Mercurial > octave-dspies
view libinterp/corefcn/oct-strstrm.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 | 9ac2357f19bc |
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_oct_strstrm_h) #define octave_oct_strstrm_h 1 #include <string> #include <sstream> #include "oct-stream.h" class octave_base_strstream : public octave_base_stream { public: octave_base_strstream (std::ios::openmode m = std::ios::out, oct_mach_info::float_format ff = oct_mach_info::native_float_format ()) : octave_base_stream (m, ff) { } // Position a stream at OFFSET relative to ORIGIN. int seek (off_t, int); // Return current stream position. virtual off_t tell (void); // The name of the file. std::string name (void) const { return std::string (); } virtual std::streambuf *rdbuf (void) = 0; virtual bool bad (void) const = 0; virtual void clear (void) = 0; protected: ~octave_base_strstream (void) { } private: // No copying! octave_base_strstream (const octave_base_strstream&); octave_base_strstream& operator = (const octave_base_strstream&); }; class octave_istrstream : public octave_base_strstream { public: octave_istrstream (const char *data, std::ios::openmode arg_md = std::ios::out, oct_mach_info::float_format ff = oct_mach_info::native_float_format ()) : octave_base_strstream (arg_md, ff), is (data) { } octave_istrstream (const std::string& data, std::ios::openmode arg_md = std::ios::out, oct_mach_info::float_format ff = oct_mach_info::native_float_format ()) : octave_base_strstream (arg_md, ff), is (data.c_str ()) { } static octave_stream create (const char *data, std::ios::openmode arg_md = std::ios::out, oct_mach_info::float_format ff = oct_mach_info::native_float_format ()); static octave_stream create (const std::string& data, std::ios::openmode arg_md = std::ios::out, oct_mach_info::float_format ff = oct_mach_info::native_float_format ()); // Return nonzero if EOF has been reached on this stream. bool eof (void) const { return is.eof (); } std::istream *input_stream (void) { return &is; } std::ostream *output_stream (void) { return 0; } off_t tell (void) { return is.tellg (); } std::streambuf *rdbuf (void) { return is ? is.rdbuf () : 0; } bool bad (void) const { return is.bad (); } void clear (void) { is.clear (); } protected: ~octave_istrstream (void) { } private: std::istringstream is; // No copying! octave_istrstream (const octave_istrstream&); octave_istrstream& operator = (const octave_istrstream&); }; class octave_ostrstream : public octave_base_strstream { public: octave_ostrstream (std::ios::openmode arg_md = std::ios::out, oct_mach_info::float_format ff = oct_mach_info::native_float_format ()) : octave_base_strstream (arg_md, ff), os () { } static octave_stream create (std::ios::openmode arg_md = std::ios::out, oct_mach_info::float_format ff = oct_mach_info::native_float_format ()); // Return nonzero if EOF has been reached on this stream. bool eof (void) const { return os.eof (); } std::istream *input_stream (void) { return 0; } std::ostream *output_stream (void) { return &os; } std::string str (void) { return os.str (); } std::streambuf *rdbuf (void) { return os ? os.rdbuf () : 0; } bool bad (void) const { return os.bad (); } void clear (void) { os.clear (); } protected: ~octave_ostrstream (void) { } private: std::ostringstream os; // No copying! octave_ostrstream (const octave_ostrstream&); octave_ostrstream& operator = (const octave_ostrstream&); }; #endif