| 1 | /* Declarations for variables relating to reading the source file. |
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| 2 | Used by parsers, lexical analyzers, and error message routines. |
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| 3 | |
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| 4 | Copyright (C) 1993 Free Software Foundation, Inc. |
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| 5 | |
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| 6 | This file is part of GNU CC. |
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| 7 | |
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| 8 | GNU CC is free software; you can redistribute it and/or modify |
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| 9 | it under the terms of the GNU General Public License as published by |
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| 10 | the Free Software Foundation; either version 2, or (at your option) |
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| 11 | any later version. |
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| 12 | |
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| 13 | GNU CC is distributed in the hope that it will be useful, |
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| 14 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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| 16 | GNU General Public License 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 GNU CC; see the file COPYING. If not, write to |
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| 20 | the Free Software Foundation, 59 Temple Place - Suite 330, |
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| 21 | Boston, MA 02111-1307, USA. */ |
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| 22 | |
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| 23 | /* Source file current line is coming from. */ |
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| 24 | extern char *input_filename; |
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| 25 | |
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| 26 | /* Top-level source file. */ |
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| 27 | extern char *main_input_filename; |
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| 28 | |
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| 29 | /* Line number in current source file. */ |
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| 30 | extern int lineno; |
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| 31 | |
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| 32 | /* Stream for reading from input file. */ |
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| 33 | extern FILE *finput; |
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| 34 | |
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| 35 | struct file_stack |
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| 36 | { |
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| 37 | char *name; |
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| 38 | struct file_stack *next; |
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| 39 | int line; |
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| 40 | }; |
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| 41 | |
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| 42 | /* Stack of currently pending input files. |
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| 43 | The line member is not accurate for the innermost file on the stack. */ |
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| 44 | extern struct file_stack *input_file_stack; |
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| 45 | |
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| 46 | /* Incremented on each change to input_file_stack. */ |
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| 47 | extern int input_file_stack_tick; |
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