1 This file is return.def, from which is created return.c.
2 It implements the builtin "return" in Bash.
4 Copyright (C) 1987, 1989, 1991 Free Software Foundation, Inc.
6 This file is part of GNU Bash, the Bourne Again SHell.
8 Bash is free software; you can redistribute it and/or modify it under
9 the terms of the GNU General Public License as published by the Free
10 Software Foundation; either version 2, or (at your option) any later
13 Bash is distributed in the hope that it will be useful, but WITHOUT ANY
14 WARRANTY; without even the implied warranty of MERCHANTABILITY or
15 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
18 You should have received a copy of the GNU General Public License along
19 with Bash; see the file COPYING. If not, write to the Free Software
20 Foundation, 59 Temple Place, Suite 330, Boston, MA 02111 USA.
26 $FUNCTION return_builtin
28 Causes a function to exit with the return value specified by N. If N
29 is omitted, the return status is that of the last command.
34 #if defined (HAVE_UNISTD_H)
36 # include <sys/types.h>
44 extern int last_command_exit_value;
45 extern int subshell_environment;
46 extern int return_catch_flag, return_catch_value;
48 /* If we are executing a user-defined function then exit with the value
49 specified as an argument. if no argument is given, then the last
50 exit status is used. */
55 return_catch_value = list ? get_numeric_arg (list, 1) : last_command_exit_value;
57 if (return_catch_flag)
58 longjmp (return_catch, 1);
61 builtin_error ("can only `return' from a function or sourced script");
62 return (EXECUTION_FAILURE);