, op-cs-m.cc, op-cs-s.cc,
op-cs-scm.cc, op-cs-sm.cc, op-dm-dm.cc, op-dm-scm.cc, op-dm-sm.cc,
op-dm-template.cc, op-dms-template.cc, op-fcdm-fcdm.cc, op-fcm-fcm.cc,
op-fcm-fcs.cc, op-fcm-fm.cc, op-fcm-fs.cc, op-fcn.cc, op-fcs-fcm.cc,
op-fcs-fcs.cc, op-fcs-fm.cc, op-fcs-fs.cc, op-fdm-fdm.cc, op-fm-fcm.cc,
op-fm-fcs.cc, op-fm-fm.cc, op-fm-fs.cc, op-fs-fcm.cc, op-fs-fcs.cc,
op-fs-fm.cc, op-fs-fs.cc, op-i16-i16.cc, op-i32-i32.cc, op-i64-i64.cc,
op-i8-i8.cc, op-int-concat.cc, op-m-cm.cc, op-m-cs.cc, op-m-m.cc, op-m-s.cc,
op-m-scm.cc, op-m-sm.cc, op-mi.cc, op-pm-pm.cc, op-pm-scm.cc, op-pm-sm.cc,
op-pm-template.cc, op-range.cc, op-s-cm.cc, op-s-cs.cc, op-s-m.cc, op-s-s.cc,
op-s-scm.cc, op-s-sm.cc, op-sbm-b.cc, op-sbm-bm.cc, op-sbm-sbm.cc,
op-scm-cm.cc, op-scm-cs.cc, op-scm-m.cc, op-scm-s.cc, op-scm-scm.cc,
op-scm-sm.cc, op-sm-cm.cc, op-sm-cs.cc, op-sm-m.cc, op-sm-s.cc, op-sm-scm.cc,
op-sm-sm.cc, op-str-m.cc, op-str-s.cc, op-str-str.cc, op-struct.cc,
op-ui16-ui16.cc, op-ui32-ui32.cc, op-ui64-ui64.cc, op-ui8-ui8.cc, ops.h,
anon-fcn-validator.cc, anon-fcn-validator.h, bp-table.cc, bp-table.h,
comment-list.cc, comment-list.h, filepos.h, lex.h, lex.ll, oct-lvalue.cc,
oct-lvalue.h, oct-parse.yy, parse.h, profiler.cc, profiler.h,
pt-anon-scopes.cc, pt-anon-scopes.h, pt-arg-list.cc, pt-arg-list.h,
pt-args-block.cc, pt-args-block.h, pt-array-list.cc, pt-array-list.h,
pt-assign.cc, pt-assign.h, pt-binop.cc, pt-binop.h, pt-bp.cc, pt-bp.h,
pt-cbinop.cc, pt-cbinop.h, pt-cell.cc, pt-cell.h, pt-check.cc, pt-check.h,
pt-classdef.cc, pt-classdef.h, pt-cmd.h, pt-colon.cc, pt-colon.h, pt-const.cc,
pt-const.h, pt-decl.cc, pt-decl.h, pt-eval.cc, pt-eval.h, pt-except.cc,
pt-except.h, pt-exp.cc, pt-exp.h, pt-fcn-handle.cc, pt-fcn-handle.h, pt-id.cc,
pt-id.h, pt-idx.cc, pt-idx.h, pt-jump.h, pt-loop.cc, pt-loop.h, pt-mat.cc,
pt-mat.h, pt-misc.cc, pt-misc.h, pt-pr-code.cc, pt-pr-code.h, pt-select.cc,
pt-select.h, pt-spmd.cc, pt-spmd.h, pt-stmt.cc, pt-stmt.h, pt-tm-const.cc,
pt-tm-const.h, pt-unop.cc, pt-unop.h, pt-vm-eval.cc, pt-walk.cc, pt-walk.h,
pt.cc, pt.h, token.cc, token.h, Range.cc, Range.h, idx-vector.cc, idx-vector.h,
range-fwd.h, CollocWt.cc, CollocWt.h, aepbalance.cc, aepbalance.h, chol.cc,
chol.h, gepbalance.cc, gepbalance.h, gsvd.cc, gsvd.h, hess.cc, hess.h,
lo-mappers.cc, lo-mappers.h, lo-specfun.cc, lo-specfun.h, lu.cc, lu.h,
oct-convn.cc, oct-convn.h, oct-fftw.cc, oct-fftw.h, oct-norm.cc, oct-norm.h,
oct-rand.cc, oct-rand.h, oct-spparms.cc, oct-spparms.h, qr.cc, qr.h, qrp.cc,
qrp.h, randgamma.cc, randgamma.h, randmtzig.cc, randmtzig.h, randpoisson.cc,
randpoisson.h, schur.cc, schur.h, sparse-chol.cc, sparse-chol.h, sparse-lu.cc,
sparse-lu.h, sparse-qr.cc, sparse-qr.h, svd.cc, svd.h, child-list.cc,
child-list.h, dir-ops.cc, dir-ops.h, file-ops.cc, file-ops.h, file-stat.cc,
file-stat.h, lo-sysdep.cc, lo-sysdep.h, lo-sysinfo.cc, lo-sysinfo.h,
mach-info.cc, mach-info.h, oct-env.cc, oct-env.h, oct-group.cc, oct-group.h,
oct-password.cc, oct-password.h, oct-syscalls.cc, oct-syscalls.h, oct-time.cc,
