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annotate liboctave/util/lo-utils.cc @ 20148:4a41b7d426b6 stable

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Fix loading of ASCII files with NA values in final column (bug #44967). * lo-utils.cc (read_inf_nan_na): Check that last character read was not an EOF indicator (-1) before attempting to put it back on the stream.
author Rik <rik@octave.org>
date Fri, 01 May 2015 08:29:52 -0700
parents 4197fc428c7d
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1 // utils.cc
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2 /*
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3
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4 Copyright (C) 1996-2015 John W. Eaton
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5
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6 This file is part of Octave.
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7
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8 Octave is free software; you can redistribute it and/or modify it
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9 under the terms of the GNU General Public License as published by the
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10 Free Software Foundation; either version 3 of the License, or (at your
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11 option) any later version.
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12
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13 Octave is distributed in the hope that it will be useful, but WITHOUT
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14 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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15 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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16 for more details.
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17
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18 You should have received a copy of the GNU General Public License
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19 along with Octave; see the file COPYING. If not, see
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20 <http://www.gnu.org/licenses/>.
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21
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22 */
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23
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24 #ifdef HAVE_CONFIG_H
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25 #include <config.h>
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26 #endif
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27
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28 #include <cctype>
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29 #include <cstdlib>
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30 #include <cstdio>
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31 #include <cstring>
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32 #include <cfloat>
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33
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34 #include <limits>
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35 #include <string>
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36
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37 #include <sys/types.h>
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38 #include <unistd.h>
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39
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40 #include "quit.h"
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41
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42 #include "lo-error.h"
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43 #include "lo-ieee.h"
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44 #include "lo-mappers.h"
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45 #include "lo-utils.h"
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46
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47 bool xis_int_or_inf_or_nan (double x)
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48 { return xisnan (x) || D_NINT (x) == x; }
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49
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50 bool xis_one_or_zero (double x)
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51 { return x == 0 || x == 1; }
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52
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53 bool xis_zero (double x)
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54 { return x == 0; }
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55
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56 bool xtoo_large_for_float (double x)
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57 {
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58 return (xfinite (x) && fabs (x) > std::numeric_limits<float>::max ());
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59 }
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60
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61 bool xtoo_large_for_float (const Complex& x)
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62 {
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63 return (xtoo_large_for_float (x.real ())
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64 || xtoo_large_for_float (x.imag ()));
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65 }
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66
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67 bool xis_int_or_inf_or_nan (float x)
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68 { return xisnan (x) || D_NINT (x) == x; }
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69
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70 bool xis_one_or_zero (float x)
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71 { return x == 0 || x == 1; }
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72
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73 bool xis_zero (float x)
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74 { return x == 0; }
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75
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76 // Save a string.
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77
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78 char *
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79 strsave (const char *s)
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80 {
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81 if (! s)
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82 return 0;
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83
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84 int len = strlen (s);
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85 char *tmp = new char [len+1];
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86 tmp = strcpy (tmp, s);
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87 return tmp;
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88 }
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89
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90 // This function was adapted from xputenv from Karl Berry's kpathsearch
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91 // library.
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92
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93 // FIXME: make this do the right thing if we don't have a SMART_PUTENV.
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94
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95 void
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96 octave_putenv (const std::string& name, const std::string& value)
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97 {
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98 int new_len = name.length () + value.length () + 2;
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99
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100 char *new_item = static_cast<char*> (gnulib::malloc (new_len));
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101
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102 sprintf (new_item, "%s=%s", name.c_str (), value.c_str ());
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103
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104 // As far as I can see there's no way to distinguish between the
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105 // various errors; putenv doesn't have errno values.
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106
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107 if (gnulib::putenv (new_item) < 0)
