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annotate liboctave/lo-utils.cc @ 10068:ca93f583573d

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handle interrupts octave_fgets
author Jaroslav Hajek <highegg@gmail.com>
date Thu, 07 Jan 2010 07:58:23 +0100
parents c6edba80dfae
children 829e69ec3110
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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, 1997, 2000, 2002, 2003, 2004, 2005, 2006, 2007, 2008
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5 John W. Eaton
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6
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7 This file is part of Octave.
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8
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9 Octave is free software; you can redistribute it and/or modify it
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10 under the terms of the GNU General Public License as published by the
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11 Free Software Foundation; either version 3 of the License, or (at your
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12 option) any later version.
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13
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14 Octave is distributed in the hope that it will be useful, but WITHOUT
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15 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
4cb6aaa0f2c7 [project @ 1996-02-17 02:54:24 by jwe]
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16 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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17 for more details.
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18
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19 You should have received a copy of the GNU General Public License
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20 along with Octave; see the file COPYING. If not, see
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21 <http://www.gnu.org/licenses/>.
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22
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23 */
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24
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25 #ifdef HAVE_CONFIG_H
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26 #include <config.h>
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27 #endif
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28
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29 #include <cctype>
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30 #include <cstdlib>
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31 #include <cstdio>
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32 #include <cstring>
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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 #ifdef HAVE_UNISTD_H
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38 #ifdef HAVE_SYS_TYPES_H
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39 #include <sys/types.h>
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40 #endif
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41 #include <unistd.h>
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42 #endif
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43
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44 #include "quit.h"
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45
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46 #include "lo-error.h"
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47 #include "lo-ieee.h"
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48 #include "lo-mappers.h"
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49 #include "lo-utils.h"
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50
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51 // Convert X to the nearest integer value. Should not pass NaN to
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52 // this function.
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53
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54 // Sometimes you need a large integer, but not always.
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55
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56 octave_idx_type
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57 NINTbig (double x)
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58 {
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59 if (x > std::numeric_limits<octave_idx_type>::max ())
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60 return std::numeric_limits<octave_idx_type>::max ();
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61 else if (x < std::numeric_limits<octave_idx_type>::min ())
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62 return std::numeric_limits<octave_idx_type>::min ();
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63 else
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64 return static_cast<octave_idx_type> ((x > 0) ? (x + 0.5) : (x - 0.5));
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65 }
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66
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67 octave_idx_type
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68 NINTbig (float x)
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69 {
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70 if (x > std::numeric_limits<octave_idx_type>::max ())
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71 return std::numeric_limits<octave_idx_type>::max ();
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72 else if (x < std::numeric_limits<octave_idx_type>::min ())
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73 return std::numeric_limits<octave_idx_type>::min ();
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74 else
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75 return static_cast<octave_idx_type> ((x > 0) ? (x + 0.5) : (x - 0.5));
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76 }
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77
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78 int
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79 NINT (double x)
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80 {
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81 if (x > std::numeric_limits<int>::max ())
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82 return std::numeric_limits<int>::max ();
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83 else if (x < std::numeric_limits<int>::min ())
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84 return std::numeric_limits<int>::min ();
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85 else
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86 return static_cast<int> ((x > 0) ? (x + 0.5) : (x - 0.5));
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87 }
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88
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89 int
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90 NINT (float x)
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91 {
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92 if (x > std::numeric_limits<int>::max ())
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93 return std::numeric_limits<int>::max ();
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94 else if (x < std::numeric_limits<int>::min ())
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95 return std::numeric_limits<int>::min ();
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96 else
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97 return static_cast<int> ((x > 0) ? (x + 0.5) : (x - 0.5));
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98 }
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99
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100 double
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101 D_NINT (double x)
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102 {
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103 if (xisinf (x) || xisnan (x))
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104 return x;
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105 else
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106 return floor (x + 0.5);
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107 }
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108
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109 float
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110 F_NINT (float x)
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111 {
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112 if (xisinf (x) || xisnan (x))
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113 return x;
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114 else
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115 return floor (x + 0.5);
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116 }
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117
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118 // Save a string.
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119
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120 char *
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121 strsave (const char *s)
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122 {
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123 if (! s)
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124 return 0;
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125
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126 int len = strlen (s);
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127 char *tmp = new char [len+1];
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128 tmp = strcpy (tmp, s);
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129 return tmp;
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130 }
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131
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132 // This function was adapted from xputenv from Karl Berry's kpathsearch
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133 // library.
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134
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135 // FIXME -- make this do the right thing if we don't have a
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136 // SMART_PUTENV.
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137
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138 void
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139 octave_putenv (const std::string& name, const std::string& value)
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140 {
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141 int new_len = name.length () + value.length () + 2;
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142
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143 char *new_item = static_cast<char*> (malloc (new_len));
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144
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145 sprintf (new_item, "%s=%s", name.c_str (), value.c_str ());
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146
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147 // As far as I can see there's no way to distinguish between the
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148 // various errors; putenv doesn't have errno values.
