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 extern int last_command_exit_value;
35 extern int return_catch_flag, return_catch_value;
36 extern jmp_buf return_catch;
38 /* If we are executing a user-defined function then exit with the value
39 specified as an argument. if no argument is given, then the last
40 exit status is used. */
45 return_catch_value = get_numeric_arg (list);
48 return_catch_value = last_command_exit_value;
50 if (return_catch_flag)
51 longjmp (return_catch, 1);
54 builtin_error ("Can only `return' from a function");
55 return (EXECUTION_FAILURE);