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1
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1 // sysdep.cc -*- C++ -*- |
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2 /* |
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3 |
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1009
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4 Copyright (C) 1993, 1994, 1995 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 2, or (at your option) any |
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11 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, write to the Free |
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1315
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20 Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
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21 |
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22 */ |
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23 |
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661
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24 /* |
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25 |
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26 The function gethostname was adapted from a similar function from GNU |
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27 Bash, the Bourne Again SHell, copyright (C) 1987, 1989, 1991 Free |
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28 Software Foundation, Inc. |
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29 |
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30 */ |
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31 |
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240
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32 #ifdef HAVE_CONFIG_H |
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1192
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33 #include <config.h> |
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1
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34 #endif |
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35 |
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1346
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36 #include <cfloat> |
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1343
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37 #include <cstddef> |
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1346
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38 #include <cstdio> |
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1343
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39 #include <cstdlib> |
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40 #include <cstring> |
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41 |
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1728
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42 #include <string> |
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43 |
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1742
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44 #include <iostream.h> |
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45 |
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1350
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46 #ifdef HAVE_UNISTD_H |
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529
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47 #include <sys/types.h> |
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48 #include <unistd.h> |
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49 #endif |
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1
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50 |
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1430
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51 #if defined (HAVE_TERMIOS_H) |
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52 #include <termios.h> |
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53 #elif defined (HAVE_TERMIO_H) |
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54 #include <termio.h> |
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55 #elif defined (HAVE_SGTTY_H) |
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56 #include <sgtty.h> |
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57 #else |
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58 LOSE! LOSE! |
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59 #endif |
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60 |
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1463
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61 #if defined (HAVE_FLOATINGPOINT_H) |
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62 #include <floatingpoint.h> |
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63 #endif |
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64 |
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65 #if !defined (HAVE_GETHOSTNAME) && defined (HAVE_SYS_UTSNAME_H) |
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66 #include <sys/utsname.h> |
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67 #endif |
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68 |
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69 #include <readline/readline.h> |
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1750
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70 #include <readline/tilde.h> |
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1463
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71 |
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72 extern char *term_clrpag; |
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73 extern "C" void _rl_output_character_function (); |
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74 |
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1769
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75 #include "oct-math.h" |
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76 |
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1352
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77 #include "defun.h" |
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78 #include "error.h" |
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1847
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79 #include "f77-fcn.h" |
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542
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80 #include "help.h" |
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529
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81 #include "input.h" |
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1742
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82 #include "mappers.h" |
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1755
