1/* Declarations for variables relating to reading the source file. 2 Used by parsers, lexical analyzers, and error message routines. 3 Copyright (C) 1993, 1997, 1998 Free Software Foundation, Inc. 4 5This file is part of GNU CC. 6 7GNU CC is free software; you can redistribute it and/or modify 8it under the terms of the GNU General Public License as published by 9the Free Software Foundation; either version 2, or (at your option) 10any later version. 11 12GNU CC is distributed in the hope that it will be useful, 13but WITHOUT ANY WARRANTY; without even the implied warranty of 14MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 15GNU General Public License for more details. 16 17You should have received a copy of the GNU General Public License 18along with GNU CC; see the file COPYING. If not, write to 19the Free Software Foundation, 59 Temple Place - Suite 330, 20Boston, MA 02111-1307, USA. */ 21 22/* Source file current line is coming from. */ 23extern char *input_filename; 24 25/* Top-level source file. */ 26extern char *main_input_filename; 27 28/* Line number in current source file. */ 29extern int lineno; 30 31/* Stream for reading from input file. */ 32extern FILE *finput; 33 34struct file_stack 35 { 36 char *name; 37 struct file_stack *next; 38 int line; 39 int indent_level; 40 }; 41 42/* Stack of currently pending input files. 43 The line member is not accurate for the innermost file on the stack. */ 44extern struct file_stack *input_file_stack; 45 46/* Incremented on each change to input_file_stack. */ 47extern int input_file_stack_tick; 48