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108 (*current_liboctave_error_handler) ("putenv (%s) failed", new_item);
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109 }
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110
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111 std::string
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112 octave_fgets (FILE *f)
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113 {
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114 bool eof;
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115 return octave_fgets (f, eof);
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116 }
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117
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118 std::string
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119 octave_fgets (FILE *f, bool& eof)
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120 {
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121 eof = false;
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122
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123 std::string retval;
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124
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125 int grow_size = 1024;
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126 int max_size = grow_size;
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127
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128 char *buf = static_cast<char *> (gnulib::malloc (max_size));
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129 char *bufptr = buf;
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130 int len = 0;
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131
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132 do
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133 {
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134 if (gnulib::fgets (bufptr, grow_size, f))
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135 {
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136 len = strlen (bufptr);
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137
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138 if (len == grow_size - 1)
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139 {
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140 int tmp = bufptr - buf + grow_size - 1;
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141 grow_size *= 2;
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142 max_size += grow_size;
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143 buf = static_cast<char *> (gnulib::realloc (buf, max_size));
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144 bufptr = buf + tmp;
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jwe
parents: 2847
diff changeset
145
10314
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parents: 10182
diff changeset
146 if (*(bufptr-1) == '\n')
07ebe522dac2 untabify liboctave C++ sources
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parents: 10182
diff changeset
147 {
07ebe522dac2 untabify liboctave C++ sources
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parents: 10182
diff changeset
148 *bufptr = '\0';
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
149 retval = buf;
07ebe522dac2 untabify liboctave C++ sources
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parents: 10182
diff changeset
150 }
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
151 }
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
152 else if (bufptr[len-1] != '\n')
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
153 {
07ebe522dac2 untabify liboctave C++ sources
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parents: 10182
diff changeset
154 bufptr[len++] = '\n';
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
155 bufptr[len] = '\0';
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
156 retval = buf;
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
157 }
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
158 else
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
159 retval = buf;
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
160 }
2926
66ef74ee5d9f [project @ 1997-05-05 03:20:52 by jwe]
jwe
parents: 2847
diff changeset
161 else
10314
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parents: 10182
diff changeset
162 {
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
163 if (len == 0)
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
164 {
07ebe522dac2 untabify liboctave C++ sources
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parents: 10182
diff changeset
165 eof = true;
4527
c0a23a13eea2 [project @ 2003-10-03 02:52:46 by jwe]
jwe
parents: 4130
diff changeset
166
10314
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John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
167 free (buf);
2926
66ef74ee5d9f [project @ 1997-05-05 03:20:52 by jwe]
jwe
parents: 2847
diff changeset
168
10314
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parents: 10182
diff changeset
169 buf = 0;
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
170 }
2926
66ef74ee5d9f [project @ 1997-05-05 03:20:52 by jwe]
jwe
parents: 2847
diff changeset
171
10314
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parents: 10182
diff changeset
172 break;
07ebe522dac2 untabify liboctave C++ sources
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parents: 10182
diff changeset
173 }
2926
66ef74ee5d9f [project @ 1997-05-05 03:20:52 by jwe]
jwe
parents: 2847
diff changeset
174 }
66ef74ee5d9f [project @ 1997-05-05 03:20:52 by jwe]
jwe
parents: 2847
diff changeset
175 while (retval.empty ());
66ef74ee5d9f [project @ 1997-05-05 03:20:52 by jwe]
jwe
parents: 2847
diff changeset
176
66ef74ee5d9f [project @ 1997-05-05 03:20:52 by jwe]
jwe
parents: 2847
diff changeset
177 if (buf)
66ef74ee5d9f [project @ 1997-05-05 03:20:52 by jwe]
jwe
parents: 2847
diff changeset
178 free (buf);
66ef74ee5d9f [project @ 1997-05-05 03:20:52 by jwe]
jwe
parents: 2847
diff changeset
179
10142
829e69ec3110 make OCTAVE_QUIT a function
Jaroslav Hajek <highegg@gmail.com>
parents: 10068
diff changeset
180 octave_quit ();
10068
ca93f583573d handle interrupts octave_fgets
Jaroslav Hajek <highegg@gmail.com>
parents: 9469
diff changeset
181
2926
66ef74ee5d9f [project @ 1997-05-05 03:20:52 by jwe]
jwe
parents: 2847
diff changeset
182 return retval;
66ef74ee5d9f [project @ 1997-05-05 03:20:52 by jwe]
jwe
parents: 2847
diff changeset
183 }
66ef74ee5d9f [project @ 1997-05-05 03:20:52 by jwe]
jwe
parents: 2847
diff changeset
184
3970
4f884e25aab9 [project @ 2002-07-02 04:14:35 by jwe]
jwe
parents: 3504
diff changeset
185 std::string
4f884e25aab9 [project @ 2002-07-02 04:14:35 by jwe]
jwe
parents: 3504
diff changeset
186 octave_fgetl (FILE *f)
4f884e25aab9 [project @ 2002-07-02 04:14:35 by jwe]
jwe
parents: 3504
diff changeset
187 {
4527
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jwe
parents: 4130
diff changeset
188 bool eof;
c0a23a13eea2 [project @ 2003-10-03 02:52:46 by jwe]
jwe
parents: 4130
diff changeset
189 return octave_fgetl (f, eof);
c0a23a13eea2 [project @ 2003-10-03 02:52:46 by jwe]
jwe
parents: 4130
diff changeset
190 }
c0a23a13eea2 [project @ 2003-10-03 02:52:46 by jwe]
jwe
parents: 4130
diff changeset
191
c0a23a13eea2 [project @ 2003-10-03 02:52:46 by jwe]
jwe
parents: 4130
diff changeset
192 std::string
c0a23a13eea2 [project @ 2003-10-03 02:52:46 by jwe]
jwe
parents: 4130
diff changeset
193 octave_fgetl (FILE *f, bool& eof)
c0a23a13eea2 [project @ 2003-10-03 02:52:46 by jwe]
jwe
parents: 4130
diff changeset
194 {
c0a23a13eea2 [project @ 2003-10-03 02:52:46 by jwe]
jwe
parents: 4130
diff changeset
195 std::string retval = octave_fgets (f, eof);
3970
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jwe
parents: 3504
diff changeset
196
4f884e25aab9 [project @ 2002-07-02 04:14:35 by jwe]
jwe
parents: 3504
diff changeset
197 size_t len = retval.length ();
4f884e25aab9 [project @ 2002-07-02 04:14:35 by jwe]
jwe
parents: 3504
diff changeset
198
4f884e25aab9 [project @ 2002-07-02 04:14:35 by jwe]
jwe
parents: 3504
diff changeset
199 if (retval[len-1] == '\n')
4f884e25aab9 [project @ 2002-07-02 04:14:35 by jwe]
jwe
parents: 3504
diff changeset
200 retval.resize (len-1);
4f884e25aab9 [project @ 2002-07-02 04:14:35 by jwe]
jwe
parents: 3504
diff changeset
201
4f884e25aab9 [project @ 2002-07-02 04:14:35 by jwe]
jwe
parents: 3504
diff changeset
202 return retval;
4f884e25aab9 [project @ 2002-07-02 04:14:35 by jwe]
jwe
parents: 3504
diff changeset
203 }
4f884e25aab9 [project @ 2002-07-02 04:14:35 by jwe]
jwe
parents: 3504
diff changeset
204
17928
079da800451b Fix loading complex values with 'NA' saved in text format (bug #40575).