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83 #include "oct-obj.h" |
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84 #include "pathlen.h" |
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85 #include "pt-const.h" |
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1352
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86 #include "sysdep.h" |
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1755
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87 #include "toplev.h" |
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529
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88 #include "utils.h" |
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89 |
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1463
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90 extern "C" double F77_FCN (d1mach, D1MACH) (const int&); |
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529
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91 |
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92 #ifndef STDIN_FILENO |
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93 #define STDIN_FILENO 1 |
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94 #endif |
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444
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95 |
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96 // Octave's idea of infinity. |
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97 double octave_Inf; |
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98 |
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99 // Octave's idea of not a number. |
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100 double octave_NaN; |
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101 |
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1226
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102 // The floating point format on this system. |
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103 floating_point_format native_float_format = OCTAVE_UNKNOWN_FLT_FMT; |
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104 |
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1415
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105 // Nonzero if the machine we are running on is big-endian. |
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106 int octave_words_big_endian; |
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107 |
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108 #ifdef NeXT |
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109 extern "C" |
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110 { |
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111 typedef void (*_cplus_fcn_int) (int); |
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112 extern void (*malloc_error (_cplus_fcn_int)) (int); |
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113 } |
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114 |
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115 static void |
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116 malloc_handler (int code) |
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117 { |
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118 if (code == 5) |
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217
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119 warning ("hopefully recoverable malloc error: freeing wild pointer"); |
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120 else |
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121 { |
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122 panic ("probably irrecoverable malloc error: code %d", code); |
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123 } |
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124 } |
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125 |
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126 static void |
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127 NeXT_init (void) |
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128 { |
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129 malloc_error (malloc_handler); |
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130 } |
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131 #endif |
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132 |
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1226
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133 union equiv |
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134 { |
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135 double d; |
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136 int i[2]; |
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137 }; |
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138 |
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139 struct float_params |
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140 { |
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141 floating_point_format fp_fmt; |
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142 equiv fp_par[4]; |
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143 }; |
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144 |
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145 #define INIT_FLT_PAR(fp, fmt, sm1, sm2, lrg1, lrg2, rt1, rt2, dv1, dv2) \ |
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146 do \ |
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147 { \ |
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148 fp.fp_fmt = (fmt); \ |
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149 fp.fp_par[0].i[0] = (sm1); fp.fp_par[0].i[1] = (sm2); \ |
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150 fp.fp_par[1].i[0] = (lrg1); fp.fp_par[1].i[1] = (lrg2); \ |
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151 fp.fp_par[2].i[0] = (rt1); fp.fp_par[2].i[1] = (rt2); \ |
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152 fp.fp_par[3].i[0] = (dv1); fp.fp_par[3].i[1] = (dv2); \ |
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153 } \ |
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154 while (0) |
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155 |
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156 static int |
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157 equiv_compare (const equiv *std, const equiv *v, int len) |
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158 { |
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159 int i; |
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160 for (i = 0; i < len; i++) |
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161 if (v[i].i[0] != std[i].i[0] || v[i].i[1] != std[i].i[1]) |