oct-time.h, oct-uname.cc, oct-uname.h, action-container.cc, action-container.h,
base-list.h, cmd-edit.cc, cmd-edit.h, cmd-hist.cc, cmd-hist.h, f77-fcn.h,
file-info.cc, file-info.h, lo-array-errwarn.cc, lo-array-errwarn.h, lo-hash.cc,
lo-hash.h, lo-ieee.h, lo-regexp.cc, lo-regexp.h, lo-utils.cc, lo-utils.h,
oct-base64.cc, oct-base64.h, oct-glob.cc, oct-glob.h, oct-inttypes.h,
oct-mutex.cc, oct-mutex.h, oct-refcount.h, oct-shlib.cc, oct-shlib.h,
oct-sparse.cc, oct-sparse.h, oct-string.h, octave-preserve-stream-state.h,
pathsearch.cc, pathsearch.h, quit.cc, quit.h, unwind-prot.cc, unwind-prot.h,
url-transfer.cc, url-transfer.h : Use new macros to begin/end C++ namespaces.
author | Rik <rik@octave.org> |
---|---|
date | Thu, 01 Dec 2022 14:23:45 -0800 |
parents | 796f54d4ddbf |
children | aac27ad79be6 |
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//////////////////////////////////////////////////////////////////////// // // Copyright (C) 2008-2022 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 (HAVE_CONFIG_H) # include "config.h" #endif #include "byte-swap.h" #include "dim-vector.h" #include "mxarray.h" #include "ov-perm.h" #include "ov-re-mat.h" #include "ov-scalar.h" #include "error.h" #include "errwarn.h" #include "ops.h" #include "pr-output.h" #include "ls-oct-text.h" octave_value octave_perm_matrix::subsref (const std::string& type, const std::list<octave_value_list>& idx) { octave_value retval; switch (type[0]) { case '(': retval = do_index_op (idx.front ()); break; case '{': case '.': { std::string nm = type_name (); error ("%s cannot be indexed with %c", nm.c_str (), type[0]); } break; default: panic_impossible (); } return retval.next_subsref (type, idx); } octave_value octave_perm_matrix::do_index_op (const octave_value_list& idx, bool resize_ok) { octave_value retval; octave_idx_type nidx = idx.length (); octave::idx_vector idx0, idx1; if (nidx == 2) { int k = 0; // index we're processing when index_vector throws try { idx0 = idx(0).index_vector (); k = 1; idx1 = idx(1).index_vector (); } catch (octave::index_exception& ie) { // Rethrow to allow more info to be reported later. ie.set_pos_if_unset (2, k+1); throw; } } // This hack is to allow constructing permutation matrices using // eye(n)(p,:), eye(n)(:,q) && eye(n)(p,q) where p & q are permutation // vectors. // Note that, for better consistency, eye(n)(:,:) still converts to a full // matrix. if (nidx == 2) { bool left = idx0.is_permutation (m_matrix.rows ()); bool right = idx1.is_permutation (m_matrix.cols ()); if (left && right) { if (idx0.is_colon ()) left = false; if (idx1.is_colon ()) right = false; if (left || right) { PermMatrix p = m_matrix; if (left) p = PermMatrix (idx0, false) * p; if (right) p = p * PermMatrix (idx1, true); retval = p; } else { retval = this; this->count++; } } } if (! retval.is_defined ()) { if (nidx == 2 && ! resize_ok && idx0.is_scalar () && idx1.is_scalar ()) retval = m_matrix.checkelem (idx0(0), idx1(0)); else retval = to_dense ().index_op (idx, resize_ok); } return retval; } // Return