Mercurial > octave
view liboctave/array/CRowVector.cc @ 23807:336f89b6208b
Use character literals 'c' rather than string literals "c" when possible.
Better performance when string constructor isn't required.
* Figure.cc, __init_qt__.cc, files-dock-widget.cc, file-editor-tab.cc,
file-editor.cc, octave-qscintilla.cc, main-window.cc, octave-dock-widget.cc,
octave-qt-link.cc, parser.cc, webinfo.cc, resource-manager.cc,
settings-dialog.cc, workspace-view.cc, __magick_read__.cc, balance.cc,
debug.cc, dynamic-ld.cc, ft-text-renderer.cc, gl-render.cc, gl2ps-print.cc,
graphics.cc, hook-fcn.h, input.cc, load-path.cc, load-save.cc, ls-hdf5.cc,
oct-hist.cc, oct-stream.cc, pager.cc, pr-output.cc, qz.cc, symtab.cc, symtab.h,
tril.cc, __delaunayn__.cc, __init_fltk__.cc, __voronoi__.cc, audioread.cc,
ccolamd.cc, colamd.cc, convhulln.cc, ov-base-int.cc, ov-base-mat.cc,
ov-base-scalar.cc, ov-base.cc, ov-bool-mat.cc, ov-cell.cc, ov-class.cc,
ov-classdef.cc, ov-colon.cc, ov-complex.cc, ov-cx-mat.cc, ov-fcn-handle.cc,
ov-fcn-inline.cc, ov-fcn.h, ov-flt-cx-mat.cc, ov-flt-re-mat.cc, ov-java.cc,
ov-oncleanup.cc, ov-range.cc, ov-re-mat.cc, ov-re-sparse.cc, ov-str-mat.cc,
ov-struct.cc, ov-usr-fcn.cc, ov.cc, octave.cc, bp-table.cc, jit-ir.cc,
jit-ir.h, jit-typeinfo.cc, pt-funcall.cc, pt-idx.cc, pt-pr-code.cc, pt.h,
Array.cc, CDiagMatrix.cc, CMatrix.cc, CNDArray.cc, CRowVector.cc, CSparse.cc,
Range.cc, boolSparse.cc, dDiagMatrix.cc, dMatrix.cc, dNDArray.cc,
dRowVector.cc, dSparse.cc, fCDiagMatrix.cc, fCMatrix.cc, fCNDArray.cc,
fCRowVector.cc, fDiagMatrix.cc, fMatrix.cc, fNDArray.cc, fRowVector.cc,
idx-vector.cc, intNDArray.cc, CollocWt.cc, DASPK.cc, DASRT.cc, DASSL.cc,
LSODE.cc, oct-time.cc, cmd-hist.cc, kpse.cc, lo-array-errwarn.cc, lo-regexp.cc,
lo-utils.cc, str-vec.cc, url-transfer.cc, main-cli.cc, main-gui.cc,
mkoctfile.in.cc:
Replace 1-character string literals "c" with the character literal 'c'.