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162 return 0; |
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163 return 1; |
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164 } |
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165 |
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444
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166 static void |
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167 octave_ieee_init (void) |
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168 { |
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169 #if defined (HAVE_ISINF) || defined (HAVE_FINITE) |
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170 |
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171 // Some version of gcc on some old version of Linux used to crash when |
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172 // trying to make Inf and NaN. |
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173 |
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174 #if defined (HAVE_INFINITY) |
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470
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175 octave_Inf = (double) infinity (); |
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967
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176 #elif defined (linux) |
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444
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177 octave_Inf = HUGE_VAL; |
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967
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178 #elif defined (__alpha__) |
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529
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179 extern unsigned int DINFINITY[2]; |
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180 octave_Inf = (*((double *) (DINFINITY))); |
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181 #else |
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444
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182 double tmp = 1e+10; |
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183 octave_Inf = tmp; |
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184 for (;;) |
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185 { |
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186 octave_Inf *= 1e+10; |
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187 if (octave_Inf == tmp) |
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188 break; |
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189 tmp = octave_Inf; |
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190 } |
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191 #endif |
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529
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192 |
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1384
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193 #endif |
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194 |
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195 #if defined (HAVE_ISNAN) |
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196 |
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444
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197 #if defined (HAVE_QUIET_NAN) |
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470
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198 octave_NaN = (double) quiet_nan (); |
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967
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199 #elif defined (linux) |
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444
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200 octave_NaN = NAN; |
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967
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201 #elif defined (__alpha__) |
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529
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202 extern unsigned int DQNAN[2]; |
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203 octave_NaN = (*((double *) (DQNAN))); |
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204 #else |
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444
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205 octave_NaN = octave_Inf / octave_Inf; |
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206 #endif |
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207 |
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208 #endif |
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1226
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209 |
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210 float_params fp[5]; |
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211 |
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212 INIT_FLT_PAR (fp[0], OCTAVE_IEEE_BIG, |
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213 1048576, 0, |
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214 2146435071, -1, |
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215 1017118720, 0, |
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216 1018167296, 0); |
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217 |
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218 INIT_FLT_PAR (fp[1], OCTAVE_IEEE_LITTLE, |
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219 0, 1048576, |
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220 -1, 2146435071, |
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221 0, 1017118720, |
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222 0, 1018167296); |
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223 |
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224 INIT_FLT_PAR (fp[2], OCTAVE_VAX_D, |
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225 128, 0, |
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226 -32769, -1, |
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227 9344, 0, |
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228 9344, 0); |
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229 |
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230 INIT_FLT_PAR (fp[3], OCTAVE_VAX_G, |
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231 16, 0, |
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232 -32769, -1, |
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233 15552, 0, |
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234 15552, 0); |
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235 |
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236 INIT_FLT_PAR (fp[4], OCTAVE_UNKNOWN_FLT_FMT, |
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237 0, 0, |
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238 0, 0, |