Rik <rik@octave.org>
parents: 17861
diff changeset
205 // Note that the caller is responsible for repositioning the stream on failure.
14806
980e2d5c83f7 avoid calling putback more than once between reads
John W. Eaton <jwe@octave.org>
parents: 14138
diff changeset
206
14811
52cb71787cd1 use templates to avoid code duplication in octave_read_value functions
John W. Eaton <jwe@octave.org>
parents: 14806
diff changeset
207 template <typename T>
52cb71787cd1 use templates to avoid code duplication in octave_read_value functions
John W. Eaton <jwe@octave.org>
parents: 14806
diff changeset
208 T
14806
980e2d5c83f7 avoid calling putback more than once between reads
John W. Eaton <jwe@octave.org>
parents: 14138
diff changeset
209 read_inf_nan_na (std::istream& is, char c0)
4130
7d9bda865012 [project @ 2002-10-28 21:05:30 by jwe]
jwe
parents: 3970
diff changeset
210 {
14811
52cb71787cd1 use templates to avoid code duplication in octave_read_value functions
John W. Eaton <jwe@octave.org>
parents: 14806
diff changeset
211 T val = 0.0;
4130
7d9bda865012 [project @ 2002-10-28 21:05:30 by jwe]
jwe
parents: 3970
diff changeset
212
12995
7872afb42fab fix scanf problem with reading I (bug #33722)
John W. Eaton <jwe@octave.org>
parents: 12936
diff changeset
213 switch (c0)
4130
7d9bda865012 [project @ 2002-10-28 21:05:30 by jwe]
jwe
parents: 3970
diff changeset
214 {
7d9bda865012 [project @ 2002-10-28 21:05:30 by jwe]
jwe
parents: 3970
diff changeset
215 case 'i': case 'I':
7d9bda865012 [project @ 2002-10-28 21:05:30 by jwe]
jwe
parents: 3970
diff changeset
216 {
12995
7872afb42fab fix scanf problem with reading I (bug #33722)
John W. Eaton <jwe@octave.org>
parents: 12936
diff changeset
217 char c1 = is.get ();
7872afb42fab fix scanf problem with reading I (bug #33722)
John W. Eaton <jwe@octave.org>
parents: 12936
diff changeset
218 if (c1 == 'n' || c1 == 'N')
10314
07ebe522dac2 untabify liboctave C++ sources
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parents: 10182
diff changeset
219 {
12995
7872afb42fab fix scanf problem with reading I (bug #33722)
John W. Eaton <jwe@octave.org>
parents: 12936
diff changeset
220 char c2 = is.get ();
7872afb42fab fix scanf problem with reading I (bug #33722)
John W. Eaton <jwe@octave.org>
parents: 12936
diff changeset
221 if (c2 == 'f' || c2 == 'F')
14811
52cb71787cd1 use templates to avoid code duplication in octave_read_value functions
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parents: 14806
diff changeset
222 val = std::numeric_limits<T>::infinity ();
10314
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diff changeset
223 else
14806
980e2d5c83f7 avoid calling putback more than once between reads
John W. Eaton <jwe@octave.org>
parents: 14138
diff changeset
224 is.setstate (std::ios::failbit);
10314
07ebe522dac2 untabify liboctave C++ sources
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parents: 10182
diff changeset
225 }
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
226 else
14806
980e2d5c83f7 avoid calling putback more than once between reads
John W. Eaton <jwe@octave.org>
parents: 14138
diff changeset
227 is.setstate (std::ios::failbit);
4130
7d9bda865012 [project @ 2002-10-28 21:05:30 by jwe]
jwe
parents: 3970
diff changeset
228 }
7d9bda865012 [project @ 2002-10-28 21:05:30 by jwe]
jwe
parents: 3970
diff changeset
229 break;
7d9bda865012 [project @ 2002-10-28 21:05:30 by jwe]
jwe
parents: 3970
diff changeset
230
7d9bda865012 [project @ 2002-10-28 21:05:30 by jwe]
jwe
parents: 3970
diff changeset
231 case 'n': case 'N':
7d9bda865012 [project @ 2002-10-28 21:05:30 by jwe]
jwe
parents: 3970
diff changeset
232 {
12995
7872afb42fab fix scanf problem with reading I (bug #33722)
John W. Eaton <jwe@octave.org>
parents: 12936
diff changeset
233 char c1 = is.get ();
7872afb42fab fix scanf problem with reading I (bug #33722)
John W. Eaton <jwe@octave.org>
parents: 12936
diff changeset
234 if (c1 == 'a' || c1 == 'A')
10314
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
235 {
12995
7872afb42fab fix scanf problem with reading I (bug #33722)
John W. Eaton <jwe@octave.org>
parents: 12936
diff changeset
236 char c2 = is.get ();
7872afb42fab fix scanf problem with reading I (bug #33722)
John W. Eaton <jwe@octave.org>
parents: 12936
diff changeset
237 if (c2 == 'n' || c2 == 'N')
14811
52cb71787cd1 use templates to avoid code duplication in octave_read_value functions
John W. Eaton <jwe@octave.org>
parents: 14806
diff changeset
238 val = std::numeric_limits<T>::quiet_NaN ();
10314
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parents: 10182
diff changeset
239 else
17928
079da800451b Fix loading complex values with 'NA' saved in text format (bug #40575).
