old-cross-binutils/gas/input-file.h
Alan Modra 39a45edc07 PR gas/14201
* sb.h (sb_max_power_two): Delete.
	(struct sb): Delete "item" and "pot".  Make "len" a size_t.  Add "max".
	(sb_element): Delete.
	(sb_add_char, sb_add_buffer, sb_skip_comma, sb_skip_write): Update
	prototypes.
	* sb.c (string_count, free_list): Delete.
	(sb_build, sb_kill, sb_check): Rewrite.
	(scrub_from_sb, sb_add_char, sb_add_string, sb_add_buffer,
	sb_skip_white, sb_skip_comma): Replace assorted int params,
	vars and return types with size_t.
	* input-scrub.c: Likewise.
	* macro.c: Likewise.
	* macro.h: Likewise.
	* as.c: Likewise.
	* as.h: Likewise.
	* input-file.h: Likewise.
	* input-file.c: Likewise.
	* read.c: Likewise.
	* app.c: ..or ptrdiff_t.
	* input-file.c (input_file_get): Use ferror.
	(input_file_give_next_buffer): Use input_file_get.
2012-06-07 12:47:23 +00:00

66 lines
2.3 KiB
C

/* input_file.h header for input-file.c
Copyright 1987, 1992, 1993, 2000, 2003, 2005, 2006, 2007, 2012
Free Software Foundation, Inc.
This file is part of GAS, the GNU Assembler.
GAS is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3, or (at your option)
any later version.
GAS is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with GAS; see the file COPYING. If not, write to the Free
Software Foundation, 51 Franklin Street - Fifth Floor, Boston, MA
02110-1301, USA. */
/*"input_file.c":Operating-system dependant functions to read source files.*/
/*
* No matter what the operating system, this module must provide the
* following services to its callers.
*
* input_file_begin() Call once before anything else.
*
* input_file_end() Call once after everything else.
*
* input_file_buffer_size() Call anytime. Returns largest possible
* delivery from
* input_file_give_next_buffer().
*
* input_file_open(name) Call once for each input file.
*
* input_file_give_next_buffer(where) Call once to get each new buffer.
* Return 0: no more chars left in file,
* the file has already been closed.
* Otherwise: return a pointer to just
* after the last character we read
* into the buffer.
* If we can only read 0 characters, then
* end-of-file is faked.
*
* input_file_push() Push state, which can be restored
* later. Does implicit input_file_begin.
* Returns char * to saved state.
*
* input_file_pop (arg) Pops previously saved state.
*
* input_file_close () Closes opened file.
*
* All errors are reported so caller doesn't have to think
* about I/O errors.
*/
char *input_file_give_next_buffer (char *where);
char *input_file_push (void);
size_t input_file_buffer_size (void);
void input_file_begin (void);
void input_file_close (void);
void input_file_end (void);
void input_file_open (char *filename, int pre);
void input_file_pop (char *arg);