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239 0, 0, |
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240 0, 0); |
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241 |
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242 equiv mach_fp_par[4]; |
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243 |
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1255
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244 mach_fp_par[0].d = F77_FCN (d1mach, D1MACH) (1); |
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245 mach_fp_par[1].d = F77_FCN (d1mach, D1MACH) (2); |
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246 mach_fp_par[2].d = F77_FCN (d1mach, D1MACH) (3); |
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247 mach_fp_par[3].d = F77_FCN (d1mach, D1MACH) (4); |
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248 |
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249 int i = 0; |
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250 do |
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251 { |
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252 if (equiv_compare (fp[i].fp_par, mach_fp_par, 4)) |
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253 { |
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254 native_float_format = fp[i].fp_fmt; |
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255 break; |
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256 } |
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257 } |
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258 while (fp[++i].fp_fmt != OCTAVE_UNKNOWN_FLT_FMT); |
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259 |
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260 if (native_float_format == OCTAVE_UNKNOWN_FLT_FMT) |
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261 panic ("unrecognized floating point format!"); |
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444
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262 } |
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263 |
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264 static void |
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265 ten_little_endians (void) |
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266 { |
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267 // Are we little or big endian? From Harbison & Steele. |
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268 |
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269 union |
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270 { |
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271 long l; |
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272 char c[sizeof (long)]; |
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273 } u; |
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274 |
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275 u.l = 1; |
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276 |
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277 octave_words_big_endian = (u.c[sizeof (long) - 1] == 1); |
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278 } |
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279 |
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505
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280 #if defined (EXCEPTION_IN_MATH) |
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281 extern "C" |
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282 int |
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283 matherr (struct exception *x) |
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284 { |
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1358
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285 // Possibly print our own message someday. Should probably be |
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286 // user-switchable. |
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505
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287 |
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288 switch (x->type) |
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289 { |
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290 case DOMAIN: |
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291 case SING: |
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292 case OVERFLOW: |
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293 case UNDERFLOW: |
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294 case TLOSS: |
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295 case PLOSS: |
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296 default: |
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297 break; |
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298 } |
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299 |
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1358
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300 // But don't print the system message. |
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505
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301 |
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302 return 1; |
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303 } |
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1466
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304 #endif |
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505
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305 |
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1
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306 void |
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307 sysdep_init (void) |
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308 { |
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959
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309 #if defined (__386BSD__) || defined (__FreeBSD__) |
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998
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310 #if defined (HAVE_FLOATINGPOINT_H) |
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1358
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311 // Disable trapping on common exceptions. |
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401
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312 fpsetmask (~(FP_X_OFL|FP_X_INV|FP_X_DZ|FP_X_DNML|FP_X_UFL|FP_X_IMP)); |
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313 #endif |
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959
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314 #endif |
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401
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315 |
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1
