Mercurial > octave-dspies
view liboctave/util/pathsearch.h @ 19010:3fb030666878 draft default tip dspies
Added special-case logical-indexing function
* logical-index.h (New file) : Logical-indexing function. May be called on
octave_value types via call_bool_index
* nz-iterators.h : Add base-class nz_iterator for iterator types. Array has
template bool for whether to internally store row-col or compute on the fly
Add skip_ahead method which skips forward to the next nonzero after its
argument
Add flat_index for computing octave_idx_type index of current position (with
assertion failure in the case of overflow)
Move is_zero to separate file
* ov-base-diag.cc, ov-base-mat.cc, ov-base-sparse.cc, ov-perm.cc
(do_index_op): Add call to call_bool_index in logical-index.h
* Array.h : Move forward-declaration for array_iterator to separate header file
* dim-vector.cc (dim_max): Refers to idx-bounds.h (max_idx)
* array-iter-decl.h (New file): Header file for forward declaration of
array-iterator
* direction.h : Add constants fdirc and bdirc to avoid having to reconstruct
them
* dv-utils.h, dv-utils.cc (New files) :
Utility functions for querying and constructing dim-vectors
* idx-bounds.h (New file) :
Utility constants and functions for determining whether things will overflow
the maximum allowed bounds
* interp-idx.h (New function : to_flat_idx) : Converts row-col pair to linear
index of octave_idx_type
* is-zero.h (New file) : Function for determining whether an element is zero
* logical-index.tst : Add tests for correct return-value dimensions and large
sparse matrix behavior
author | David Spies <dnspies@gmail.com> |
---|---|
date | Fri, 25 Jul 2014 13:39:31 -0600 |
parents | 49a5a4be04a1 |
children |
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/* Copyright (C) 1996-2013 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 (octave_pathsearch_h) #define octave_pathsearch_h 1 #include <string> #include "str-vec.h" class OCTAVE_API dir_path { public: dir_path (const std::string& s = std::string (), const std::string& d = std::string ()) : p_orig (s), p_default (d), initialized (false), p (), pv () { if (! p_orig.empty ()) init (); } dir_path (const dir_path& dp) : p_orig (dp.p_orig), p_default (dp.p_default), initialized (dp.initialized), p (dp.p), pv (dp.pv) { } dir_path& operator = (const dir_path& dp) { p_orig = dp.p_orig; p_default = dp.p_default; initialized = dp.initialized; p = dp.p; pv = dp.pv; return *this; } ~dir_path (void) { } void set (const std::string& s) { initialized = false; p_orig = s; init (); } string_vector elements (void); string_vector all_directories (void); std::string find_first (const std::string&); std::string find (const std::string& nm) { return find_first (nm); } string_vector find_all (const std::string&); std::string find_first_of (const string_vector& names); string_vector find_all_first_of (const string_vector& names); void rehash (void) { initialized = false; init (); } static char path_sep_char (void) { return static_members::path_sep_char (); } static void path_sep_char (char c) { static_members::path_sep_char (c); } static std::string path_sep_str (void) { return static_members::path_sep_str (); } static bool is_path_sep (char c) { return c == path_sep_char (); } private: // The colon separated list that we were given. std::string p_orig; // The default path. If specified, replaces leading, trailing, or // doubled colons in p_orig. std::string p_default; // TRUE means we've unpacked p. bool initialized; // A version of the colon separate list on which we have performed // tilde, variable, and possibly default path expansion. std::string p; // The elements of the list. string_vector pv; void init (void); // Use a singleton class for these data members instead of just // making them static members of the dir_path class so that we can // ensure proper initialization. class OCTAVE_API static_members { public: static_members (void); static char path_sep_char (void) { return instance_ok () ? instance->xpath_sep_char : 0; } static void path_sep_char (char c) { if (instance_ok ()) { instance->xpath_sep_char = c; instance->xpath_sep_str = std::string (1, c); } } static std::string path_sep_str (void) { return instance_ok () ? instance->xpath_sep_str : std::string (); } private: static static_members *instance; static void cleanup_instance (void) { delete instance; instance = 0; } static bool instance_ok (void); // No copying! static_members (const static_members&); static_members& operator = (const static_members&); char xpath_sep_char; std::string xpath_sep_str; }; }; #endif