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1 /* |
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2 |
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2847
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3 Copyright (C) 1996, 1997 John W. Eaton |
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1683
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4 |
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5 This file is part of Octave. |
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6 |
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7 Octave is free software; you can redistribute it and/or modify it |
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8 under the terms of the GNU General Public License as published by the |
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9 Free Software Foundation; either version 2, or (at your option) any |
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10 later version. |
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11 |
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12 Octave is distributed in the hope that it will be useful, but WITHOUT |
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13 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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15 for more details. |
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16 |
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17 You should have received a copy of the GNU General Public License |
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18 along with Octave; see the file COPYING. If not, write to the Free |
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19 Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
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20 |
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21 */ |
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22 |
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23 #ifdef HAVE_CONFIG_H |
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24 #include <config.h> |
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25 #endif |
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26 |
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27 #include <cassert> |
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28 #include <csetjmp> |
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29 #include <csignal> |
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30 #include <cstdlib> |
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31 #include <cstring> |
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32 |
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1728
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33 #include <string> |
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34 |
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1683
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35 #include <fstream.h> |
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36 #include <iostream.h> |
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37 #include <strstream.h> |
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38 |
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39 #ifdef HAVE_UNISTD_H |
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2442
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40 #ifdef HAVE_SYS_TYPES_H |
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41 #include <sys/types.h> |
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2442
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42 #endif |
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43 #include <unistd.h> |
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44 #endif |
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45 |
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2926
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46 #include "cmd-edit.h" |
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47 #include "file-ops.h" |
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1683
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48 #include "lo-error.h" |
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2370
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49 #include "lo-mappers.h" |
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3020
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50 #include "oct-env.h" |
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1755
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51 #include "str-vec.h" |
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52 |
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2492
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53 #include <defaults.h> |
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54 #include "defun.h" |
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55 #include "dynamic-ld.h" |
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56 #include "error.h" |
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57 #include "file-io.h" |
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58 #include "input.h" |
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59 #include "lex.h" |
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2492
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60 #include <oct-conf.h> |
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1742
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61 #include "oct-hist.h" |
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2162
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62 #include "oct-map.h" |
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2862
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63 #include "oct-obj.h" |
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64 #include "pager.h" |
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65 #include "parse.h" |
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66 #include "pathsearch.h" |
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67 #include "procstream.h" |
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2370
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68 #include "ov.h" |
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2985
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69 #include "pt-jump.h" |
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1750
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70 #include "pt-plot.h" |
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2982
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71 #include "pt-stmt.h" |
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72 #include "sighandlers.h" |
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73 #include "sysdep.h" |
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2693
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74 #include "syswait.h" |
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1750
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75 #include "toplev.h" |
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76 #include "unwind-prot.h" |