true if this matrix has all true elements (non-zero, not NaN/NA). // A permutation cannot have NaN/NA. bool octave_perm_matrix::is_true (void) const { if (dims ().numel () > 1) { warn_array_as_logical (dims ()); return false; // > 1x1 permutation always has zeros, and no NaN. } else return dims ().numel (); // 1x1 is [1] == true, 0x0 == false. } double octave_perm_matrix::double_value (bool) const { if (isempty ()) err_invalid_conversion (type_name (), "real scalar"); warn_implicit_conversion ("Octave:array-to-scalar", type_name (), "real scalar"); return m_matrix(0, 0); } float octave_perm_matrix::float_value (bool) const { if (isempty ()) err_invalid_conversion (type_name (), "real scalar"); warn_implicit_conversion ("Octave:array-to-scalar", type_name (), "real scalar"); return m_matrix(0, 0); } Complex octave_perm_matrix::complex_value (bool) const { if (rows () == 0 || columns () == 0) err_invalid_conversion (type_name (), "complex scalar"); warn_implicit_conversion ("Octave:array-to-scalar", type_name (), "complex scalar"); return Complex (m_matrix(0, 0), 0); } FloatComplex octave_perm_matrix::float_complex_value (bool) const { float tmp = lo_ieee_float_nan_value (); FloatComplex retval (tmp, tmp); if (rows () == 0 || columns () == 0) err_invalid_conversion (type_name (), "complex scalar"); warn_implicit_conversion ("Octave:array-to-scalar", type_name (), "complex scalar"); retval = m_matrix(0, 0); return retval; } #define FORWARD_MATRIX_VALUE(TYPE, PREFIX) \ TYPE \ octave_perm_matrix::PREFIX ## _value (bool frc_str_conv) const \ { \ return to_dense ().PREFIX ## _value (frc_str_conv); \ } SparseMatrix octave_perm_matrix::sparse_matrix_value (bool) const { return SparseMatrix (m_matrix); } SparseBoolMatrix octave_perm_matrix::sparse_bool_matrix_value (bool) const { return SparseBoolMatrix (m_matrix); } SparseComplexMatrix octave_perm_matrix::sparse_complex_matrix_value (bool) const { return SparseComplexMatrix (sparse_matrix_value ()); } FORWARD_MATRIX_VALUE (Matrix, matrix) FORWARD_MATRIX_VALUE (FloatMatrix, float_matrix) FORWARD_MATRIX_VALUE (ComplexMatrix, complex_matrix) FORWARD_MATRIX_VALUE (FloatComplexMatrix, float_complex_matrix) FORWARD_MATRIX_VALUE (NDArray, array) FORWARD_MATRIX_VALUE (FloatNDArray, float_array) FORWARD_MATRIX_VALUE (ComplexNDArray, complex_array) FORWARD_MATRIX_VALUE (FloatComplexNDArray, float_complex_array) FORWARD_MATRIX_VALUE (boolNDArray, bool_array) FORWARD_MATRIX_VALUE (charNDArray, char_array) octave::idx_vector octave_perm_matrix::index_vector (bool require_integers) const { return to_dense ().index_vector (require_integers); } octave_value octave_perm_matrix::convert_to_str_internal (bool pad, bool force, char type) const { return to_dense ().convert_to_str_internal (pad, force, type); } octave_value octave_perm_matrix::as_double (void) const { return m_matrix; } octave_value octave_perm_matrix::as_single (void) const { return float_array_value (); } octave_value octave_perm_matrix::as_int8 (void) const { return int8_array_value (); } octave_value