author | Rik <rik@octave.org> |
---|---|
date | Fri, 28 Jul 2017 15:40:00 -0700 |
parents | b6498c088fca |
children | 194eb4bd202b |
line wrap: on
line source
/* Copyright (C) 1994-2017 John W. Eaton 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 (HAVE_CONFIG_H) # include "config.h" #endif #include <iostream> #include "Array-util.h" #include "functor.h" #include "lo-blas-proto.h" #include "lo-error.h" #include "mx-base.h" #include "mx-inlines.cc" #include "oct-cmplx.h" // Complex Row Vector class bool ComplexRowVector::operator == (const ComplexRowVector& a) const { octave_idx_type len = numel (); if (len != a.numel ()) return 0; return mx_inline_equal (len, data (), a.data ()); } bool ComplexRowVector::operator != (const ComplexRowVector& a) const { return !(*this == a); } // destructive insert/delete/reorder operations ComplexRowVector& ComplexRowVector::insert (const RowVector& a, octave_idx_type c) { octave_idx_type a_len = a.numel (); if (c < 0 || c + a_len > numel ()) (*current_liboctave_error_handler) ("range error for insert"); if (a_len > 0) { make_unique (); for (octave_idx_type i = 0; i < a_len; i++) xelem (c+i) = a.elem (i); } return *this; } ComplexRowVector& ComplexRowVector::insert (const ComplexRowVector& a, octave_idx_type c) { octave_idx_type a_len = a.numel (); if (c < 0 || c + a_len > numel ()) (*current_liboctave_error_handler) ("range error for insert"); if (a_len > 0) { make_unique (); for (octave_idx_type i = 0; i < a_len; i++) xelem (c+i) = a.elem (i); } return *this; } ComplexRowVector& ComplexRowVector::fill (double val) { octave_idx_type len = numel (); if (len > 0) { make_unique (); for (octave_idx_type i = 0; i < len; i++) xelem (i) = val; } return *this; } ComplexRowVector& ComplexRowVector::fill (const Complex& val) { octave_idx_type len = numel (); if (len > 0) { make_unique (); for (octave_idx_type i = 0; i < len; i++) xelem (i) = val; } return *this; } ComplexRowVector& ComplexRowVector::fill (double val, octave_idx_type c1, octave_idx_type c2) { octave_idx_type len = numel (); if (c1 < 0 || c2 < 0 || c1 >= len || c2 >= len) (*current_liboctave_error_handler) ("range error for fill"); if (c1 > c2) { std::swap (c1, c2); } if (c2 >= c1) { make_unique (); for (octave_idx_type i = c1; i <= c2; i++) xelem (i) = val; } return *this; } ComplexRowVector& ComplexRowVector::fill (const Complex& val, octave_idx_type c1, octave_idx_type c2) { octave_idx_type len = numel (); if (c1 < 0 || c2 < 0 || c1 >= len || c2 >= len) (*current_liboctave_error_handler) ("range error for fill"); if (c1 > c2) { std::swap (c1, c2); } if (c2 >= c1) { make_unique (); for (octave_idx_type i = c1; i <= c2; i++) xelem (i) = val; } return *this; } ComplexRowVector ComplexRowVector::append (const RowVector& a) const { octave_idx_type len = numel (); octave_idx_type nc_insert = len; ComplexRowVector retval (len + a.numel ()); retval.insert (*this, 0); retval.insert (a, nc_insert); return retval; } ComplexRowVector ComplexRowVector::append (const ComplexRowVector& a) const { octave_idx_type len = numel (); octave_idx_type nc_insert = len; ComplexRowVector retval (len + a.numel ()); retval.insert (*this, 0); retval.insert (a, nc_insert); return retval; } ComplexColumnVector ComplexRowVector::hermitian (void) const { return MArray<Complex>::hermitian (std::conj); } ComplexColumnVector ComplexRowVector::transpose (void) const { return MArray<Complex>::transpose (); } ComplexRowVector conj (const ComplexRowVector& a) { return do_mx_unary_map<Complex, Complex, std::conj<double>> (a); } // resize is the destructive equivalent for this one ComplexRowVector ComplexRowVector::extract (octave_idx_type c1, octave_idx_type c2) const { if (c1 > c2) { std::swap (c1, c2); } octave_idx_type new_c = c2 - c1 + 1; ComplexRowVector result (new_c); for (octave_idx_type i = 0; i < new_c; i++) result.elem (i) = elem (c1+i); return result; } ComplexRowVector ComplexRowVector::extract_n (octave_idx_type r1, octave_idx_type n) const { ComplexRowVector result (n); for (octave_idx_type i = 0; i < n; i++) result.elem (i) = elem (r1+i); return result; } // row vector by row vector -> row vector operations ComplexRowVector& ComplexRowVector::operator += (const RowVector& a) { octave_idx_type len = numel (); octave_idx_type a_len = a.numel (); if (len != a_len) octave::err_nonconformant ("operator +=", len, a_len); if (len == 0) return *this; Complex *d = fortran_vec (); // Ensures only one reference to my privates! mx_inline_add2 (len, d, a.data ()); return *this; } ComplexRowVector& ComplexRowVector::operator -= (const RowVector& a) { octave_idx_type len = numel (); octave_idx_type a_len = a.numel (); if (len != a_len) octave::err_nonconformant ("operator -=", len, a_len); if (len == 0) return *this; Complex *d = fortran_vec (); // Ensures only one reference to my privates! mx_inline_sub2 (len, d, a.data ()); return *this; } // row vector by matrix -> row vector ComplexRowVector operator * (const ComplexRowVector& v, const ComplexMatrix& a) { ComplexRowVector retval; F77_INT len = octave::to_f77_int (v.numel ()); F77_INT a_nr = octave::to_f77_int (a.rows ()); F77_INT a_nc = octave::to_f77_int (a.cols ()); if (a_nr != len) octave::err_nonconformant ("operator *", 1, len, a_nr, a_nc); if (len == 0) retval.resize (a_nc, 0.0); else { // Transpose A to form A'*x == (x'*A)' F77_INT ld = a_nr; retval.resize (a_nc); Complex *y = retval.fortran_vec (); F77_XFCN (zgemv, ZGEMV, (F77_CONST_CHAR_ARG2 ("T", 1), a_nr, a_nc, 1.0, F77_CONST_DBLE_CMPLX_ARG (a.data ()), ld, F77_CONST_DBLE_CMPLX_ARG (v.data ()), 1, 0.0, F77_DBLE_CMPLX_ARG (y), 1 F77_CHAR_ARG_LEN (1))); } return retval; } ComplexRowVector operator * (const RowVector& v, const ComplexMatrix& a) { ComplexRowVector tmp (v); return tmp * a; } // other operations Complex ComplexRowVector::min (void) const { octave_idx_type len = numel (); if (len == 0) return Complex (0.0); Complex res = elem (0); double absres = std::abs (res); for (octave_idx_type i = 1; i < len; i++) if (std::abs (elem (i)) < absres) { res = elem (i); absres = std::abs (res); } return res; } Complex ComplexRowVector::max (void) const { octave_idx_type len = numel (); if (len == 0) return Complex (0.0); Complex res = elem (0); double absres = std::abs (res); for (octave_idx_type i = 1; i < len; i++) if (std::abs (elem (i)) > absres) { res = elem (i); absres = std::abs (res); } return res; } // i/o std::ostream& operator << (std::ostream& os, const ComplexRowVector& a) { // int field_width = os.precision () + 7; for (octave_idx_type i = 0; i < a.numel (); i++) os << ' ' /* setw (field_width) */ << a.elem (i); return os; } std::istream& operator >> (std::istream& is, ComplexRowVector& a) { octave_idx_type len = a.numel (); if (len > 0) { Complex tmp; for (octave_idx_type i = 0; i < len; i++) { is >> tmp; if (is) a.elem (i) = tmp; else break; } } return is; } // row vector by column vector -> scalar // row vector by column vector -> scalar Complex operator * (const ComplexRowVector& v, const ColumnVector& a) { ComplexColumnVector tmp (a); return v * tmp; } Complex operator * (const ComplexRowVector& v, const ComplexColumnVector& a) { Complex retval (0.0, 0.0); F77_INT len = octave::to_f77_int (v.numel ()); F77_INT a_len = octave::to_f77_int (a.numel ()); if (len != a_len) octave::err_nonconformant ("operator *", len, a_len); if (len != 0) F77_FUNC (xzdotu, XZDOTU) (len, F77_CONST_DBLE_CMPLX_ARG (v.data ()), 1, F77_CONST_DBLE_CMPLX_ARG (a.data ()), 1, F77_DBLE_CMPLX_ARG (&retval)); return retval; } // other operations ComplexRowVector linspace (const Complex& x1, const Complex& x2, octave_idx_type n) { NoAlias<ComplexRowVector> retval; if (n < 1) return retval; else retval.clear (n); retval(0) = x1; Complex delta = (x2 - x1) / (n - 1.0); for (octave_idx_type i = 1; i < n-1; i++) retval(i) = x1 + static_cast<double> (i)*delta; retval(n-1) = x2; return retval; }