Rik <rik@octave.org>
parents: 17861
diff changeset
240 {
079da800451b Fix loading complex values with 'NA' saved in text format (bug #40575).
Rik <rik@octave.org>
parents: 17861
diff changeset
241 val = octave_numeric_limits<T>::NA ();
20148
4a41b7d426b6 Fix loading of ASCII files with NA values in final column (bug #44967).
Rik <rik@octave.org>
parents: 19697
diff changeset
242 if (c2 != EOF)
4a41b7d426b6 Fix loading of ASCII files with NA values in final column (bug #44967).
Rik <rik@octave.org>
parents: 19697
diff changeset
243 is.putback (c2);
17928
079da800451b Fix loading complex values with 'NA' saved in text format (bug #40575).
Rik <rik@octave.org>
parents: 17861
diff changeset
244 }
10314
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
245 }
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
246 else
14806
980e2d5c83f7 avoid calling putback more than once between reads
John W. Eaton <jwe@octave.org>
parents: 14138
diff changeset
247 is.setstate (std::ios::failbit);
4130
7d9bda865012 [project @ 2002-10-28 21:05:30 by jwe]
jwe
parents: 3970
diff changeset
248 }
7d9bda865012 [project @ 2002-10-28 21:05:30 by jwe]
jwe
parents: 3970
diff changeset
249 break;
7d9bda865012 [project @ 2002-10-28 21:05:30 by jwe]
jwe
parents: 3970
diff changeset
250
7d9bda865012 [project @ 2002-10-28 21:05:30 by jwe]
jwe
parents: 3970
diff changeset
251 default:
7d9bda865012 [project @ 2002-10-28 21:05:30 by jwe]
jwe
parents: 3970
diff changeset
252 abort ();
7d9bda865012 [project @ 2002-10-28 21:05:30 by jwe]
jwe
parents: 3970
diff changeset
253 }
7d9bda865012 [project @ 2002-10-28 21:05:30 by jwe]
jwe
parents: 3970
diff changeset
254
14811
52cb71787cd1 use templates to avoid code duplication in octave_read_value functions
John W. Eaton <jwe@octave.org>
parents: 14806
diff changeset
255 return val;
4130
7d9bda865012 [project @ 2002-10-28 21:05:30 by jwe]
jwe
parents: 3970
diff changeset
256 }
7d9bda865012 [project @ 2002-10-28 21:05:30 by jwe]
jwe
parents: 3970
diff changeset
257
12936
b74cb659e757 accept but discard sign when reading NA and NaN values
John W. Eaton <jwe@octave.org>
parents: 12918
diff changeset
258 // Read a double value. Discard any sign on NaN and NA.
b74cb659e757 accept but discard sign when reading NA and NaN values
John W. Eaton <jwe@octave.org>
parents: 12918
diff changeset
259
14811
52cb71787cd1 use templates to avoid code duplication in octave_read_value functions
John W. Eaton <jwe@octave.org>
parents: 14806
diff changeset
260 template <typename T>
4130
7d9bda865012 [project @ 2002-10-28 21:05:30 by jwe]
jwe
parents: 3970
diff changeset
261 double
14811
52cb71787cd1 use templates to avoid code duplication in octave_read_value functions
John W. Eaton <jwe@octave.org>
parents: 14806
diff changeset
262 octave_read_fp_value (std::istream& is)
4130
7d9bda865012 [project @ 2002-10-28 21:05:30 by jwe]
jwe
parents: 3970
diff changeset
263 {
14811
52cb71787cd1 use templates to avoid code duplication in octave_read_value functions
John W. Eaton <jwe@octave.org>
parents: 14806
diff changeset
264 T val = 0.0;
4130
7d9bda865012 [project @ 2002-10-28 21:05:30 by jwe]
jwe
parents: 3970
diff changeset
265
17769
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/
Rik <rik@octave.org>
parents: 17744
diff changeset
266 // FIXME: resetting stream position is likely to fail unless we are
14806
980e2d5c83f7 avoid calling putback more than once between reads
John W. Eaton <jwe@octave.org>
parents: 14138
diff changeset
267 // reading from a file.