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149
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150 if (putenv (new_item) < 0)
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151 (*current_liboctave_error_handler) ("putenv (%s) failed", new_item);
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152 }
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153
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154 std::string
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66ef74ee5d9f [project @ 1997-05-05 03:20:52 by jwe]
jwe
parents: 2847
diff changeset
155 octave_fgets (FILE *f)
66ef74ee5d9f [project @ 1997-05-05 03:20:52 by jwe]
jwe
parents: 2847
diff changeset
156 {
4527
c0a23a13eea2 [project @ 2003-10-03 02:52:46 by jwe]
jwe
parents: 4130
diff changeset
157 bool eof;
c0a23a13eea2 [project @ 2003-10-03 02:52:46 by jwe]
jwe
parents: 4130
diff changeset
158 return octave_fgets (f, eof);
c0a23a13eea2 [project @ 2003-10-03 02:52:46 by jwe]
jwe
parents: 4130
diff changeset
159 }
c0a23a13eea2 [project @ 2003-10-03 02:52:46 by jwe]
jwe
parents: 4130
diff changeset
160
c0a23a13eea2 [project @ 2003-10-03 02:52:46 by jwe]
jwe
parents: 4130
diff changeset
161 std::string
c0a23a13eea2 [project @ 2003-10-03 02:52:46 by jwe]
jwe
parents: 4130
diff changeset
162 octave_fgets (FILE *f, bool& eof)
c0a23a13eea2 [project @ 2003-10-03 02:52:46 by jwe]
jwe
parents: 4130
diff changeset
163 {
c0a23a13eea2 [project @ 2003-10-03 02:52:46 by jwe]
jwe
parents: 4130
diff changeset
164 eof = false;
c0a23a13eea2 [project @ 2003-10-03 02:52:46 by jwe]
jwe
parents: 4130
diff changeset
165
3504
5eef8a2294bd [project @ 2000-02-01 10:06:51 by jwe]
jwe
parents: 2926
diff changeset
166 std::string retval;
2926
66ef74ee5d9f [project @ 1997-05-05 03:20:52 by jwe]
jwe
parents: 2847
diff changeset
167
66ef74ee5d9f [project @ 1997-05-05 03:20:52 by jwe]
jwe
parents: 2847
diff changeset
168 int grow_size = 1024;
66ef74ee5d9f [project @ 1997-05-05 03:20:52 by jwe]
jwe
parents: 2847
diff changeset
169 int max_size = grow_size;
66ef74ee5d9f [project @ 1997-05-05 03:20:52 by jwe]
jwe
parents: 2847
diff changeset
170
66ef74ee5d9f [project @ 1997-05-05 03:20:52 by jwe]
jwe
parents: 2847
diff changeset
171 char *buf = static_cast<char *> (malloc (max_size));
66ef74ee5d9f [project @ 1997-05-05 03:20:52 by jwe]
jwe
parents: 2847
diff changeset
172 char *bufptr = buf;
66ef74ee5d9f [project @ 1997-05-05 03:20:52 by jwe]
jwe
parents: 2847
diff changeset
173 int len = 0;
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 do
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 (fgets (bufptr, grow_size, f))
66ef74ee5d9f [project @ 1997-05-05 03:20:52 by jwe]
jwe
parents: 2847
diff changeset
178 {
66ef74ee5d9f [project @ 1997-05-05 03:20:52 by jwe]
jwe
parents: 2847
diff changeset
179 len = strlen (bufptr);
66ef74ee5d9f [project @ 1997-05-05 03:20:52 by jwe]
jwe
parents: 2847
diff changeset
180
66ef74ee5d9f [project @ 1997-05-05 03:20:52 by jwe]
jwe
parents: 2847
diff changeset
181 if (len == grow_size - 1)
66ef74ee5d9f [project @ 1997-05-05 03:20:52 by jwe]
jwe
parents: 2847
diff changeset
182 {
66ef74ee5d9f [project @ 1997-05-05 03:20:52 by jwe]
jwe
parents: 2847
diff changeset
183 int tmp = bufptr - buf + grow_size - 1;
66ef74ee5d9f [project @ 1997-05-05 03:20:52 by jwe]
jwe
parents: 2847
diff changeset
184 grow_size *= 2;
66ef74ee5d9f [project @ 1997-05-05 03:20:52 by jwe]
jwe
parents: 2847
diff changeset
185 max_size += grow_size;
66ef74ee5d9f [project @ 1997-05-05 03:20:52 by jwe]
jwe
parents: 2847
diff changeset
186 buf = static_cast<char *> (realloc (buf, max_size));
66ef74ee5d9f [project @ 1997-05-05 03:20:52 by jwe]
jwe
parents: 2847
diff changeset
187 bufptr = buf + tmp;
66ef74ee5d9f [project @ 1997-05-05 03:20:52 by jwe]
jwe
parents: 2847
diff changeset
188
66ef74ee5d9f [project @ 1997-05-05 03:20:52 by jwe]
jwe
parents: 2847
diff changeset
189 if (*(bufptr-1) == '\n')
66ef74ee5d9f [project @ 1997-05-05 03:20:52 by jwe]
jwe
parents: 2847
diff changeset
190 {
66ef74ee5d9f [project @ 1997-05-05 03:20:52 by jwe]
jwe
parents: 2847
diff changeset
191 *bufptr = '\0';
66ef74ee5d9f [project @ 1997-05-05 03:20:52 by jwe]
jwe
parents: 2847
diff changeset
192 retval = buf;
66ef74ee5d9f [project @ 1997-05-05 03:20:52 by jwe]
jwe
parents: 2847
diff changeset
193 }
66ef74ee5d9f [project @ 1997-05-05 03:20:52 by jwe]
jwe
parents: 2847
diff changeset
194 }
66ef74ee5d9f [project @ 1997-05-05 03:20:52 by jwe]
jwe
parents: 2847
diff changeset
195 else if (bufptr[len-1] != '\n')
66ef74ee5d9f [project @ 1997-05-05 03:20:52 by jwe]
jwe
parents: 2847
diff changeset
196 {
66ef74ee5d9f [project @ 1997-05-05 03:20:52 by jwe]
jwe
parents: 2847
diff changeset
197 bufptr[len++] = '\n';
66ef74ee5d9f [project @ 1997-05-05 03:20:52 by jwe]
jwe
parents: 2847
diff changeset
198 bufptr[len] = '\0';
66ef74ee5d9f [project @ 1997-05-05 03:20:52 by jwe]
jwe
parents: 2847
diff changeset
199 retval = buf;
66ef74ee5d9f [project @ 1997-05-05 03:20:52 by jwe]
jwe
parents: 2847
diff changeset
200 }
66ef74ee5d9f [project @ 1997-05-05 03:20:52 by jwe]
jwe
parents: 2847
diff changeset
201 else
66ef74ee5d9f [project @ 1997-05-05 03:20:52 by jwe]
jwe
parents: 2847
diff changeset
202 retval = buf;
66ef74ee5d9f [project @ 1997-05-05 03:20:52 by jwe]
jwe
parents: 2847
diff changeset
203 }
66ef74ee5d9f [project @ 1997-05-05 03:20:52 by jwe]
jwe
parents: 2847
diff changeset
204 else
66ef74ee5d9f [project @ 1997-05-05 03:20:52 by jwe]
jwe
parents: 2847
diff changeset
205 {
66ef74ee5d9f [project @ 1997-05-05 03:20:52 by jwe]
jwe
parents: 2847
diff changeset
206 if (len == 0)
66ef74ee5d9f [project @ 1997-05-05 03:20:52 by jwe]
jwe
parents: 2847
diff changeset
207 {
4527
c0a23a13eea2 [project @ 2003-10-03 02:52:46 by jwe]
jwe
parents: 4130
diff changeset
208 eof = true;
c0a23a13eea2 [project @ 2003-10-03 02:52:46 by jwe]
jwe
parents: 4130
diff changeset
209
2926
66ef74ee5d9f [project @ 1997-05-05 03:20:52 by jwe]
jwe
parents: 2847
diff changeset
210 free (buf);
66ef74ee5d9f [project @ 1997-05-05 03:20:52 by jwe]
jwe
parents: 2847
diff changeset
211
66ef74ee5d9f [project @ 1997-05-05 03:20:52 by jwe]
jwe
parents: 2847
diff changeset
212 buf = 0;
66ef74ee5d9f [project @ 1997-05-05 03:20:52 by jwe]