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77 #include "utils.h" |
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78 #include "variables.h" |
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2492
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79 #include <version.h> |
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80 |
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3020
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81 // TRUE means we are exiting via the builtin exit or quit functions. |
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82 static bool quitting_gracefully = false; |
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83 |
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84 // Current command to execute. |
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85 tree_statement_list *global_command = 0; |
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86 |
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87 // Pointer to function that is currently being evaluated. |
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88 octave_user_function *curr_function = 0; |
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89 |
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1907
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90 // Top level context (?) |
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91 jmp_buf toplevel; |
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92 |
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93 int |
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94 main_loop (void) |
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95 { |
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96 // Allow the user to interrupt us without exiting. |
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97 |
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98 octave_save_signal_mask (); |
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99 |
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100 if (setjmp (toplevel) != 0) |
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101 { |
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102 raw_mode (0); |
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103 |
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104 cout << "\n"; |
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105 |
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106 octave_restore_signal_mask (); |
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107 } |
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108 |
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109 can_interrupt = true; |
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110 |
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111 octave_catch_interrupts (); |
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112 |
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113 // The big loop. |
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114 |
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115 int retval; |
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116 do |
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117 { |
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118 curr_sym_tab = top_level_sym_tab; |
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119 |
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120 reset_parser (); |
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121 |
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122 retval = yyparse (); |
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123 |
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124 if (retval == 0 && global_command) |
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125 { |
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2898
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126 global_command->eval (); |
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127 |
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1907
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128 delete global_command; |
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129 |
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2620
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130 global_command = 0; |
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131 |
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132 if (! (interactive || forced_interactive)) |
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133 { |
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134 bool quit = (tree_return_command::returning |
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135 || tree_break_command::breaking); |
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136 |
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137 if (tree_return_command::returning) |
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138 tree_return_command::returning = 0; |
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139 |
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140 if (tree_break_command::breaking) |
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141 tree_break_command::breaking--; |
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142 |
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143 if (quit) |
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144 break; |
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145 } |
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146 |
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147 if (error_state) |
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148 { |
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149 if (! (interactive || forced_interactive)) |
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150 break; |
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151 } |
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2299
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152 else |
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2620
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153 { |
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154 if (octave_completion_matches_called) |
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155 octave_completion_matches_called = false; |
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156 else |
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2973
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157 command_editor::increment_current_command_number (); |
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2620
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158 } |
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1907
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159 } |
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160 } |
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161 while (retval == 0); |
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162 |
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163 return retval; |
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164 } |