980e2d5c83f7 avoid calling putback more than once between reads
John W. Eaton <jwe@octave.org>
parents: 14138
diff changeset
268 std::ios::streampos pos = is.tellg ();
980e2d5c83f7 avoid calling putback more than once between reads
John W. Eaton <jwe@octave.org>
parents: 14138
diff changeset
269
6907
c8081f4c094f [project @ 2007-09-17 17:31:10 by jwe]
jwe
parents: 6897
diff changeset
270 char c1 = ' ';
4130
7d9bda865012 [project @ 2002-10-28 21:05:30 by jwe]
jwe
parents: 3970
diff changeset
271
6907
c8081f4c094f [project @ 2007-09-17 17:31:10 by jwe]
jwe
parents: 6897
diff changeset
272 while (isspace (c1))
c8081f4c094f [project @ 2007-09-17 17:31:10 by jwe]
jwe
parents: 6897
diff changeset
273 c1 = is.get ();
c8081f4c094f [project @ 2007-09-17 17:31:10 by jwe]
jwe
parents: 6897
diff changeset
274
14806
980e2d5c83f7 avoid calling putback more than once between reads
John W. Eaton <jwe@octave.org>
parents: 14138
diff changeset
275 bool neg = false;
980e2d5c83f7 avoid calling putback more than once between reads
John W. Eaton <jwe@octave.org>
parents: 14138
diff changeset
276
6194
0d2ff0dfb159 [project @ 2006-12-01 05:25:38 by jwe]
jwe
parents: 5775
diff changeset
277 switch (c1)
4130
7d9bda865012 [project @ 2002-10-28 21:05:30 by jwe]
jwe
parents: 3970
diff changeset
278 {
6194
0d2ff0dfb159 [project @ 2006-12-01 05:25:38 by jwe]
jwe
parents: 5775
diff changeset
279 case '-':
14806
980e2d5c83f7 avoid calling putback more than once between reads
John W. Eaton <jwe@octave.org>
parents: 14138
diff changeset
280 neg = true;
980e2d5c83f7 avoid calling putback more than once between reads
John W. Eaton <jwe@octave.org>
parents: 14138
diff changeset
281 // fall through...
6194
0d2ff0dfb159 [project @ 2006-12-01 05:25:38 by jwe]
jwe
parents: 5775
diff changeset
282
0d2ff0dfb159 [project @ 2006-12-01 05:25:38 by jwe]
jwe
parents: 5775
diff changeset
283 case '+':
0d2ff0dfb159 [project @ 2006-12-01 05:25:38 by jwe]
jwe
parents: 5775
diff changeset
284 {
10314
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John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
285 char c2 = 0;
07ebe522dac2 untabify liboctave C++ sources
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parents: 10182
diff changeset
286 c2 = is.get ();
12936
b74cb659e757 accept but discard sign when reading NA and NaN values
John W. Eaton <jwe@octave.org>
parents: 12918
diff changeset
287 if (c2 == 'i' || c2 == 'I' || c2 == 'n' || c2 == 'N')
14811
52cb71787cd1 use templates to avoid code duplication in octave_read_value functions
John W. Eaton <jwe@octave.org>
parents: 14806
diff changeset
288 val = read_inf_nan_na<T> (is, c2);
10314
07ebe522dac2 untabify liboctave C++ sources
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parents: 10182
diff changeset
289 else
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
290 {
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
291 is.putback (c2);
14811
52cb71787cd1 use templates to avoid code duplication in octave_read_value functions
John W. Eaton <jwe@octave.org>
parents: 14806
diff changeset
292 is >> val;
10314
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
293 }
14806
980e2d5c83f7 avoid calling putback more than once between reads
John W. Eaton <jwe@octave.org>
parents: 14138
diff changeset
294
980e2d5c83f7 avoid calling putback more than once between reads
John W. Eaton <jwe@octave.org>
parents: 14138
diff changeset
295 if (neg && ! is.fail ())
14811
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parents: 14806
diff changeset
296 val = -val;
6194
0d2ff0dfb159 [project @ 2006-12-01 05:25:38 by jwe]
jwe
parents: 5775
diff changeset
297 }
0d2ff0dfb159 [project @ 2006-12-01 05:25:38 by jwe]
jwe
parents: 5775
diff changeset
298 break;
0d2ff0dfb159 [project @ 2006-12-01 05:25:38 by jwe]
jwe
parents: 5775
diff changeset
299
4130
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jwe
parents: 3970
diff changeset
300 case 'i': case 'I':
7d9bda865012 [project @ 2002-10-28 21:05:30 by jwe]
jwe
parents: 3970
diff changeset
301 case 'n': case 'N':
14811
52cb71787cd1 use templates to avoid code duplication in octave_read_value functions
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parents: 14806
diff changeset
302 val = read_inf_nan_na<T> (is, c1);
4130
7d9bda865012 [project @ 2002-10-28 21:05:30 by jwe]
jwe
parents: 3970
diff changeset
303 break;
7d9bda865012 [project @ 2002-10-28 21:05:30 by jwe]
jwe
parents: 3970
diff changeset
304
7d9bda865012 [project @ 2002-10-28 21:05:30 by jwe]
jwe
parents: 3970
diff changeset
305 default:
6194
0d2ff0dfb159 [project @ 2006-12-01 05:25:38 by jwe]
jwe
parents: 5775
diff changeset
306 is.putback (c1);
14811
52cb71787cd1 use templates to avoid code duplication in octave_read_value functions
John W. Eaton <jwe@octave.org>
parents: 14806
diff changeset
307 is >> val;
14806
980e2d5c83f7 avoid calling putback more than once between reads