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316 #ifdef NeXT |
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317 NeXT_init (); |
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318 #endif |
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444
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319 |
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320 octave_ieee_init (); |
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321 |
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322 ten_little_endians (); |
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1
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323 } |
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324 |
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767
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325 // Set terminal in raw mode. From less-177. |
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326 // |
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327 // Change terminal to "raw mode", or restore to "normal" mode. |
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328 // "Raw mode" means |
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329 // 1. An outstanding read will complete on receipt of a single keystroke. |
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330 // 2. Input is not echoed. |
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331 // 3. On output, \n is mapped to \r\n. |
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332 // 4. \t is NOT expanded into spaces. |
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333 // 5. Signal-causing characters such as ctrl-C (interrupt), |
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334 // etc. are NOT disabled. |
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335 // It doesn't matter whether an input \n is mapped to \r, or vice versa. |
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336 |
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529
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337 void |
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338 raw_mode (int on) |
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339 { |
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340 static int curr_on = 0; |
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341 |
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342 int tty_fd = STDIN_FILENO; |
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343 if (! isatty (tty_fd)) |
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344 { |
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345 if (interactive) |
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346 error ("stdin is not a tty!"); |
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347 return; |
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348 } |
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349 |
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350 if (on == curr_on) |
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351 return; |
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352 |
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353 #if defined (HAVE_TERMIOS_H) |
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354 { |
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355 struct termios s; |
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356 static struct termios save_term; |
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357 |
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358 if (on) |
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359 { |
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1358
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360 // Get terminal modes. |
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529
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361 |
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362 tcgetattr (tty_fd, &s); |
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363 |
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1358
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364 // Save modes and set certain variables dependent on modes. |
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529
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365 |
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366 save_term = s; |
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367 // ospeed = s.c_cflag & CBAUD; |
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368 // erase_char = s.c_cc[VERASE]; |
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369 // kill_char = s.c_cc[VKILL]; |
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370 |
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1358
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371 // Set the modes to the way we want them. |
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529
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372 |
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373 s.c_lflag &= ~(ICANON|ECHO|ECHOE|ECHOK|ECHONL); |
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374 s.c_oflag |= (OPOST|ONLCR); |
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375 #if defined (OCRNL) |
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376 s.c_oflag &= ~(OCRNL); |
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377 #endif |
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378 #if defined (ONOCR) |
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379 s.c_oflag &= ~(ONOCR); |
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380 #endif |
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381 #if defined (ONLRET) |
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382 s.c_oflag &= ~(ONLRET); |
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383 #endif |
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384 s.c_cc[VMIN] = 1; |
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385 s.c_cc[VTIME] = 0; |
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386 } |
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387 else |
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388 { |
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1358
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389 // Restore saved modes. |
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390 |
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529
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391 s = save_term; |
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392 } |
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393 tcsetattr (tty_fd, TCSAFLUSH, &s); |
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394 } |