jwe
parents: 2847
diff changeset
213 }
66ef74ee5d9f [project @ 1997-05-05 03:20:52 by jwe]
jwe
parents: 2847
diff changeset
214
66ef74ee5d9f [project @ 1997-05-05 03:20:52 by jwe]
jwe
parents: 2847
diff changeset
215 break;
66ef74ee5d9f [project @ 1997-05-05 03:20:52 by jwe]
jwe
parents: 2847
diff changeset
216 }
66ef74ee5d9f [project @ 1997-05-05 03:20:52 by jwe]
jwe
parents: 2847
diff changeset
217 }
66ef74ee5d9f [project @ 1997-05-05 03:20:52 by jwe]
jwe
parents: 2847
diff changeset
218 while (retval.empty ());
66ef74ee5d9f [project @ 1997-05-05 03:20:52 by jwe]
jwe
parents: 2847
diff changeset
219
66ef74ee5d9f [project @ 1997-05-05 03:20:52 by jwe]
jwe
parents: 2847
diff changeset
220 if (buf)
66ef74ee5d9f [project @ 1997-05-05 03:20:52 by jwe]
jwe
parents: 2847
diff changeset
221 free (buf);
66ef74ee5d9f [project @ 1997-05-05 03:20:52 by jwe]
jwe
parents: 2847
diff changeset
222
10068
ca93f583573d handle interrupts octave_fgets
Jaroslav Hajek <highegg@gmail.com>
parents: 9469
diff changeset
223 OCTAVE_QUIT;
ca93f583573d handle interrupts octave_fgets
Jaroslav Hajek <highegg@gmail.com>
parents: 9469
diff changeset
224
2926
66ef74ee5d9f [project @ 1997-05-05 03:20:52 by jwe]
jwe
parents: 2847
diff changeset
225 return retval;
66ef74ee5d9f [project @ 1997-05-05 03:20:52 by jwe]
jwe
parents: 2847
diff changeset
226 }
66ef74ee5d9f [project @ 1997-05-05 03:20:52 by jwe]
jwe
parents: 2847
diff changeset
227
3970
4f884e25aab9 [project @ 2002-07-02 04:14:35 by jwe]
jwe
parents: 3504
diff changeset
228 std::string
4f884e25aab9 [project @ 2002-07-02 04:14:35 by jwe]
jwe
parents: 3504
diff changeset
229 octave_fgetl (FILE *f)
4f884e25aab9 [project @ 2002-07-02 04:14:35 by jwe]
jwe
parents: 3504
diff changeset
230 {
4527
c0a23a13eea2 [project @ 2003-10-03 02:52:46 by jwe]
jwe
parents: 4130
diff changeset
231 bool eof;
c0a23a13eea2 [project @ 2003-10-03 02:52:46 by jwe]
jwe
parents: 4130
diff changeset
232 return octave_fgetl (f, eof);
c0a23a13eea2 [project @ 2003-10-03 02:52:46 by jwe]
jwe
parents: 4130
diff changeset
233 }
c0a23a13eea2 [project @ 2003-10-03 02:52:46 by jwe]
jwe
parents: 4130
diff changeset
234
c0a23a13eea2 [project @ 2003-10-03 02:52:46 by jwe]
jwe
parents: 4130
diff changeset
235 std::string
c0a23a13eea2 [project @ 2003-10-03 02:52:46 by jwe]
jwe
parents: 4130
diff changeset
236 octave_fgetl (FILE *f, bool& eof)
c0a23a13eea2 [project @ 2003-10-03 02:52:46 by jwe]
jwe
parents: 4130
diff changeset
237 {
c0a23a13eea2 [project @ 2003-10-03 02:52:46 by jwe]
jwe
parents: 4130
diff changeset
238 std::string retval = octave_fgets (f, eof);
3970
4f884e25aab9 [project @ 2002-07-02 04:14:35 by jwe]
jwe
parents: 3504
diff changeset
239
4f884e25aab9 [project @ 2002-07-02 04:14:35 by jwe]
jwe
parents: 3504
diff changeset
240 size_t len = retval.length ();
4f884e25aab9 [project @ 2002-07-02 04:14:35 by jwe]
jwe
parents: 3504
diff changeset
241
4f884e25aab9 [project @ 2002-07-02 04:14:35 by jwe]
jwe
parents: 3504
diff changeset
242 if (retval[len-1] == '\n')
4f884e25aab9 [project @ 2002-07-02 04:14:35 by jwe]
jwe
parents: 3504
diff changeset
243 retval.resize (len-1);
4f884e25aab9 [project @ 2002-07-02 04:14:35 by jwe]
jwe
parents: 3504
diff changeset
244
4f884e25aab9 [project @ 2002-07-02 04:14:35 by jwe]
jwe
parents: 3504
diff changeset
245 return retval;
4f884e25aab9 [project @ 2002-07-02 04:14:35 by jwe]
jwe
parents: 3504
diff changeset
246 }
4f884e25aab9 [project @ 2002-07-02 04:14:35 by jwe]
jwe
parents: 3504
diff changeset
247
4130
7d9bda865012 [project @ 2002-10-28 21:05:30 by jwe]
jwe
parents: 3970
diff changeset
248 static inline double
6194
0d2ff0dfb159 [project @ 2006-12-01 05:25:38 by jwe]
jwe
parents: 5775
diff changeset
249 read_inf_nan_na (std::istream& is, char c, char sign = '+')
4130
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 double d = 0.0;
7d9bda865012 [project @ 2002-10-28 21:05:30 by jwe]
jwe
parents: 3970
diff changeset
252
7d9bda865012 [project @ 2002-10-28 21:05:30 by jwe]
jwe
parents: 3970
diff changeset
253 switch (c)
7d9bda865012 [project @ 2002-10-28 21:05:30 by jwe]
jwe
parents: 3970
diff changeset
254 {
7d9bda865012 [project @ 2002-10-28 21:05:30 by jwe]
jwe
parents: 3970
diff changeset
255 case 'i': case 'I':
7d9bda865012 [project @ 2002-10-28 21:05:30 by jwe]
jwe
parents: 3970
diff changeset
256 {
6897
935d23e16951 [project @ 2007-09-13 19:13:56 by jwe]
jwe
parents: 6490
diff changeset
257 c = is.get ();
4130
7d9bda865012 [project @ 2002-10-28 21:05:30 by jwe]
jwe
parents: 3970
diff changeset
258 if (c == 'n' || c == 'N')
7d9bda865012 [project @ 2002-10-28 21:05:30 by jwe]
jwe
parents: 3970
diff changeset
259 {
6897
935d23e16951 [project @ 2007-09-13 19:13:56 by jwe]
jwe
parents: 6490
diff changeset
260 c = is.get ();
4130
7d9bda865012 [project @ 2002-10-28 21:05:30 by jwe]
jwe
parents: 3970
diff changeset
261 if (c == 'f' || c == 'F')
6194
0d2ff0dfb159 [project @ 2006-12-01 05:25:38 by jwe]
jwe
parents: 5775
diff changeset
262 d = sign == '-' ? -octave_Inf : octave_Inf;
4130
7d9bda865012 [project @ 2002-10-28 21:05:30 by jwe]
jwe
parents: 3970
diff changeset
263 else
7d9bda865012 [project @ 2002-10-28 21:05:30 by jwe]
jwe
parents: 3970
diff changeset
264 is.putback (c);
7d9bda865012 [project @ 2002-10-28 21:05:30 by jwe]
jwe
parents: 3970
diff changeset
265 }
7d9bda865012 [project @ 2002-10-28 21:05:30 by jwe]
jwe
parents: 3970
diff changeset
266 else
7d9bda865012 [project @ 2002-10-28 21:05:30 by jwe]
jwe
parents: 3970
diff changeset
267 is.putback (c);
7d9bda865012 [project @ 2002-10-28 21:05:30 by jwe]
jwe
parents: 3970
diff changeset
268 }
7d9bda865012 [project @ 2002-10-28 21:05:30 by jwe]
jwe
parents: 3970
diff changeset
269 break;
7d9bda865012 [project @ 2002-10-28 21:05:30 by jwe]
jwe
parents: 3970
diff changeset
270
7d9bda865012 [project @ 2002-10-28 21:05:30 by jwe]
jwe
parents: 3970
diff changeset
271 case 'n': case 'N':
7d9bda865012 [project @ 2002-10-28 21:05:30 by jwe]
jwe
parents: 3970
diff changeset
272 {
6897
935d23e16951 [project @ 2007-09-13 19:13:56 by jwe]
jwe
parents: 6490
diff changeset
273 c = is.get ();
4130
7d9bda865012 [project @ 2002-10-28 21:05:30 by jwe]
jwe
parents: 3970
diff changeset
274 if (c == 'a' || c == 'A')