octave_perm_matrix::as_int16 (void) const { return int16_array_value (); } octave_value octave_perm_matrix::as_int32 (void) const { return int32_array_value (); } octave_value octave_perm_matrix::as_int64 (void) const { return int64_array_value (); } octave_value octave_perm_matrix::as_uint8 (void) const { return uint8_array_value (); } octave_value octave_perm_matrix::as_uint16 (void) const { return uint16_array_value (); } octave_value octave_perm_matrix::as_uint32 (void) const { return uint32_array_value (); } octave_value octave_perm_matrix::as_uint64 (void) const { return uint64_array_value (); } float_display_format octave_perm_matrix::get_edit_display_format (void) const { return float_display_format (float_format (1, 0, 0)); } std::string octave_perm_matrix::edit_display (const float_display_format& fmt, octave_idx_type i, octave_idx_type j) const { std::ostringstream buf; octave_print_internal (buf, fmt, octave_int<octave_idx_type> (m_matrix(i, j))); return buf.str (); } bool octave_perm_matrix::save_ascii (std::ostream& os) { os << "# size: " << m_matrix.rows () << "\n"; os << "# orient: c\n"; Array<octave_idx_type> pvec = m_matrix.col_perm_vec (); octave_idx_type n = pvec.numel (); ColumnVector tmp (n); for (octave_idx_type i = 0; i < n; i++) tmp(i) = pvec(i) + 1; os << tmp; return true; } bool octave_perm_matrix::load_ascii (std::istream& is) { octave_idx_type n; char orient; if (! extract_keyword (is, "size", n, true) || ! extract_keyword (is, "orient", orient, true)) error ("load: failed to extract size & orientation"); bool colp = orient == 'c'; ColumnVector tmp (n); is >> tmp; if (! is) error ("load: failed to load permutation matrix constant"); Array<octave_idx_type> pvec (dim_vector (n, 1)); for (octave_idx_type i = 0; i < n; i++) pvec(i) = tmp(i) - 1; m_matrix = PermMatrix (pvec, colp); // Invalidate cache. Probably not necessary, but safe. m_dense_cache = octave_value (); return true; } bool octave_perm_matrix::save_binary (std::ostream& os, bool) { int32_t sz = m_matrix.rows (); bool colp = true; os.write (reinterpret_cast<char *> (&sz), 4); os.write (reinterpret_cast<char *> (&colp), 1); const Array<octave_idx_type>& col_perm = m_matrix.col_perm_vec (); os.write (reinterpret_cast<const char *> (col_perm.data ()), col_perm.byte_size ()); return true; } bool octave_perm_matrix::load_binary (std::istream& is, bool swap, octave::mach_info::float_format) { int32_t sz; bool colp; if (! (is.read (reinterpret_cast<char *> (&sz), 4) && is.read (reinterpret_cast<char *> (&colp), 1))) return false; MArray<octave_idx_type> m (dim_vector (sz, 1)); if (! is.read (reinterpret_cast<char *> (m.fortran_vec ()), m.byte_size ())) return false; if (swap) { int nel = m.numel (); for (int i = 0; i < nel; i++) switch (sizeof (octave_idx_type)) { case 8: swap_bytes<8> (&m(i)); break; case 4: swap_bytes<4> (&m(i)); break; case 2: swap_bytes<2> (&m(i)); break; case 1: default: break; } } m_matrix = PermMatrix (m, colp); return true; } void octave_perm_matrix::print_raw (std::ostream& os, bool