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395 #elif defined (HAVE_TERMIO_H) |
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396 { |
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397 struct termio s; |
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398 static struct termio save_term; |
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399 |
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400 if (on) |
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401 { |
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1358
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402 // Get terminal modes. |
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529
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403 |
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404 ioctl (tty_fd, TCGETA, &s); |
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405 |
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1358
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406 // Save modes and set certain variables dependent on modes. |
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529
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407 |
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408 save_term = s; |
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409 // ospeed = s.c_cflag & CBAUD; |
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410 // erase_char = s.c_cc[VERASE]; |
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411 // kill_char = s.c_cc[VKILL]; |
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412 |
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1358
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413 // Set the modes to the way we want them. |
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529
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414 |
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415 s.c_lflag &= ~(ICANON|ECHO|ECHOE|ECHOK|ECHONL); |
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416 s.c_oflag |= (OPOST|ONLCR); |
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417 #if defined (OCRNL) |
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418 s.c_oflag &= ~(OCRNL); |
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419 #endif |
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420 #if defined (ONOCR) |
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421 s.c_oflag &= ~(ONOCR); |
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422 #endif |
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423 #if defined (ONLRET) |
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424 s.c_oflag &= ~(ONLRET); |
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425 #endif |
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426 s.c_cc[VMIN] = 1; |
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427 s.c_cc[VTIME] = 0; |
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428 } |
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429 else |
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430 { |
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1358
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431 // Restore saved modes. |
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432 |
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529
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433 s = save_term; |
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434 } |
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435 ioctl (tty_fd, TCSETAW, &s); |
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436 } |
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437 #elif defined (HAVE_SGTTY_H) |
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438 { |
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439 struct sgttyb s; |
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440 static struct sgttyb save_term; |
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441 |
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442 if (on) |
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443 { |
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1358
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444 // Get terminal modes. |
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529
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445 |
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446 ioctl (tty_fd, TIOCGETP, &s); |
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447 |
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1358
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448 // Save modes and set certain variables dependent on modes. |
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529
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449 |
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450 save_term = s; |
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451 // ospeed = s.sg_ospeed; |
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452 // erase_char = s.sg_erase; |
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453 // kill_char = s.sg_kill; |
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454 |
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1358
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455 // Set the modes to the way we want them. |
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529
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456 |
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457 s.sg_flags |= CBREAK; |
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458 s.sg_flags &= ~(ECHO); |
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459 } |
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460 else |
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461 { |
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1358
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462 // Restore saved modes. |
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463 |
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529
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464 s = save_term; |
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465 } |
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466 ioctl (tty_fd, TIOCSETN, &s); |
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467 } |
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468 #else |
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469 LOSE! LOSE! |
|
|
470 #endif |
|
|
471 |
|
|
472 curr_on = on; |
|
|
473 } |
|
|
474 |
|
767
|
475 // Read one character from the terminal. |
|
|
476 |
|
529
|
477 int |
|
|
478 kbhit (void) |
|
|
479 { |
|
|
480 int c; |
|
|
481 raw_mode (1); |
|
|