7d9bda865012 [project @ 2002-10-28 21:05:30 by jwe]
jwe
parents: 3970
diff changeset
275 {
6897
935d23e16951 [project @ 2007-09-13 19:13:56 by jwe]
jwe
parents: 6490
diff changeset
276 c = is.get ();
4130
7d9bda865012 [project @ 2002-10-28 21:05:30 by jwe]
jwe
parents: 3970
diff changeset
277 if (c == 'n' || c == 'N')
7d9bda865012 [project @ 2002-10-28 21:05:30 by jwe]
jwe
parents: 3970
diff changeset
278 d = octave_NaN;
7d9bda865012 [project @ 2002-10-28 21:05:30 by jwe]
jwe
parents: 3970
diff changeset
279 else
7d9bda865012 [project @ 2002-10-28 21:05:30 by jwe]
jwe
parents: 3970
diff changeset
280 {
7d9bda865012 [project @ 2002-10-28 21:05:30 by jwe]
jwe
parents: 3970
diff changeset
281 is.putback (c);
7d9bda865012 [project @ 2002-10-28 21:05:30 by jwe]
jwe
parents: 3970
diff changeset
282 d = octave_NA;
7d9bda865012 [project @ 2002-10-28 21:05:30 by jwe]
jwe
parents: 3970
diff changeset
283 }
7d9bda865012 [project @ 2002-10-28 21:05:30 by jwe]
jwe
parents: 3970
diff changeset
284 }
7d9bda865012 [project @ 2002-10-28 21:05:30 by jwe]
jwe
parents: 3970
diff changeset
285 else
7d9bda865012 [project @ 2002-10-28 21:05:30 by jwe]
jwe
parents: 3970
diff changeset
286 is.putback (c);
7d9bda865012 [project @ 2002-10-28 21:05:30 by jwe]
jwe
parents: 3970
diff changeset
287 }
7d9bda865012 [project @ 2002-10-28 21:05:30 by jwe]
jwe
parents: 3970
diff changeset
288 break;
7d9bda865012 [project @ 2002-10-28 21:05:30 by jwe]
jwe
parents: 3970
diff changeset
289
7d9bda865012 [project @ 2002-10-28 21:05:30 by jwe]
jwe
parents: 3970
diff changeset
290 default:
7d9bda865012 [project @ 2002-10-28 21:05:30 by jwe]
jwe
parents: 3970
diff changeset
291 abort ();
7d9bda865012 [project @ 2002-10-28 21:05:30 by jwe]
jwe
parents: 3970
diff changeset
292 }
7d9bda865012 [project @ 2002-10-28 21:05:30 by jwe]
jwe
parents: 3970
diff changeset
293
7d9bda865012 [project @ 2002-10-28 21:05:30 by jwe]
jwe
parents: 3970
diff changeset
294 return d;
7d9bda865012 [project @ 2002-10-28 21:05:30 by jwe]
jwe
parents: 3970
diff changeset
295 }
7d9bda865012 [project @ 2002-10-28 21:05:30 by jwe]
jwe
parents: 3970
diff changeset
296
9469
c6edba80dfae sanity checks for loading sparse matrices
John W. Eaton <jwe@octave.org>
parents: 8920
diff changeset
297 template <>
4130
7d9bda865012 [project @ 2002-10-28 21:05:30 by jwe]
jwe
parents: 3970
diff changeset
298 double
9469
c6edba80dfae sanity checks for loading sparse matrices
John W. Eaton <jwe@octave.org>
parents: 8920
diff changeset
299 octave_read_value (std::istream& is)
4130
7d9bda865012 [project @ 2002-10-28 21:05:30 by jwe]
jwe
parents: 3970
diff changeset
300 {
7d9bda865012 [project @ 2002-10-28 21:05:30 by jwe]
jwe
parents: 3970
diff changeset
301 double d = 0.0;
7d9bda865012 [project @ 2002-10-28 21:05:30 by jwe]
jwe
parents: 3970
diff changeset
302
6907
c8081f4c094f [project @ 2007-09-17 17:31:10 by jwe]
jwe
parents: 6897
diff changeset
303 char c1 = ' ';
4130
7d9bda865012 [project @ 2002-10-28 21:05:30 by jwe]
jwe
parents: 3970
diff changeset
304
6907
c8081f4c094f [project @ 2007-09-17 17:31:10 by jwe]
jwe
parents: 6897
diff changeset
305 while (isspace (c1))
c8081f4c094f [project @ 2007-09-17 17:31:10 by jwe]
jwe
parents: 6897
diff changeset
306 c1 = is.get ();
c8081f4c094f [project @ 2007-09-17 17:31:10 by jwe]
jwe
parents: 6897
diff changeset
307
6194
0d2ff0dfb159 [project @ 2006-12-01 05:25:38 by jwe]
jwe
parents: 5775
diff changeset
308 switch (c1)
4130
7d9bda865012 [project @ 2002-10-28 21:05:30 by jwe]
jwe
parents: 3970
diff changeset
309 {
6194
0d2ff0dfb159 [project @ 2006-12-01 05:25:38 by jwe]
jwe
parents: 5775
diff changeset
310 case '-':
0d2ff0dfb159 [project @ 2006-12-01 05:25:38 by jwe]
jwe
parents: 5775
diff changeset
311 {
0d2ff0dfb159 [project @ 2006-12-01 05:25:38 by jwe]
jwe
parents: 5775
diff changeset
312 char c2 = 0;
6897
935d23e16951 [project @ 2007-09-13 19:13:56 by jwe]
jwe
parents: 6490
diff changeset
313 c2 = is.get ();
6194
0d2ff0dfb159 [project @ 2006-12-01 05:25:38 by jwe]
jwe
parents: 5775
diff changeset
314 if (c2 == 'i' || c2 == 'I')
0d2ff0dfb159 [project @ 2006-12-01 05:25:38 by jwe]
jwe
parents: 5775
diff changeset
315 d = read_inf_nan_na (is, c2, c1);
0d2ff0dfb159 [project @ 2006-12-01 05:25:38 by jwe]
jwe
parents: 5775
diff changeset
316 else
0d2ff0dfb159 [project @ 2006-12-01 05:25:38 by jwe]
jwe
parents: 5775
diff changeset
317 {
0d2ff0dfb159 [project @ 2006-12-01 05:25:38 by jwe]
jwe
parents: 5775
diff changeset
318 is.putback (c2);
0d2ff0dfb159 [project @ 2006-12-01 05:25:38 by jwe]
jwe
parents: 5775
diff changeset
319 is.putback (c1);
6202
e5ed0d1edddc [project @ 2006-12-05 21:49:44 by jwe]
jwe
parents: 6194
diff changeset
320 is >> d;
6194
0d2ff0dfb159 [project @ 2006-12-01 05:25:38 by jwe]
jwe
parents: 5775
diff changeset
321 }
0d2ff0dfb159 [project @ 2006-12-01 05:25:38 by jwe]
jwe
parents: 5775
diff changeset
322 }
0d2ff0dfb159 [project @ 2006-12-01 05:25:38 by jwe]
jwe
parents: 5775
diff changeset
323 break;
0d2ff0dfb159 [project @ 2006-12-01 05:25:38 by jwe]
jwe
parents: 5775
diff changeset
324
0d2ff0dfb159 [project @ 2006-12-01 05:25:38 by jwe]
jwe
parents: 5775
diff changeset
325 case '+':
0d2ff0dfb159 [project @ 2006-12-01 05:25:38 by jwe]
jwe
parents: 5775
diff changeset
326 {
0d2ff0dfb159 [project @ 2006-12-01 05:25:38 by jwe]
jwe
parents: 5775
diff changeset
327 char c2 = 0;
6897
935d23e16951 [project @ 2007-09-13 19:13:56 by jwe]
jwe
parents: 6490
diff changeset
328 c2 = is.get ();
6194
0d2ff0dfb159 [project @ 2006-12-01 05:25:38 by jwe]
jwe
parents: 5775
diff changeset
329 if (c2 == 'i' || c2 == 'I')
0d2ff0dfb159 [project @ 2006-12-01 05:25:38 by jwe]
jwe
parents: 5775
diff changeset
330 d = read_inf_nan_na (is, c2, c1);
0d2ff0dfb159 [project @ 2006-12-01 05:25:38 by jwe]
jwe
parents: 5775
diff changeset
331 else
0d2ff0dfb159 [project @ 2006-12-01 05:25:38 by jwe]
jwe
parents: 5775
diff changeset
332 {
0d2ff0dfb159 [project @ 2006-12-01 05:25:38 by jwe]
jwe
parents: 5775
diff changeset
333 is.putback (c2);
0d2ff0dfb159 [project @ 2006-12-01 05:25:38 by jwe]
jwe
parents: 5775
diff changeset
334 is.putback (c1);
6202
e5ed0d1edddc [project @ 2006-12-05 21:49:44 by jwe]
jwe
parents: 6194
diff changeset
335 is >> d;
6194
0d2ff0dfb159 [project @ 2006-12-01 05:25:38 by jwe]