pr_as_read_syntax) const { return octave_print_internal (os, m_matrix, pr_as_read_syntax, current_print_indent_level ()); } mxArray * octave_perm_matrix::as_mxArray (bool interleaved) const { return to_dense ().as_mxArray (interleaved); } bool octave_perm_matrix::print_as_scalar (void) const { dim_vector dv = dims (); return (dv.all_ones () || dv.any_zero ()); } void octave_perm_matrix::print (std::ostream& os, bool pr_as_read_syntax) { print_raw (os, pr_as_read_syntax); newline (os); } int octave_perm_matrix::write (octave::stream& os, int block_size, oct_data_conv::data_type output_type, int skip, octave::mach_info::float_format flt_fmt) const { return to_dense ().write (os, block_size, output_type, skip, flt_fmt); } void octave_perm_matrix::print_info (std::ostream& os, const std::string& prefix) const { m_matrix.print_info (os, prefix); } octave_value octave_perm_matrix::to_dense (void) const { if (! m_dense_cache.is_defined ()) m_dense_cache = Matrix (m_matrix); return m_dense_cache; } DEFINE_OV_TYPEID_FUNCTIONS_AND_DATA (octave_perm_matrix, "permutation matrix", "double"); static octave_base_value * default_numeric_conversion_function (const octave_base_value& a) { const octave_perm_matrix& v = dynamic_cast<const octave_perm_matrix&> (a); return new octave_matrix (v.matrix_value ()); } octave_base_value::type_conv_info octave_perm_matrix::numeric_conversion_function (void) const { return octave_base_value::type_conv_info (default_numeric_conversion_function, octave_matrix::static_type_id ()); } // FIXME: This is duplicated from octave_base_matrix<T>. Could // octave_perm_matrix be derived from octave_base_matrix<T>? void octave_perm_matrix::short_disp (std::ostream& os) const { if (m_matrix.isempty ()) os << "[]"; else if (m_matrix.ndims () == 2) { // FIXME: should this be configurable? octave_idx_type max_elts = 10; octave_idx_type elts = 0; octave_idx_type nel = m_matrix.numel (); octave_idx_type nr = m_matrix.rows (); octave_idx_type nc = m_matrix.columns (); os << '['; for (octave_idx_type i = 0; i < nr; i++) { for (octave_idx_type j = 0; j < nc; j++) { std::ostringstream buf; octave_int<octave_idx_type> tval (m_matrix(i, j)); octave_print_internal (buf, tval); std::string tmp = buf.str (); std::size_t pos = tmp.find_first_not_of (' '); if (pos != std::string::npos) os << tmp.substr (pos); else if (! tmp.empty ()) os << tmp[0]; if (++elts >= max_elts) goto done; if (j < nc - 1) os << ", "; } if (i < nr - 1 && elts < max_elts) os << "; "; } done: if (nel <= max_elts) os << ']'; } else os << "..."; } octave_base_value * octave_perm_matrix::try_narrowing_conversion (void) { octave_base_value *retval = nullptr; if (m_matrix.numel () == 1) retval = new octave_scalar (m_matrix (0, 0)); return retval; } octave_value octave_perm_matrix::fast_elem_extract (octave_idx_type n) const { if (n < m_matrix.numel ()) { octave_idx_type nr = m_matrix.rows (); octave_idx_type r = n % nr; octave_idx_type c = n / nr; return octave_value (m_matrix.elem (r, c)); } else return octave_value (); }