PR c++/3478
[official-gcc.git] / gcc / input.h
blobff014f6d664f58ed8002d761ed65319aef9a79bd
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, 2000, 2003 Free Software Foundation, Inc.
5 This file is part of GCC.
7 GCC is free software; you can redistribute it and/or modify it under
8 the terms of the GNU General Public License as published by the Free
9 Software Foundation; either version 2, or (at your option) any later
10 version.
12 GCC is distributed in the hope that it will be useful, but WITHOUT ANY
13 WARRANTY; without even the implied warranty of MERCHANTABILITY or
14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
15 for more details.
17 You should have received a copy of the GNU General Public License
18 along with GCC; see the file COPYING. If not, write to the Free
19 Software Foundation, 59 Temple Place - Suite 330, Boston, MA
20 02111-1307, USA. */
22 #ifndef GCC_INPUT_H
23 #define GCC_INPUT_H
25 /* The data structure used to record a location in a translation unit. */
26 /* Long-term, we want to get rid of this and typedef fileline location_t. */
27 struct location_s GTY (())
29 /* The name of the source file involved. */
30 const char *file;
32 /* The line-location in the source file. */
33 int line;
35 typedef struct location_s location_t;
37 struct file_stack
39 struct file_stack *next;
40 location_t location;
43 /* Top-level source file. */
44 extern const char *main_input_filename;
46 extern location_t input_location;
47 #define input_line (input_location.line)
48 #define input_filename (input_location.file)
50 /* Stack of currently pending input files.
51 The line member is not accurate for the innermost file on the stack. */
52 extern struct file_stack *input_file_stack;
54 /* Stack of EXPR_WITH_FILE_LOCATION nested expressions. */
55 extern struct file_stack *expr_wfl_stack;
57 /* Incremented on each change to input_file_stack. */
58 extern int input_file_stack_tick;
60 extern void push_srcloc (const char *name, int line);
61 extern void pop_srcloc (void);
63 #endif