jwe
parents: 5775
diff changeset
336 }
0d2ff0dfb159 [project @ 2006-12-01 05:25:38 by jwe]
jwe
parents: 5775
diff changeset
337 }
0d2ff0dfb159 [project @ 2006-12-01 05:25:38 by jwe]
jwe
parents: 5775
diff changeset
338 break;
0d2ff0dfb159 [project @ 2006-12-01 05:25:38 by jwe]
jwe
parents: 5775
diff changeset
339
4130
7d9bda865012 [project @ 2002-10-28 21:05:30 by jwe]
jwe
parents: 3970
diff changeset
340 case 'i': case 'I':
7d9bda865012 [project @ 2002-10-28 21:05:30 by jwe]
jwe
parents: 3970
diff changeset
341 case 'n': case 'N':
6194
0d2ff0dfb159 [project @ 2006-12-01 05:25:38 by jwe]
jwe
parents: 5775
diff changeset
342 d = read_inf_nan_na (is, c1);
4130
7d9bda865012 [project @ 2002-10-28 21:05:30 by jwe]
jwe
parents: 3970
diff changeset
343 break;
7d9bda865012 [project @ 2002-10-28 21:05:30 by jwe]
jwe
parents: 3970
diff changeset
344
7d9bda865012 [project @ 2002-10-28 21:05:30 by jwe]
jwe
parents: 3970
diff changeset
345 default:
6194
0d2ff0dfb159 [project @ 2006-12-01 05:25:38 by jwe]
jwe
parents: 5775
diff changeset
346 is.putback (c1);
4130
7d9bda865012 [project @ 2002-10-28 21:05:30 by jwe]
jwe
parents: 3970
diff changeset
347 is >> d;
7d9bda865012 [project @ 2002-10-28 21:05:30 by jwe]
jwe
parents: 3970
diff changeset
348 }
7d9bda865012 [project @ 2002-10-28 21:05:30 by jwe]
jwe
parents: 3970
diff changeset
349
7d9bda865012 [project @ 2002-10-28 21:05:30 by jwe]
jwe
parents: 3970
diff changeset
350 return d;
7d9bda865012 [project @ 2002-10-28 21:05:30 by jwe]
jwe
parents: 3970
diff changeset
351 }
7d9bda865012 [project @ 2002-10-28 21:05:30 by jwe]
jwe
parents: 3970
diff changeset
352
9469
c6edba80dfae sanity checks for loading sparse matrices
John W. Eaton <jwe@octave.org>
parents: 8920
diff changeset
353 template <>
4130
7d9bda865012 [project @ 2002-10-28 21:05:30 by jwe]
jwe
parents: 3970
diff changeset
354 Complex
9469
c6edba80dfae sanity checks for loading sparse matrices
John W. Eaton <jwe@octave.org>
parents: 8920
diff changeset
355 octave_read_value (std::istream& is)
4130
7d9bda865012 [project @ 2002-10-28 21:05:30 by jwe]
jwe
parents: 3970
diff changeset
356 {
7d9bda865012 [project @ 2002-10-28 21:05:30 by jwe]
jwe
parents: 3970
diff changeset
357 double re = 0.0, im = 0.0;
7d9bda865012 [project @ 2002-10-28 21:05:30 by jwe]
jwe
parents: 3970
diff changeset
358
7d9bda865012 [project @ 2002-10-28 21:05:30 by jwe]
jwe
parents: 3970
diff changeset
359 Complex cx = 0.0;
7d9bda865012 [project @ 2002-10-28 21:05:30 by jwe]
jwe
parents: 3970
diff changeset
360
6907
c8081f4c094f [project @ 2007-09-17 17:31:10 by jwe]
jwe
parents: 6897
diff changeset
361 char ch = ' ';
4130
7d9bda865012 [project @ 2002-10-28 21:05:30 by jwe]
jwe
parents: 3970
diff changeset
362
6907
c8081f4c094f [project @ 2007-09-17 17:31:10 by jwe]
jwe
parents: 6897
diff changeset
363 while (isspace (ch))
c8081f4c094f [project @ 2007-09-17 17:31:10 by jwe]
jwe
parents: 6897
diff changeset
364 ch = is.get ();
4130
7d9bda865012 [project @ 2002-10-28 21:05:30 by jwe]
jwe
parents: 3970
diff changeset
365
7d9bda865012 [project @ 2002-10-28 21:05:30 by jwe]
jwe
parents: 3970
diff changeset
366 if (ch == '(')
7d9bda865012 [project @ 2002-10-28 21:05:30 by jwe]
jwe
parents: 3970
diff changeset
367 {
9469
c6edba80dfae sanity checks for loading sparse matrices
John W. Eaton <jwe@octave.org>
parents: 8920
diff changeset
368 re = octave_read_value<double> (is);
6897
935d23e16951 [project @ 2007-09-13 19:13:56 by jwe]
jwe
parents: 6490
diff changeset
369 ch = is.get ();
4130
7d9bda865012 [project @ 2002-10-28 21:05:30 by jwe]
jwe
parents: 3970
diff changeset
370
7d9bda865012 [project @ 2002-10-28 21:05:30 by jwe]
jwe
parents: 3970
diff changeset
371 if (ch == ',')
7d9bda865012 [project @ 2002-10-28 21:05:30 by jwe]
jwe
parents: 3970
diff changeset
372 {
9469
c6edba80dfae sanity checks for loading sparse matrices
John W. Eaton <jwe@octave.org>
parents: 8920
diff changeset
373 im = octave_read_value<double> (is);
6897
935d23e16951 [project @ 2007-09-13 19:13:56 by jwe]
jwe
parents: 6490
diff changeset
374 ch = is.get ();
4130
7d9bda865012 [project @ 2002-10-28 21:05:30 by jwe]
jwe
parents: 3970
diff changeset
375
7d9bda865012 [project @ 2002-10-28 21:05:30 by jwe]
jwe
parents: 3970
diff changeset
376 if (ch == ')')
7d9bda865012 [project @ 2002-10-28 21:05:30 by jwe]
jwe
parents: 3970
diff changeset
377 cx = Complex (re, im);
7d9bda865012 [project @ 2002-10-28 21:05:30 by jwe]
jwe
parents: 3970
diff changeset
378 else
7d9bda865012 [project @ 2002-10-28 21:05:30 by jwe]
jwe
parents: 3970
diff changeset
379 is.setstate (std::ios::failbit);
7d9bda865012 [project @ 2002-10-28 21:05:30 by jwe]
jwe
parents: 3970
diff changeset
380 }
7d9bda865012 [project @ 2002-10-28 21:05:30 by jwe]
jwe
parents: 3970
diff changeset
381 else if (ch == ')')
7d9bda865012 [project @ 2002-10-28 21:05:30 by jwe]
jwe
parents: 3970
diff changeset
382 cx = re;
7d9bda865012 [project @ 2002-10-28 21:05:30 by jwe]
jwe
parents: 3970
diff changeset
383 else
7d9bda865012 [project @ 2002-10-28 21:05:30 by jwe]
jwe
parents: 3970
diff changeset
384 is.setstate (std::ios::failbit);
7d9bda865012 [project @ 2002-10-28 21:05:30 by jwe]
jwe
parents: 3970
diff changeset
385 }
7d9bda865012 [project @ 2002-10-28 21:05:30 by jwe]
jwe
parents: 3970
diff changeset
386 else
7d9bda865012 [project @ 2002-10-28 21:05:30 by jwe]
jwe
parents: 3970
diff changeset
387 {
7d9bda865012 [project @ 2002-10-28 21:05:30 by jwe]
jwe
parents: 3970
diff changeset
388 is.putback (ch);
9469
c6edba80dfae sanity checks for loading sparse matrices
John W. Eaton <jwe@octave.org>
parents: 8920
diff changeset
389 cx = octave_read_value<double> (is);
4130
7d9bda865012 [project @ 2002-10-28 21:05:30 by jwe]
jwe
parents: 3970
diff changeset
390 }
7d9bda865012 [project @ 2002-10-28 21:05:30 by jwe]
jwe
parents: 3970
diff changeset
391
7d9bda865012 [project @ 2002-10-28 21:05:30 by jwe]
jwe
parents: 3970
diff changeset
392 return cx;
7d9bda865012 [project @ 2002-10-28 21:05:30 by jwe]
jwe
parents: 3970
diff changeset
393
7d9bda865012 [project @ 2002-10-28 21:05:30 by jwe]
jwe
parents: 3970
diff changeset
394 }
7d9bda865012 [project @ 2002-10-28 21:05:30 by jwe]
jwe
parents: 3970
diff changeset
395
7789