John W. Eaton <jwe@octave.org>
parents: 14138
diff changeset
308 break;
980e2d5c83f7 avoid calling putback more than once between reads
John W. Eaton <jwe@octave.org>
parents: 14138
diff changeset
309 }
980e2d5c83f7 avoid calling putback more than once between reads
John W. Eaton <jwe@octave.org>
parents: 14138
diff changeset
310
980e2d5c83f7 avoid calling putback more than once between reads
John W. Eaton <jwe@octave.org>
parents: 14138
diff changeset
311 std::ios::iostate status = is.rdstate ();
980e2d5c83f7 avoid calling putback more than once between reads
John W. Eaton <jwe@octave.org>
parents: 14138
diff changeset
312 if (status & std::ios::failbit)
980e2d5c83f7 avoid calling putback more than once between reads
John W. Eaton <jwe@octave.org>
parents: 14138
diff changeset
313 {
980e2d5c83f7 avoid calling putback more than once between reads
John W. Eaton <jwe@octave.org>
parents: 14138
diff changeset
314 is.clear ();
980e2d5c83f7 avoid calling putback more than once between reads
John W. Eaton <jwe@octave.org>
parents: 14138
diff changeset
315 is.seekg (pos);
980e2d5c83f7 avoid calling putback more than once between reads
John W. Eaton <jwe@octave.org>
parents: 14138
diff changeset
316 is.setstate (status);
4130
7d9bda865012 [project @ 2002-10-28 21:05:30 by jwe]
jwe
parents: 3970
diff changeset
317 }
7d9bda865012 [project @ 2002-10-28 21:05:30 by jwe]
jwe
parents: 3970
diff changeset
318
14811
52cb71787cd1 use templates to avoid code duplication in octave_read_value functions
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parents: 14806
diff changeset
319 return val;
4130
7d9bda865012 [project @ 2002-10-28 21:05:30 by jwe]
jwe
parents: 3970
diff changeset
320 }
7d9bda865012 [project @ 2002-10-28 21:05:30 by jwe]
jwe
parents: 3970
diff changeset
321
14811
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parents: 14806
diff changeset
322 template <typename T>
52cb71787cd1 use templates to avoid code duplication in octave_read_value functions
John W. Eaton <jwe@octave.org>
parents: 14806
diff changeset
323 std::complex<T>
52cb71787cd1 use templates to avoid code duplication in octave_read_value functions
John W. Eaton <jwe@octave.org>
parents: 14806
diff changeset
324 octave_read_cx_fp_value (std::istream& is)
4130
7d9bda865012 [project @ 2002-10-28 21:05:30 by jwe]
jwe
parents: 3970
diff changeset
325 {
18084
8e056300994b Follow coding convention of defining and initializing only 1 variable per line in liboctave.
Rik <rik@octave.org>
parents: 17928
diff changeset
326 T re = 0.0;
8e056300994b Follow coding convention of defining and initializing only 1 variable per line in liboctave.
Rik <rik@octave.org>
parents: 17928
diff changeset
327 T im = 0.0;
4130
7d9bda865012 [project @ 2002-10-28 21:05:30 by jwe]
jwe
parents: 3970
diff changeset
328
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52cb71787cd1 use templates to avoid code duplication in octave_read_value functions
John W. Eaton <jwe@octave.org>
parents: 14806
diff changeset
329 std::complex<T> cx = 0.0;
4130
7d9bda865012 [project @ 2002-10-28 21:05:30 by jwe]
jwe
parents: 3970
diff changeset
330
6907
c8081f4c094f [project @ 2007-09-17 17:31:10 by jwe]
jwe
parents: 6897
diff changeset
331 char ch = ' ';
4130
7d9bda865012 [project @ 2002-10-28 21:05:30 by jwe]
jwe
parents: 3970
diff changeset
332
6907
c8081f4c094f [project @ 2007-09-17 17:31:10 by jwe]
jwe
parents: 6897
diff changeset
333 while (isspace (ch))
c8081f4c094f [project @ 2007-09-17 17:31:10 by jwe]
jwe
parents: 6897
diff changeset
334 ch = is.get ();
4130
7d9bda865012 [project @ 2002-10-28 21:05:30 by jwe]
jwe
parents: 3970
diff changeset
335
7d9bda865012 [project @ 2002-10-28 21:05:30 by jwe]
jwe
parents: 3970
diff changeset
336 if (ch == '(')
7d9bda865012 [project @ 2002-10-28 21:05:30 by jwe]
jwe
parents: 3970
diff changeset
337 {
14811
52cb71787cd1 use templates to avoid code duplication in octave_read_value functions
John W. Eaton <jwe@octave.org>
parents: 14806
diff changeset
338 re = octave_read_value<T> (is);
6897
935d23e16951 [project @ 2007-09-13 19:13:56 by jwe]
jwe
parents: 6490
diff changeset
339 ch = is.get ();
4130
7d9bda865012 [project @ 2002-10-28 21:05:30 by jwe]
jwe
parents: 3970
diff changeset
340
7d9bda865012 [project @ 2002-10-28 21:05:30 by jwe]
jwe
parents: 3970
diff changeset
341 if (ch == ',')
10314
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
342 {
14811
52cb71787cd1 use templates to avoid code duplication in octave_read_value functions
John W. Eaton <jwe@octave.org>
parents: 14806
diff changeset
343 im = octave_read_value<T> (is);
10314
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
344 ch = is.get ();
4130
7d9bda865012 [project @ 2002-10-28 21:05:30 by jwe]
jwe
parents: 3970
diff changeset
345
10314
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
346 if (ch == ')')
14811