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165 |
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166 // Fix up things before exiting. |
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167 |
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168 void |
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3162
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169 clean_up_and_exit (int retval) |
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170 { |
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3216
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171 do_octave_atexit (); |
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172 |
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3162
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173 exit (retval == EOF ? 0 : retval); |
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174 } |
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175 |
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1957
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176 DEFUN_TEXT (casesen, args, , |
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177 "casesen [on|off]") |
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178 { |
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179 octave_value_list retval; |
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180 |
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181 int argc = args.length () + 1; |
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182 |
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1965
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183 string_vector argv = args.make_argv ("casesen"); |
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184 |
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185 if (error_state) |
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186 return retval; |
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187 |
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188 if (argc == 1 || (argc > 1 && argv[1] == "off")) |
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189 warning ("casesen: sorry, Octave is always case sensitive"); |
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190 else if (argc > 1 && argv[1] == "on") |
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191 ; // ok. |
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192 else |
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193 print_usage ("casesen"); |
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194 |
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195 return retval; |
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196 } |
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197 |
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1957
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198 DEFUN (computer, args, nargout, |
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199 "-*- texinfo -*-\n\ |
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200 @deftypefn {Built-in Function} {} computer ()\n\ |
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201 Print or return a string of the form @var{cpu}-@var{vendor}-@var{os}\n\ |
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202 that identifies the kind of computer Octave is running on. If invoked\n\ |
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203 with an output argument, the value is returned instead of printed. For\n\ |
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204 example,\n\ |
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205 \n\ |
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206 @example\n\ |
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207 @group\n\ |
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208 computer ()\n\ |
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209 @print{} i586-pc-linux-gnu\n\ |
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210 \n\ |
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211 x = computer ()\n\ |
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212 @result{} x = \"i586-pc-linux-gnu\"\n\ |
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213 @end group\n\ |
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214 @end example\n\ |
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215 @end deftypefn") |
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216 { |
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217 octave_value_list retval; |
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218 |
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219 int nargin = args.length (); |
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220 |
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221 if (nargin != 0) |
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222 warning ("computer: ignoring extra arguments"); |
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223 |
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224 string msg; |
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225 |
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3234
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226 if (strcmp (CANONICAL_HOST_TYPE, "unknown") == 0) |
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227 msg = "Hi Dave, I'm a HAL-9000"; |
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228 else |
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229 msg = CANONICAL_HOST_TYPE; |
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230 |
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231 if (nargout == 0) |
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232 octave_stdout << msg << "\n"; |
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233 else |
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234 retval = msg; |
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235 |
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236 return retval; |
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237 } |
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238 |
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3180
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239 DEFUN (quit, args, nargout, |
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240 "quit (STATUS): exit Octave gracefully, returning STATUS to the system.\n\ |
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241 \n\ |
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242 STATUS should be an integer value. If STATUS is missing, 0 is assumed.") |
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243 { |
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2086
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244 octave_value_list retval; |
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2068
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245 |
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3180
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246 if (nargout == 0) |
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2068
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247 { |