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7048
diff changeset
396 static inline float
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7048
diff changeset
397 read_float_inf_nan_na (std::istream& is, char c, char sign = '+')
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7048
diff changeset
398 {
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7048
diff changeset
399 float d = 0.0;
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7048
diff changeset
400
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7048
diff changeset
401 switch (c)
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7048
diff changeset
402 {
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7048
diff changeset
403 case 'i': case 'I':
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7048
diff changeset
404 {
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7048
diff changeset
405 c = is.get ();
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7048
diff changeset
406 if (c == 'n' || c == 'N')
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7048
diff changeset
407 {
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7048
diff changeset
408 c = is.get ();
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7048
diff changeset
409 if (c == 'f' || c == 'F')
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7048
diff changeset
410 d = sign == '-' ? -octave_Inf : octave_Inf;
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7048
diff changeset
411 else
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7048
diff changeset
412 is.putback (c);
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7048
diff changeset
413 }
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7048
diff changeset
414 else
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7048
diff changeset
415 is.putback (c);
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7048
diff changeset
416 }
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7048
diff changeset
417 break;
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7048
diff changeset
418
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7048
diff changeset
419 case 'n': case 'N':
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 c = is.get ();
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7048
diff changeset
422 if (c == 'a' || c == 'A')
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 c = is.get ();
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7048
diff changeset
425 if (c == 'n' || c == 'N')
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7048
diff changeset
426 d = octave_NaN;
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7048
diff changeset
427 else
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7048
diff changeset
428 {
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7048
diff changeset
429 is.putback (c);
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7048
diff changeset
430 d = octave_NA;
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7048
diff changeset
431 }
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7048
diff changeset
432 }
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7048
diff changeset
433 else
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7048
diff changeset
434 is.putback (c);
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7048
diff changeset
435 }
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7048
diff changeset
436 break;
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7048
diff changeset
437
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7048
diff changeset
438 default:
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7048
diff changeset
439 abort ();
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7048
diff changeset
440 }
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7048
diff changeset
441
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7048
diff changeset
442 return d;
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7048
diff changeset
443 }
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7048
diff changeset
444
9469
c6edba80dfae sanity checks for loading sparse matrices
John W. Eaton <jwe@octave.org>
parents: 8920
diff changeset
445 template <>
7789
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7048
diff changeset
446 float
9469
c6edba80dfae sanity checks for loading sparse matrices
John W. Eaton <jwe@octave.org>
parents: 8920
diff changeset
447 octave_read_value (std::istream& is)
7789
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7048
diff changeset
448 {
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7048
diff changeset
449 float d = 0.0;
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7048
diff changeset
450
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7048
diff changeset
451 char c1 = ' ';
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7048
diff changeset
452
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7048
diff changeset
453 while (isspace (c1))
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7048
diff changeset
454 c1 = is.get ();
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7048
diff changeset
455
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7048
diff changeset
456 switch (c1)
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7048
diff changeset
457 {
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7048
diff changeset
458 case '-':
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7048
diff changeset
459 {
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7048
diff changeset
460 char c2 = 0;
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7048
diff changeset
461 c2 = is.get ();
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7048
diff changeset
462 if (c2 == 'i' || c2 == 'I')
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7048
diff changeset
463 d = read_float_inf_nan_na (is, c2, c1);
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7048
diff changeset
464 else
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7048
diff changeset
465 {
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7048
diff changeset
466 is.putback (c2);
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7048
