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Subversion Repositories openrisc_2011-10-31
[/] [openrisc/] [trunk/] [gnu-src/] [binutils-2.18.50/] [gas/] [input-file.h] - Rev 552
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/* input_file.h header for input-file.c Copyright 1987, 1992, 1993, 2000, 2003, 2005, 2006, 2007 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); unsigned int 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);
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