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3180
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248 int exit_status = 0; |
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249 |
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250 quitting_gracefully = true; |
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251 |
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3180
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252 if (args.length () > 0) |
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253 { |
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3202
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254 int tmp = args(0).nint_value (); |
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255 |
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3202
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256 if (! error_state) |
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257 exit_status = tmp; |
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3180
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258 } |
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259 |
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260 clean_up_and_exit (exit_status); |
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2068
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261 } |
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3180
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262 else |
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263 error ("quit: invalid number of output arguments"); |
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2068
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264 |
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265 return retval; |
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266 } |
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267 |
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268 DEFALIAS (exit, quit); |
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269 |
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1957
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270 DEFUN (warranty, , , |
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271 "warranty (): describe copying conditions") |
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272 { |
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2086
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273 octave_value_list retval; |
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274 |
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2095
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275 octave_stdout << "\n" OCTAVE_NAME_VERSION_AND_COPYRIGHT "\n\n\ |
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276 This program is free software; you can redistribute it and/or modify\n\ |
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277 it under the terms of the GNU General Public License as published by\n\ |
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278 the Free Software Foundation; either version 2 of the License, or\n\ |
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279 (at your option) any later version.\n\ |
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280 \n\ |
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281 This program is distributed in the hope that it will be useful,\n\ |
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282 but WITHOUT ANY WARRANTY; without even the implied warranty of\n\ |
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283 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\n\ |
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284 GNU General Public License for more details.\n\ |
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285 \n\ |
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286 You should have received a copy of the GNU General Public License\n\ |
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287 along with this program. If not, write to the Free Software\n\ |
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288 Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.\n\ |
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289 \n"; |
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290 |
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291 return retval; |
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292 } |
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293 |
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294 // Execute a shell command. |
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295 |
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1965
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296 static void |
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297 cleanup_iprocstream (void *p) |
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298 { |
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3060
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299 iprocstream *cmd = static_cast<iprocstream *> (p); |
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300 |
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301 octave_child_list::remove (cmd->pid ()); |
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302 |
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303 delete cmd; |
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1965
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304 } |
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305 |
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2086
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306 static octave_value_list |
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2321
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307 run_command_and_return_output (const string& cmd_str) |
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308 { |
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2086
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309 octave_value_list retval; |
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310 |
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311 iprocstream *cmd = new iprocstream (cmd_str.c_str ()); |
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312 |
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3060
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313 if (cmd) |
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2083
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314 { |
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3060
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315 unwind_protect::add (cleanup_iprocstream, cmd); |
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316 |
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317 if (*cmd) |
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318 { |
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319 ostrstream output_buf; |
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2095
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320 |
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3147