52cb71787cd1 use templates to avoid code duplication in octave_read_value functions
John W. Eaton <jwe@octave.org>
parents: 14806
diff changeset
347 cx = std::complex<T> (re, im);
10314
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
348 else
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
349 is.setstate (std::ios::failbit);
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
350 }
4130
7d9bda865012 [project @ 2002-10-28 21:05:30 by jwe]
jwe
parents: 3970
diff changeset
351 else if (ch == ')')
10314
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
352 cx = re;
4130
7d9bda865012 [project @ 2002-10-28 21:05:30 by jwe]
jwe
parents: 3970
diff changeset
353 else
10314
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
354 is.setstate (std::ios::failbit);
4130
7d9bda865012 [project @ 2002-10-28 21:05:30 by jwe]
jwe
parents: 3970
diff changeset
355 }
7d9bda865012 [project @ 2002-10-28 21:05:30 by jwe]
jwe
parents: 3970
diff changeset
356 else
7d9bda865012 [project @ 2002-10-28 21:05:30 by jwe]
jwe
parents: 3970
diff changeset
357 {
7d9bda865012 [project @ 2002-10-28 21:05:30 by jwe]
jwe
parents: 3970
diff changeset
358 is.putback (ch);
9469
c6edba80dfae sanity checks for loading sparse matrices
John W. Eaton <jwe@octave.org>
parents: 8920
diff changeset
359 cx = octave_read_value<double> (is);
4130
7d9bda865012 [project @ 2002-10-28 21:05:30 by jwe]
jwe
parents: 3970
diff changeset
360 }
7d9bda865012 [project @ 2002-10-28 21:05:30 by jwe]
jwe
parents: 3970
diff changeset
361
7d9bda865012 [project @ 2002-10-28 21:05:30 by jwe]
jwe
parents: 3970
diff changeset
362 return cx;
7d9bda865012 [project @ 2002-10-28 21:05:30 by jwe]
jwe
parents: 3970
diff changeset
363 }
7d9bda865012 [project @ 2002-10-28 21:05:30 by jwe]
jwe
parents: 3970
diff changeset
364
14811
52cb71787cd1 use templates to avoid code duplication in octave_read_value functions
John W. Eaton <jwe@octave.org>
parents: 14806
diff changeset
365 template <> OCTAVE_API double octave_read_value (std::istream& is)
7789
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7048
diff changeset
366 {
14811
52cb71787cd1 use templates to avoid code duplication in octave_read_value functions
John W. Eaton <jwe@octave.org>
parents: 14806
diff changeset
367 return octave_read_fp_value<double> (is);
7789
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7048
diff changeset
368 }
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7048
diff changeset
369
14811
52cb71787cd1 use templates to avoid code duplication in octave_read_value functions
John W. Eaton <jwe@octave.org>
parents: 14806
diff changeset
370 template <> OCTAVE_API Complex octave_read_value (std::istream& is)
7789
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7048
diff changeset
371 {
14811
52cb71787cd1 use templates to avoid code duplication in octave_read_value functions
John W. Eaton <jwe@octave.org>
parents: 14806
diff changeset
372 return octave_read_cx_fp_value<double> (is);
7789
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7048
diff changeset
373 }
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7048
diff changeset
374
14811
52cb71787cd1 use templates to avoid code duplication in octave_read_value functions
John W. Eaton <jwe@octave.org>
parents: 14806
diff changeset
375 template <> OCTAVE_API float octave_read_value (std::istream& is)
7789
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7048
diff changeset
376 {
14811
52cb71787cd1 use templates to avoid code duplication in octave_read_value functions
John W. Eaton <jwe@octave.org>
parents: 14806
diff changeset
377 return octave_read_fp_value<float> (is);
52cb71787cd1 use templates to avoid code duplication in octave_read_value functions
John W. Eaton <jwe@octave.org>
parents: 14806
diff changeset
378 }
7789
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7048
diff changeset
379
14811
52cb71787cd1 use templates to avoid code duplication in octave_read_value functions
John W. Eaton <jwe@octave.org>
parents: 14806
diff changeset
380 template <> OCTAVE_API FloatComplex octave_read_value (std::istream& is)
52cb71787cd1 use templates to avoid code duplication in octave_read_value functions
John W. Eaton <jwe@octave.org>
parents: 14806
diff changeset
381 {
52cb71787cd1 use templates to avoid code duplication in octave_read_value functions
John W. Eaton <jwe@octave.org>
parents: 14806
diff changeset
382 return octave_read_cx_fp_value<float> (is);
7789
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7048
diff changeset
383 }
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7048
diff changeset
384
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7048
diff changeset
385 void
9469
c6edba80dfae sanity checks for loading sparse matrices
John W. Eaton <jwe@octave.org>
parents: 8920
diff changeset
386 octave_write_double (std::ostream& os, double d)
c6edba80dfae sanity checks for loading sparse matrices