diff changeset
467 is.putback (c1);
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7048
diff changeset
468 is >> d;
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7048
diff changeset
469 }
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7048
diff changeset
470 }
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7048
diff changeset
471 break;
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7048
diff changeset
472
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7048
diff changeset
473 case '+':
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7048
diff changeset
474 {
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7048
diff changeset
475 char c2 = 0;
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7048
diff changeset
476 c2 = is.get ();
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7048
diff changeset
477 if (c2 == 'i' || c2 == 'I')
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7048
diff changeset
478 d = read_float_inf_nan_na (is, c2, c1);
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7048
diff changeset
479 else
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7048
diff changeset
480 {
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7048
diff changeset
481 is.putback (c2);
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7048
diff changeset
482 is.putback (c1);
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7048
diff changeset
483 is >> d;
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7048
diff changeset
484 }
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7048
diff changeset
485 }
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7048
diff changeset
486 break;
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7048
diff changeset
487
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7048
diff changeset
488 case 'i': case 'I':
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7048
diff changeset
489 case 'n': case 'N':
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7048
diff changeset
490 d = read_float_inf_nan_na (is, c1);
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7048
diff changeset
491 break;
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7048
diff changeset
492
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7048
diff changeset
493 default:
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7048
diff changeset
494 is.putback (c1);
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7048
diff changeset
495 is >> d;
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7048
diff changeset
496 }
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7048
diff changeset
497
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7048
diff changeset
498 return d;
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7048
diff changeset
499 }
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7048
diff changeset
500
9469
c6edba80dfae sanity checks for loading sparse matrices
John W. Eaton <jwe@octave.org>
parents: 8920
diff changeset
501 template <>
7789
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7048
diff changeset
502 FloatComplex
9469
c6edba80dfae sanity checks for loading sparse matrices
John W. Eaton <jwe@octave.org>
parents: 8920
diff changeset
503 octave_read_value (std::istream& is)
7789
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7048
diff changeset
504 {
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7048
diff changeset
505 float re = 0.0, im = 0.0;
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7048
diff changeset
506
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7048
diff changeset
507 FloatComplex cx = 0.0;
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7048
diff changeset
508
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7048
diff changeset
509 char ch = ' ';
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7048
diff changeset
510
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7048
diff changeset
511 while (isspace (ch))
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7048
diff changeset
512 ch = is.get ();
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7048
diff changeset
513
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7048
diff changeset
514 if (ch == '(')
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7048
diff changeset
515 {
9469
c6edba80dfae sanity checks for loading sparse matrices
John W. Eaton <jwe@octave.org>
parents: 8920
diff changeset
516 re = octave_read_value<float> (is);
7789
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7048
diff changeset
517 ch = is.get ();
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7048
diff changeset
518
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7048
diff changeset
519 if (ch == ',')
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7048
diff changeset
520 {
9469
c6edba80dfae sanity checks for loading sparse matrices
John W. Eaton <jwe@octave.org>
parents: 8920
diff changeset
521 im = octave_read_value<float> (is);
7789
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7048
diff changeset
522 ch = is.get ();
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7048
diff changeset
523
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7048
diff changeset
524 if (ch == ')')
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7048
diff changeset
525 cx = FloatComplex (re, im);
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7048
diff changeset
526 else
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7048
diff changeset
527 is.setstate (std::ios::failbit);
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7048
diff changeset
528 }
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7048
diff changeset
529 else if (ch == ')')
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7048
diff changeset
530 cx = re;
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7048
diff changeset
531 else
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7048
diff changeset
532 is.setstate (std::ios::failbit);
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7048
diff changeset
533 }
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7048
diff changeset
534 else
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7048
