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 1, 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, 675 Mass Ave, Cambridge, MA 02139, 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)
41 extern int last_command_exit_value;
42 extern int return_catch_flag, return_catch_value;
44 /* If we are executing a user-defined function then exit with the value
45 specified as an argument. if no argument is given, then the last
46 exit status is used. */
51 return_catch_value = list ? get_numeric_arg (list) : last_command_exit_value;
53 if (return_catch_flag)
54 longjmp (return_catch, 1);
57 builtin_error ("can only `return' from a function or sourced script");
58 return (EXECUTION_FAILURE);