482 c = cin.get (); |
|
|
483 raw_mode (0); |
|
|
484 return c; |
|
|
485 } |
|
|
486 |
|
1755
|
487 string |
|
|
488 octave_getcwd (void) |
|
1111
|
489 { |
|
1755
|
490 string retval; |
|
|
491 char buf[MAXPATHLEN]; |
|
|
492 |
|
1113
|
493 #if defined (__EMX__) |
|
1755
|
494 char *tmp = _getcwd2 (buf, MAXPATHLEN); |
|
1111
|
495 #else |
|
1755
|
496 char *tmp = getcwd (buf, MAXPATHLEN); |
|
1111
|
497 #endif |
|
1755
|
498 |
|
|
499 if (tmp) |
|
|
500 retval = tmp; |
|
|
501 |
|
|
502 return retval; |
|
1111
|
503 } |
|
|
504 |
|
|
505 int |
|
1755
|
506 octave_chdir (const string& path) |
|
1111
|
507 { |
|
1113
|
508 #if defined (__EMX__) |
|
1111
|
509 int retval = -1; |
|
|
510 |
|
1755
|
511 if (path.length () == 2 && path[1] == ':') |
|
1111
|
512 { |
|
1755
|
513 char *upper_case_dir_name = strupr (path.c_str ()); |
|
1111
|
514 _chdrive (upper_case_dir_name[0]); |
|
|
515 if (_getdrive () == upper_case_dir_name[0]) |
|
|
516 retval = _chdir2 ("/"); |
|
|
517 } |
|
|
518 else |
|
1755
|
519 retval = _chdir2 (path.c_str ()); |
|
1111
|
520 |
|
|
521 return retval; |
|
|
522 #else |
|
1755
|
523 return chdir (path.c_str ()); |
|
1111
|
524 #endif |
|
|
525 } |
|
|
526 |
|
1488
|
527 DEFUN ("clc", Fclc, Sclc, 00, |
|
529
|
528 "clc (): clear screen") |
|
|
529 { |
|
|
530 Octave_object retval; |
|
|
531 |
|
|
532 rl_beg_of_line (); |
|
|
533 rl_kill_line (1); |
|
|
534 |
|
|
535 #if ! defined (_GO32_) |
|
|
536 if (term_clrpag) |
|
|
537 tputs (term_clrpag, 1, _rl_output_character_function); |
|
|
538 else |
|
|
539 crlf (); |
|
|
540 #else |
|
|
541 crlf (); |
|
|
542 #endif |
|
|
543 |
|
|
544 fflush (rl_outstream); |
|
|
545 |
|
|
546 return retval; |
|
|
547 } |
|
|
548 |
|
549
|
549 DEFALIAS (home, clc); |
|
|
550 |
|
1488
|
551 DEFUN ("getenv", Fgetenv, Sgetenv, 10, |
|
529
|
552 "getenv (STRING): get environment variable values") |
|
|
553 { |
|
|
554 Octave_object retval; |
|
|
555 |
|
|
556 int nargin = args.length (); |
|
|
557 |
|
712
|
558 if (nargin == 1) |
|
529
|
559 { |
|
1728
|
560 string tstr = args(0).string_value (); |
|
|
561 const char *name = tstr.c_str (); |
|
636
|
562 |
|
|
563 if (! error_state) |
|
|
564 { |
|
|
565 char *value = getenv (name); |
|
|
566 if (value) |
|
|
567 retval = value; |
|
|
568 else |
|
|
569 retval = ""; |
|
|
570 } |
|
529
|
571 } |
|
|
572 else |
|
|
573 print_usage ("getenv"); |
|
|
574 |
|
|
575 return retval; |
|
|
576 } |
|
|
577 |
|
1706
|
578 DEFUN ("putenv", Fputenv, Sputenv, 10, |
|
|
579 "putenv (VAR, VALUE): define environment variable VAR=VALUE") |
|
|
580 { |
|
|
581 Octave_object retval; |
|
|
582 |
|
|
583 int nargin = args.length (); |
|
|
584 |
|
|
585 if (nargin == 2) |
|
|
586 { |
|
1755
|
587 string var = args(0).string_value (); |
|
1706
|
588 |
|
|
589 if (! error_state) |
|
|
590 { |
|
1755
|
591 string val = args(1).string_value (); |
|
1706
|
592 |
|
|
593 if (! error_state) |
|
1755
|
594 oct_putenv (var.c_str (), val.c_str ()); |
|
1706
|
595 else |
|
|
596 error ("putenv: second argument should be a string"); |
|
|
597 } |
|
|
598 else |
|
|
599 error ("putenv: first argument should be a string"); |
|
|
600 } |
|
|
601 else |
|
|
602 print_usage ("putenv"); |
|
|
603 |
|
|
604 return retval; |
|
|
605 } |
|
|
606 |
|
1488
|
607 DEFUN ("kbhit", Fkbhit, Skbhit, 00, |
|
529
|
608 "kbhit: get a single character from the terminal") |
|
|
609 { |
|
|
610 Octave_object retval; |
|
|
611 |
|
1358
|
612 // XXX FIXME XXX -- add timeout and default value args? |
|
529
|
613 |
|
|
614 if (interactive) |
|
|
615 { |
|
|
616 int c = kbhit (); |
|
|
617 char *s = new char [2]; |
|
|
618 s[0] = c; |
|
|
619 s[1] = '\0'; |
|
|
620 retval = s; |
|
|
621 } |
|
|
622 |
|
|
623 return retval; |
|
|
624 } |
|
|
625 |
|
1488
|
626 DEFUN ("pause", Fpause, Spause, 10, |
|
529
|
627 "pause (seconds): suspend program execution") |
|
|
628 { |
|
|
629 Octave_object retval; |
|
|
630 |
|
|
631 int nargin = args.length (); |
|
|
632 |
|
712
|
633 if (! (nargin == 0 || nargin == 1)) |
|
529
|
634 { |
|
|
635 print_usage ("pause"); |
|
|
636 return retval; |
|
|
637 } |
|
|
638 |
|
1579
|
639 if (nargin == 1) |
|
529
|
640 { |
|
1579
|
641 double dval = args(0).double_value (); |
|
636
|
642 |
|
1579
|
643 if (! error_state) |
|
|
644 { |
|
|
645 if (xisnan (dval)) |
|
|
646 warning ("pause: NaN is an invalid delay"); |
|
|
647 else |
|
|
648 { |
|
|
649 int delay = NINT (dval); |
|
|
650 if (delay > 0) |
|
|
651 sleep (delay); |
|
|
652 } |
|
529
|
653 } |
|
|
654 } |
|
1579
|
655 else |
|
|
656 { |
|
|
657 if (kbhit () == EOF) |
|
|
658 clean_up_and_exit (0); |
|
|
659 } |
|
529
|
660 |
|
|
661 return retval; |
|
|
662 } |
|
|
663 |
|
862
|
664 // XXX FIXME XXX -- maybe this should only return 1 if IEEE floating |
|
|
665 // point functions really work. |
|
|
666 |
|
1488
|
667 DEFUN ("isieee", Fisieee, Sisieee, 00, |
|
862
|
668 "isieee (): return 1 if host uses IEEE floating point") |
|
|
669 { |
|
1226
|
670 return (double) (native_float_format == OCTAVE_IEEE_LITTLE |
|
|
671 || native_float_format == OCTAVE_IEEE_BIG); |
|
862
|
672 } |
|
|
673 |
|
529
|
674 #if !defined (HAVE_GETHOSTNAME) && defined (HAVE_SYS_UTSNAME_H) |
|
|
675 int |
|
|
676 gethostname (char *name, int namelen) |
|
|
677 { |
|
|
678 int i; |
|
|
679 struct utsname ut; |
|
|
680 |
|
|
681 --namelen; |
|
|
682 |
|
|
683 uname (&ut); |
|
|
684 i = strlen (ut.nodename) + 1; |
|
|
685 strncpy (name, ut.nodename, i < namelen ? i : namelen); |
|
|
686 name[namelen] = '\0'; |
|
|
687 |
|
|
688 return 0; |
|
|
689 } |
|
|
690 #endif |
|
|
691 |
|
1750
|
692 // The check for error state allows us to do this: |
|
|
693 // |
|
|
694 // string foo = oct_tilde_expand (args(0).string_value ()); |
|
|
695 // |
|
|
696 // without having to use a temporary and check error_state before |
|
|
697 // calling oct_tilde_expand. |
|
|
698 |
|
|
699 string |
|
|
700 oct_tilde_expand (const string& name) |
|
|
701 { |
|
|
702 string retval; |
|
|
703 |
|
|
704 if (! error_state) |
|
|
705 { |
|
|
706 char *tmp = tilde_expand (name.c_str ()); |
|
|
707 retval = tmp; |
|
|
708 delete [] tmp; |
|
|
709 } |
|
|
710 |
|
|
711 return retval; |
|
|
712 } |
|
|
713 |
|
|
714 DEFUN ("tilde_expand", Ftilde_expand, Stilde_expand, 10, |
|
|
715 "tilde_expand (STRING): perform tilde expansion on STRING") |
|
|
716 { |
|
|
717 Octave_object retval; |
|
|
718 |
|
|
719 int nargin = args.length (); |
|
|
720 |
|
|
721 if (nargin == 1) |
|
|
722 retval = oct_tilde_expand (args(0).string_value ()); |
|
|
723 else |
|
|
724 print_usage ("tilde_expand"); |
|
|
725 |
|
|
726 return retval; |
|
|
727 } |
|
|
728 |
|
529
|
729 /* |
|
1
|
730 ;;; Local Variables: *** |
|
|
731 ;;; mode: C++ *** |
|
|
732 ;;; page-delimiter: "^/\\*" *** |
|
|
733 ;;; End: *** |
|
|
734 */ |