John W. Eaton <jwe@octave.org>
parents: 8920
diff changeset
387 {
c6edba80dfae sanity checks for loading sparse matrices
John W. Eaton <jwe@octave.org>
parents: 8920
diff changeset
388 if (lo_ieee_is_NA (d))
c6edba80dfae sanity checks for loading sparse matrices
John W. Eaton <jwe@octave.org>
parents: 8920
diff changeset
389 os << "NA";
c6edba80dfae sanity checks for loading sparse matrices
John W. Eaton <jwe@octave.org>
parents: 8920
diff changeset
390 else if (lo_ieee_isnan (d))
c6edba80dfae sanity checks for loading sparse matrices
John W. Eaton <jwe@octave.org>
parents: 8920
diff changeset
391 os << "NaN";
c6edba80dfae sanity checks for loading sparse matrices
John W. Eaton <jwe@octave.org>
parents: 8920
diff changeset
392 else if (lo_ieee_isinf (d))
c6edba80dfae sanity checks for loading sparse matrices
John W. Eaton <jwe@octave.org>
parents: 8920
diff changeset
393 os << (d < 0 ? "-Inf" : "Inf");
c6edba80dfae sanity checks for loading sparse matrices
John W. Eaton <jwe@octave.org>
parents: 8920
diff changeset
394 else
c6edba80dfae sanity checks for loading sparse matrices
John W. Eaton <jwe@octave.org>
parents: 8920
diff changeset
395 os << d;
c6edba80dfae sanity checks for loading sparse matrices
John W. Eaton <jwe@octave.org>
parents: 8920
diff changeset
396 }
c6edba80dfae sanity checks for loading sparse matrices
John W. Eaton <jwe@octave.org>
parents: 8920
diff changeset
397
c6edba80dfae sanity checks for loading sparse matrices
John W. Eaton <jwe@octave.org>
parents: 8920
diff changeset
398 void
c6edba80dfae sanity checks for loading sparse matrices
John W. Eaton <jwe@octave.org>
parents: 8920
diff changeset
399 octave_write_complex (std::ostream& os, const Complex& c)
c6edba80dfae sanity checks for loading sparse matrices
John W. Eaton <jwe@octave.org>
parents: 8920
diff changeset
400 {
c6edba80dfae sanity checks for loading sparse matrices
John W. Eaton <jwe@octave.org>
parents: 8920
diff changeset
401 os << "(";
c6edba80dfae sanity checks for loading sparse matrices
John W. Eaton <jwe@octave.org>
parents: 8920
diff changeset
402 octave_write_double (os, real (c));
c6edba80dfae sanity checks for loading sparse matrices
John W. Eaton <jwe@octave.org>
parents: 8920
diff changeset
403 os << ",";
c6edba80dfae sanity checks for loading sparse matrices
John W. Eaton <jwe@octave.org>
parents: 8920
diff changeset
404 octave_write_double (os, imag (c));
c6edba80dfae sanity checks for loading sparse matrices
John W. Eaton <jwe@octave.org>
parents: 8920
diff changeset
405 os << ")";
c6edba80dfae sanity checks for loading sparse matrices
John W. Eaton <jwe@octave.org>
parents: 8920
diff changeset
406 }
c6edba80dfae sanity checks for loading sparse matrices
John W. Eaton <jwe@octave.org>
parents: 8920
diff changeset
407
c6edba80dfae sanity checks for loading sparse matrices
John W. Eaton <jwe@octave.org>
parents: 8920
diff changeset
408 void
7789
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7048
diff changeset
409 octave_write_float (std::ostream& os, float d)
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7048
diff changeset
410 {
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7048
diff changeset
411 if (lo_ieee_is_NA (d))
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7048
diff changeset
412 os << "NA";
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7048
diff changeset
413 else if (lo_ieee_isnan (d))
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7048
diff changeset
414 os << "NaN";
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7048
diff changeset
415 else if (lo_ieee_isinf (d))
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7048
diff changeset
416 os << (d < 0 ? "-Inf" : "Inf");
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7048
diff changeset
417 else
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7048
diff changeset
418 os << d;
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7048
diff changeset
419 }
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7048
diff changeset
420
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7048
diff changeset
421 void
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7048
diff changeset
422 octave_write_float_complex (std::ostream& os, const FloatComplex& c)
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7048
diff changeset
423 {
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7048
diff changeset
424 os << "(";
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7048
diff changeset
425 octave_write_float (os, real (c));
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7048
diff changeset
426 os << ",";
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7048
diff changeset
427 octave_write_float (os, imag (c));
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7048
diff changeset
428 os << ")";
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7048
diff changeset
429 }