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321 // XXX FIXME XXX -- sometimes, the subprocess hasn't written |
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322 // anything before we try to read from the procstream. The |
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323 // kluge below (simply waiting and trying again) is ugly, |
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324 // but it seems to work, at least most of the time. It |
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325 // could probably still fail if the subprocess hasn't |
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326 // started writing after the snooze. Isn't there a better |
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327 // way? If there is, you should also fix the code for the |
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328 // ls function in dirfns.cc. |
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329 |
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3060
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330 char ch; |
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3147
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331 |
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332 if (cmd->get (ch)) |
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333 output_buf.put (ch); |
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334 else |
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335 { |
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336 cmd->clear (); |
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337 |
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338 #if defined (HAVE_USLEEP) |
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339 usleep (100); |
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340 #else |
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341 sleep (1); |
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342 #endif |
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343 } |
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344 |
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3060
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345 while (cmd->get (ch)) |
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346 output_buf.put (ch); |
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347 |
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3252
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348 int cmd_status = cmd->close (); |
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349 |
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3060
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350 if (WIFEXITED (cmd_status)) |
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351 cmd_status = WEXITSTATUS (cmd_status); |
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352 else |
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353 cmd_status = 127; |
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2083
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354 |
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3060
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355 output_buf << ends; |
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2145
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356 |
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3060
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357 char *msg = output_buf.str (); |
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358 |
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3060
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359 retval(1) = (double) cmd_status; |
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360 retval(0) = msg; |
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361 |
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3060
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362 delete [] msg; |
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363 } |
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364 |
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365 unwind_protect::run (); |
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366 } |
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367 else |
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368 error ("unable to start subprocess for `%s'", cmd_str.c_str ()); |
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369 |
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370 return retval; |
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371 } |
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372 |
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1957
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373 DEFUN (system, args, nargout, |
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3301
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374 "-*- texinfo -*-\n\ |
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375 @deftypefn {Built-in Function} {} system (@var{string}, @var{return_output}, @var{type})\n\ |
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376 Execute a shell command specified by @var{string}. The second\n\ |
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377 argument is optional. If @var{type} is @code{\"async\"}, the process\n\ |
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378 is started in the background and the process id of the child process\n\ |
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379 is returned immediately. Otherwise, the process is started, and\n\ |
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380 Octave waits until it exits. If @var{type} argument is omitted, a\n\ |
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381 value of @code{\"sync\"} is assumed.\n\ |
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2083
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382 \n\ |
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3301
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383 If two input arguments are given (the actual value of\n\ |
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384 @var{return_output} is irrelevant) and the subprocess is started\n\ |
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385 synchronously, or if @var{system} is called with one input argument and\n\ |
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386 one or more output arguments, the output from the command is returned.\n\ |
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2083
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387 Otherwise, if the subprocess is executed synchronously, it's output is\n\ |
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2321
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388 sent to the standard output. To send the output of a command executed\n\ |
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3301
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389 with @var{system} through the pager, use a command like\n\ |
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2321
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390 \n\ |
