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 | Copyright (C) 1993, 1997 Free Software Foundation, Inc. |
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4 | |
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5 | This file is part of GNU CC. |
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6 | |
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7 | GNU CC is free software; you can redistribute it and/or modify |
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8 | it under the terms of the GNU General Public License as published by |
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9 | the Free Software Foundation; either version 2, or (at your option) |
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10 | any later version. |
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11 | |
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12 | GNU CC is distributed in the hope that it will be useful, |
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13 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
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14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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15 | GNU General Public License 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 GNU CC; see the file COPYING. If not, write to |
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19 | the Free Software Foundation, 59 Temple Place - Suite 330, |
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20 | Boston, MA 02111-1307, USA. */ |
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21 | |
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22 | /* Source file current line is coming from. */ |
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23 | extern char *input_filename; |
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24 | |
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25 | /* Top-level source file. */ |
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26 | extern char *main_input_filename; |
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27 | |
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28 | /* Line number in current source file. */ |
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29 | extern int lineno; |
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30 | |
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31 | /* Stream for reading from input file. */ |
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32 | extern FILE *finput; |
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33 | |
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34 | struct file_stack |
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35 | { |
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36 | char *name; |
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37 | struct file_stack *next; |
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38 | int line; |
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39 | int indent_level; |
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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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