diff changeset
535 {
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7048
diff changeset
536 is.putback (ch);
9469
c6edba80dfae sanity checks for loading sparse matrices
John W. Eaton <jwe@octave.org>
parents: 8920
diff changeset
537 cx = octave_read_value<float> (is);
7789
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7048
diff changeset
538 }
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7048
diff changeset
539
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7048
diff changeset
540 return cx;
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7048
diff changeset
541
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7048
diff changeset
542 }
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7048
diff changeset
543
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7048
diff changeset
544 void
9469
c6edba80dfae sanity checks for loading sparse matrices
John W. Eaton <jwe@octave.org>
parents: 8920
diff changeset
545 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
546 {
c6edba80dfae sanity checks for loading sparse matrices
John W. Eaton <jwe@octave.org>
parents: 8920
diff changeset
547 if (lo_ieee_is_NA (d))
c6edba80dfae sanity checks for loading sparse matrices
John W. Eaton <jwe@octave.org>
parents: 8920
diff changeset
548 os << "NA";
c6edba80dfae sanity checks for loading sparse matrices
John W. Eaton <jwe@octave.org>
parents: 8920
diff changeset
549 else if (lo_ieee_isnan (d))
c6edba80dfae sanity checks for loading sparse matrices
John W. Eaton <jwe@octave.org>
parents: 8920
diff changeset
550 os << "NaN";
c6edba80dfae sanity checks for loading sparse matrices
John W. Eaton <jwe@octave.org>
parents: 8920
diff changeset
551 else if (lo_ieee_isinf (d))
c6edba80dfae sanity checks for loading sparse matrices
John W. Eaton <jwe@octave.org>
parents: 8920
diff changeset
552 os << (d < 0 ? "-Inf" : "Inf");
c6edba80dfae sanity checks for loading sparse matrices
John W. Eaton <jwe@octave.org>
parents: 8920
diff changeset
553 else
c6edba80dfae sanity checks for loading sparse matrices
John W. Eaton <jwe@octave.org>
parents: 8920
diff changeset
554 os << d;
c6edba80dfae sanity checks for loading sparse matrices
John W. Eaton <jwe@octave.org>
parents: 8920
diff changeset
555 }
c6edba80dfae sanity checks for loading sparse matrices
John W. Eaton <jwe@octave.org>
parents: 8920
diff changeset
556
c6edba80dfae sanity checks for loading sparse matrices
John W. Eaton <jwe@octave.org>
parents: 8920
diff changeset
557 void
c6edba80dfae sanity checks for loading sparse matrices
John W. Eaton <jwe@octave.org>
parents: 8920
diff changeset
558 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
559 {
c6edba80dfae sanity checks for loading sparse matrices
John W. Eaton <jwe@octave.org>
parents: 8920
diff changeset
560 os << "(";
c6edba80dfae sanity checks for loading sparse matrices
John W. Eaton <jwe@octave.org>
parents: 8920
diff changeset
561 octave_write_double (os, real (c));
c6edba80dfae sanity checks for loading sparse matrices
John W. Eaton <jwe@octave.org>
parents: 8920
diff changeset
562 os << ",";
c6edba80dfae sanity checks for loading sparse matrices
John W. Eaton <jwe@octave.org>
parents: 8920
diff changeset
563 octave_write_double (os, imag (c));
c6edba80dfae sanity checks for loading sparse matrices
John W. Eaton <jwe@octave.org>
parents: 8920
diff changeset
564 os << ")";
c6edba80dfae sanity checks for loading sparse matrices
John W. Eaton <jwe@octave.org>
parents: 8920
diff changeset
565 }
c6edba80dfae sanity checks for loading sparse matrices
John W. Eaton <jwe@octave.org>
parents: 8920
diff changeset
566
c6edba80dfae sanity checks for loading sparse matrices
John W. Eaton <jwe@octave.org>
parents: 8920
diff changeset
567 void
7789
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7048
diff changeset
568 octave_write_float (std::ostream& os, float d)
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7048
diff changeset
569 {
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7048
diff changeset
570 if (lo_ieee_is_NA (d))
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7048
diff changeset
571 os << "NA";
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7048
diff changeset
572 else if (lo_ieee_isnan (d))
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7048
diff changeset
573 os << "NaN";
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7048
diff changeset
574 else if (lo_ieee_isinf (d))
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7048
diff changeset
575 os << (d < 0 ? "-Inf" : "Inf");
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7048
diff changeset
576 else
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7048
diff changeset
577 os << d;
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7048
diff changeset
578 }
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7048
diff changeset
579
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7048
diff changeset
580 void
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7048
diff changeset
581 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
582 {
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7048
diff changeset
583 os << "(";
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7048
diff changeset
584 octave_write_float (os, real (c));
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7048
diff changeset
585 os << ",";
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7048
diff changeset
586 octave_write_float (os, imag (c));
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7048
diff changeset
587 os << ")";
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7048
diff changeset
588 }
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7048
diff changeset
589
1967
4cb6aaa0f2c7 [project @ 1996-02-17 02:54:24 by jwe]
jwe
parents:
diff changeset
590 /*
4cb6aaa0f2c7 [project @ 1996-02-17 02:54:24 by jwe]
jwe
parents:
diff changeset
591 ;;; Local Variables: ***
4cb6aaa0f2c7 [project @ 1996-02-17 02:54:24 by jwe]
jwe
parents:
diff changeset
592 ;;; mode: C++ ***
4cb6aaa0f2c7 [project @ 1996-02-17 02:54:24 by jwe]
jwe
parents:
diff changeset
593 ;;; End: ***
4cb6aaa0f2c7 [project @ 1996-02-17 02:54:24 by jwe]
jwe
parents:
diff changeset
594 */