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3301
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391 @example\n\ |
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392 disp (system (cmd, 1));\n\ |
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393 @end example\n\ |
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2321
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394 \n\ |
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3301
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395 @noindent\n\ |
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2321
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396 or\n\ |
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397 \n\ |
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3301
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398 @example\n\ |
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399 printf (\"%s\n\", system (cmd, 1));\n\ |
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400 @end example\n\ |
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401 \n\ |
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402 The @code{system} function can return two values. The first is any\n\ |
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403 output from the command that was written to the standard output stream,\n\ |
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404 and the second is the output status of the command. For example,\n\ |
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405 \n\ |
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406 @example\n\ |
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407 [output, status] = system (\"echo foo; exit 2\");\n\ |
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408 @end example\n\ |
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409 \n\ |
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410 @noindent\n\ |
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411 will set the variable @code{output} to the string @samp{foo}, and the\n\ |
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412 variable @code{status} to the integer @samp{2}.\n\ |
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413 @end deftypefn") |
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1683
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414 { |
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2086
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415 octave_value_list retval; |
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1683
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416 |
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417 int nargin = args.length (); |
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418 |
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2083
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419 if (nargin > 0 && nargin < 4) |
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1683
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420 { |
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2083
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421 bool return_output = (nargout > 0 || nargin > 1); |
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422 |
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423 string cmd_str = args(0).string_value (); |
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424 |
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425 enum exec_type { sync, async }; |
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426 |
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427 exec_type type = sync; |
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428 |
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429 if (! error_state) |
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430 { |
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431 if (nargin > 2) |
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432 { |
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433 string type_str = args(2).string_value (); |
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1683
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434 |
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2083
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435 if (! error_state) |
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436 { |
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437 if (type_str == "sync") |
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438 type = sync; |
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439 else if (type_str == "async") |
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440 type = async; |
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441 else |
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442 error ("system: third arg must be \"sync\" or \"async\""); |
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443 } |
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444 else |
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445 error ("system: third argument must be a string"); |
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446 } |
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447 } |
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448 else |
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449 error ("system: expecting string as first argument"); |
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1683
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450 |
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2083
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451 if (! error_state) |
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452 { |
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453 if (type == async) |
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454 { |
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455 pid_t pid = fork (); |
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456 |
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457 if (pid < 0) |
|
|
458 error ("system: fork failed -- can't create child process"); |
|
|
459 else if (pid == 0) |
|
|
460 { |
|
3273
|
461 // XXX FIXME XXX -- should probably replace this |
|
|
462 // call with something portable. |
|
|
463 |
|
|
464 execl ("/bin/sh", "sh", "-c", cmd_str.c_str (), 0); |
|
|
465 |
|
|
466 panic_impossible (); |
|
2083
|
467 } |
|
|
468 else |
|
2800
|
469 retval(0) = static_cast<double> (pid); |
|
2083
|
470 } |
|
2321
|
471 else if (return_output) |
|
|
472 retval = run_command_and_return_output (cmd_str); |
|
2083
|
473 else |
|
2321
|
474 { |
|
|
475 int status = system (cmd_str.c_str ()); |
|
|
476 |
|
|
477 // The value in status is as returned by waitpid. If |
|
|
478 // the process exited normally, extract the actual exit |
|
|
479 // status of the command. Otherwise, return 127 as a |
|
|
480 // failure code. |
|
|
481 |
|
2693
|
482 if (WIFEXITED (status)) |
|
|
483 status = WEXITSTATUS (status); |
|
2321
|
484 |
|
2800
|
485 retval = static_cast<double> (status); |
|
2321
|
486 } |
|
2083
|
487 } |
|
1683
|
488 } |
|
|
489 else |
|
2083
|
490 print_usage ("system"); |
