Mercurial > octave
view liboctave/array/Array-f.cc @ 21213:f7d1050b9b53
maint: Clean up various usages of #ifdef.
* randmtzig.c: Use #ifdef rather than just #if.
* EditControl.h : Use '#if ! defined' rather than '#ifndef' in
guard block to match Octave style.
* dialog.cc, settings-dialog.cc: Add FIXME notes about questionable use of #if
mechanism.
* file-editor-tab.cc, Array-b.cc, Array-ch.cc, Array-d.cc, Array-f.cc,
Array-i.cc, Array-s.cc, MatrixType.h, quit.h, lo-sysdep.cc, lo-cutils.c,
oct-alloc.h, oct-shlib.cc, sparse-sort.h: #define HAVE_XXX macros to 1, not
just empty but defined.
* octave-txt-lexer.h, octave-cmd.h, octave-preserve-stream-state.h, txt-eng.h,
zfstream.h, oct-conf-features.h, oct-conf.h: Use octave_ namespace prefix on
name of #define used to prevent multiple inclusion of headers.
* parser.h, webinfo.h, ov-oncleanup.h, op-int.h, display-available.h,
shared-fcns.h: Add #define guard to prevent multiple inclusion.
* quadcc.cc: use all capitals for #define MIN_CQUAD_HEAPSIZE.
* ov-intx.h: Add note that this file must not use guard #define.
* eigs-base.h, randmtzig.h: Write '! defined' rather than '!defined'.
* file-ops.cc, oct-sparse.h: Use parentheses around complex #if tests.
* oct-syscalls.cc, oct-base64.cc, statdefs.h: Indent #ifdef blocks correctly.
* oct-conf-post.in.h: Use "! defined". Define macros to 1, not just empty but
defined.
author | Rik <rik@octave.org> |
---|---|
date | Sat, 06 Feb 2016 18:22:32 -0800 |
parents | f7121e111991 |
children | 40de9f8f23a6 |
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/* Copyright (C) 1994-2015 John W. Eaton Copyright (C) 2009 VZLU Prague 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 // Instantiate Arrays of float values. #include "lo-mappers.h" #include "Array.h" #include "Array.cc" #include "oct-locbuf.h" #define INLINE_ASCENDING_SORT 1 #define INLINE_DESCENDING_SORT 1 #include "oct-sort.cc" template <> inline bool sort_isnan<float> (float x) { return xisnan (x); } static bool nan_ascending_compare (float x, float y) { return xisnan (y) ? ! xisnan (x) : x < y; } static bool nan_descending_compare (float x, float y) { return xisnan (x) ? ! xisnan (y) : x > y; } Array<float>::compare_fcn_type safe_comparator (sortmode mode, const Array<float>& a , bool allow_chk) { Array<float>::compare_fcn_type result = 0; if (allow_chk) { octave_idx_type k = 0; for (; k < a.numel () && ! xisnan (a(k)); k++) ; if (k == a.numel ()) { if (mode == ASCENDING) result = octave_sort<float>::ascending_compare; else if (mode == DESCENDING) result = octave_sort<float>::descending_compare; } } if (! result) { if (mode == ASCENDING) result = nan_ascending_compare; else if (mode == DESCENDING) result = nan_descending_compare; } return result; } // The default solution using NaN-safe comparator is OK, but almost twice as // slow than this code. template <> OCTAVE_API sortmode Array<float>::is_sorted (sortmode mode) const { octave_idx_type n = numel (); const float *el = data (); if (n <= 1) return mode ? mode : ASCENDING; if (! mode) { // Auto-detect mode. if (el[n-1] < el[0] || xisnan (el[0])) mode = DESCENDING; else mode = ASCENDING; } if (mode == DESCENDING) { octave_idx_type j = 0; float r; // Sort out NaNs. do r = el[j++]; while (xisnan (r) && j < n); // Orient the test so that NaN will not pass through. for (; j < n; j++) { if (r >= el[j]) r = el[j]; else { mode = UNSORTED; break; } } } else if (mode == ASCENDING) { // Sort out NaNs. while (n > 0 && xisnan (el[n-1])) n--; if (n > 0) { // Orient the test so that NaN will not pass through. float r = el[0]; for (octave_idx_type j = 1; j < n; j++) { if (r <= el[j]) r = el[j]; else { mode = UNSORTED; break; } } } } return mode; } template class OCTAVE_API octave_sort<float>; INSTANTIATE_ARRAY (float, OCTAVE_API); template OCTAVE_API std::ostream& operator << (std::ostream&, const Array<float>&); #include "DiagArray2.h" #include "DiagArray2.cc" template class OCTAVE_API DiagArray2<float>;