|
1683
|
491 |
|
|
492 return retval; |
|
|
493 } |
|
|
494 |
|
|
495 DEFALIAS (shell_cmd, system); |
|
|
496 |
|
2614
|
497 // XXX FIXME XXX -- this should really be static, but that causes |
|
|
498 // problems on some systems. |
|
|
499 SLStack<string> octave_atexit_functions; |
|
2077
|
500 |
|
|
501 void |
|
|
502 do_octave_atexit (void) |
|
|
503 { |
|
3216
|
504 static bool deja_vu = false; |
|
|
505 |
|
2077
|
506 while (! octave_atexit_functions.empty ()) |
|
|
507 { |
|
2086
|
508 octave_value_list fcn = octave_atexit_functions.pop (); |
|
2077
|
509 |
|
2942
|
510 feval (fcn, 0); |
|
3215
|
511 |
|
|
512 flush_octave_stdout (); |
|
2077
|
513 } |
|
3216
|
514 |
|
|
515 if (! deja_vu) |
|
|
516 { |
|
|
517 deja_vu = true; |
|
|
518 |
|
|
519 command_editor::restore_terminal_state (); |
|
|
520 |
|
|
521 // XXX FIXME XXX -- is this needed? Can it cause any trouble? |
|
|
522 raw_mode (0); |
|
|
523 |
|
|
524 command_history::clean_up_and_save (); |
|
|
525 |
|
|
526 close_plot_stream (); |
|
|
527 |
|
|
528 close_files (); |
|
|
529 |
|
|
530 cleanup_tmp_files (); |
|
|
531 |
|
|
532 flush_octave_stdout (); |
|
|
533 |
|
|
534 if (!quitting_gracefully && (interactive || forced_interactive)) |
|
|
535 cout << "\n"; |
|
|
536 } |
|
2077
|
537 } |
|
|
538 |
|
2162
|
539 DEFUN (atexit, args, , |
|
2077
|
540 "atexit (NAME): register NAME as a function to call when Octave exits\n\ |
|
|
541 \n\ |
|
2802
|
542 Functions are called with no arguments in the reverse of the order in\n\ |
|
2077
|
543 which they were registered with atexit()") |
|
|
544 { |
|
2086
|
545 octave_value_list retval; |
|
2077
|
546 |
|
|
547 int nargin = args.length (); |
|
|
548 |
|
|
549 if (nargin == 1) |
|
|
550 { |
|
2475
|
551 #if defined (HAVE_ATEXIT) || defined (HAVE_ON_EXIT) |
|
2077
|
552 string arg = args(0).string_value (); |
|
|
553 |
|
|
554 if (! error_state) |
|
|
555 octave_atexit_functions.push (arg); |
|
|
556 else |
|
|
557 error ("atexit: argument must be a string"); |
|
2475
|
558 #else |
|
|
559 gripe_not_supported ("atexit"); |
|
|
560 #endif |
|
2077
|
561 } |
|
|
562 else |
|
|
563 print_usage ("atexit"); |
|
|
564 |
|
|
565 return retval; |
|
|
566 } |
|
|
567 |
|
2689
|
568 DEFUN (octave_config_info, args, , |
|
3301
|
569 "-*- texinfo -*-\n\ |
|
|
570 @deftypefn {Built-in Function} {} octave_config_info (@var{option})\n\ |
|
|
571 Return a structure containing configuration and installation\n\ |
|
|
572 information for Octave.\n\ |
|
2689
|
573 \n\ |
|
3301
|
574 if @var{option} is a string, return the configuration information for the\n\ |
|
2689
|
575 specified option.\n\ |
|
|
576 \n\ |
|
3301
|
577 @end deftypefn") |
|
2162
|
578 { |
|
2689
|
579 octave_value retval; |
|
|
580 |
|
2696
|
581 #if defined (WITH_DYNAMIC_LINKING) && (defined (WITH_DL) || defined (WITH_SHL)) |
|
2689
|
582 bool octave_supports_dynamic_linking = true; |
|
|
583 #else |
|
|
584 bool octave_supports_dynamic_linking = false; |
|
|
585 #endif |
|
|
586 |
|
2162
|
587 Octave_map m; |
|
|
588 |
|
3141
|
589 // XXX FIXME XXX -- should we perform OCTAVE_HOME substitution on these? |
|
|
590 |
|
2162
|
591 m ["default_pager"] = DEFAULT_PAGER; |
|
|
592 m ["prefix"] = OCTAVE_PREFIX; |
|
|
593 m ["exec_prefix"] = OCTAVE_EXEC_PREFIX; |
|
|
594 m ["datadir"] = OCTAVE_DATADIR; |
|
2800
|
595 m ["dld"] = static_cast<double> (octave_supports_dynamic_linking); |
|
2162
|
596 m ["libdir"] = OCTAVE_LIBDIR; |
|
|
597 m ["bindir"] = OCTAVE_BINDIR; |
|
|
598 m ["infodir"] = OCTAVE_INFODIR; |
|
|
599 m ["fcnfiledir"] = OCTAVE_FCNFILEDIR; |
|
|
600 m ["localfcnfiledir"] = OCTAVE_LOCALFCNFILEDIR; |
|
|
601 m ["localstartupfiledir"] = OCTAVE_LOCALSTARTUPFILEDIR; |
|
|
602 m ["startupfiledir"] = OCTAVE_STARTUPFILEDIR; |
|
|
603 m ["localfcnfilepath"] = OCTAVE_LOCALFCNFILEPATH; |
|
|
604 m ["archlibdir"] = OCTAVE_ARCHLIBDIR; |
|
2439
|
605 m ["localarchlibdir"] = OCTAVE_LOCALARCHLIBDIR; |
|
2162
|
606 m ["octfiledir"] = OCTAVE_OCTFILEDIR; |
|
|
607 m ["localoctfilepath"] = OCTAVE_LOCALOCTFILEPATH; |
|
|
608 m ["fcnfilepath"] = OCTAVE_FCNFILEPATH; |
|
|
609 m ["imagepath"] = OCTAVE_IMAGEPATH; |
|
3234
|
610 m ["canonical_host_type"] = CANONICAL_HOST_TYPE; |
|
2162
|
611 m ["configure_options"] = config_opts; |
|
|
612 m ["F77"] = F77; |
|
|
613 m ["FFLAGS"] = FFLAGS; |
|
|
614 m ["FPICFLAG"] = FPICFLAG; |
|
|
615 m ["F2C"] = F2C; |
|
|
616 m ["F2CFLAGS"] = F2CFLAGS; |
|
|
617 m ["FLIBS"] = FLIBS; |
|
|
618 m ["CPPFLAGS"] = CPPFLAGS; |
|
|
619 m ["INCFLAGS"] = INCFLAGS; |
|
|
620 m ["CC"] = CC " " CC_VERSION; |
|
|
621 m ["CFLAGS"] = CFLAGS; |
|
|
622 m ["CPICFLAG"] = CPICFLAG; |
|
|
623 m ["CXX"] = CXX " " CXX_VERSION; |
|
|
624 m ["CXXFLAGS"] = CXXFLAGS; |
|
|
625 m ["CXXPICFLAG"] = CXXPICFLAG; |
|
|
626 m ["LDFLAGS"] = LDFLAGS; |
|
|
627 m ["LIBFLAGS"] = LIBFLAGS; |
|
2675
|
628 m ["RLD_FLAG"] = RLD_FLAG; |
|
2162
|
629 m ["TERMLIBS"] = TERMLIBS; |
|
|
630 m ["LIBS"] = LIBS; |
|
|
631 m ["LEXLIB"] = LEXLIB; |
|
|
632 m ["LIBPLPLOT"] = LIBPLPLOT; |
|
|
633 m ["LIBDLFCN"] = LIBDLFCN; |
|
|
634 m ["DEFS"] = DEFS; |
|
|
635 |
|
2689
|
636 int nargin = args.length (); |
|
|
637 |
|
|
638 if (nargin == 1) |
|
|
639 { |
|
|
640 string arg = args(0).string_value (); |
|
|
641 |
|
|
642 if (! error_state) |
|
|
643 retval = octave_value (m [arg.c_str ()]); |
|
|
644 } |
|
|
645 else if (nargin == 0) |
|
|
646 retval = octave_value (m); |
|
|
647 else |
|
|
648 print_usage ("octave_config_info"); |
|
|
649 |
|
|
650 return retval; |
|
2162
|
651 } |
|
|
652 |
|
1683
|
653 #if defined (__GNUG__) && defined (DEBUG_NEW_DELETE) |
|
2806
|
654 |
|
1683
|
655 int debug_new_delete = 0; |
|
|
656 |
|
|
657 typedef void (*vfp)(void); |
|
|
658 extern vfp __new_handler; |
|
|
659 |
|
|
660 void * |
|
|
661 __builtin_new (size_t sz) |
|
|
662 { |
|
|
663 void *p; |
|
|
664 |
|
|
665 /* malloc (0) is unpredictable; avoid it. */ |
|
|
666 if (sz == 0) |
|
|
667 sz = 1; |
|
2800
|
668 p = malloc (sz); |
|
1683
|
669 while (p == 0) |
|
|
670 { |
|
|
671 (*__new_handler) (); |
|
2800
|
672 p = malloc (sz); |
|
1683
|
673 } |
|
|
674 |
|
|
675 if (debug_new_delete) |
|
|
676 cout << "__builtin_new: " << p << endl; |
|
|
677 |
|
|
678 return p; |
|
|
679 } |
|
|
680 |
|
|
681 void |
|
|
682 __builtin_delete (void *ptr) |
|
|
683 { |
|
|
684 if (debug_new_delete) |
|
|
685 cout << "__builtin_delete: " << ptr << endl; |
|
|
686 |
|
|
687 if (ptr) |
|
|
688 free (ptr); |
|
|
689 } |
|
2806
|
690 |
|
1683
|
691 #endif |
|
|
692 |
|
2806
|
693 void |
|
|
694 symbols_of_toplev (void) |
|
|
695 { |
|
3141
|
696 DEFCONST (argv, , |
|
3020
|
697 "the command line arguments this program was invoked with"); |
|
2806
|
698 |
|
3020
|
699 DEFCONST (program_invocation_name, |
|
3141
|
700 octave_env::get_program_invocation_name (), |
|
3020
|
701 "the full name of the current program or script, including the\n\ |
|
|
702 directory specification"); |
|
|
703 |
|
3141
|
704 DEFCONST (program_name, octave_env::get_program_name (), |
|
3020
|
705 "the name of the current program or script"); |
|
2806
|
706 } |
|
|
707 |
|
1683
|
708 /* |
|
|
709 ;;; Local Variables: *** |
|
|
710 ;;; mode: C++ *** |
|
|
711 ;;; End: *** |
|
|
712 */ |
