diff options
Diffstat (limited to 'libio/iogetwline.c')
-rw-r--r-- | libio/iogetwline.c | 113 |
1 files changed, 0 insertions, 113 deletions
diff --git a/libio/iogetwline.c b/libio/iogetwline.c deleted file mode 100644 index e60a590cc4..0000000000 --- a/libio/iogetwline.c +++ /dev/null @@ -1,113 +0,0 @@ -/* Copyright (C) 1993-2017 Free Software Foundation, Inc. - This file is part of the GNU C Library. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - The GNU C Library 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 - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; if not, see - <http://www.gnu.org/licenses/>. - - As a special exception, if you link the code in this file with - files compiled with a GNU compiler to produce an executable, - that does not cause the resulting executable to be covered by - the GNU Lesser General Public License. This exception does not - however invalidate any other reasons why the executable file - might be covered by the GNU Lesser General Public License. - This exception applies to code released by its copyright holders - in files containing the exception. */ - -#include "libioP.h" -#include <string.h> -#include <wchar.h> - -#ifdef _LIBC -# define wmemcpy __wmemcpy -#endif - -_IO_size_t -_IO_getwline (_IO_FILE *fp, wchar_t *buf, _IO_size_t n, wint_t delim, - int extract_delim) -{ - return _IO_getwline_info (fp, buf, n, delim, extract_delim, (wint_t *) 0); -} - -/* Algorithm based on that used by Berkeley pre-4.4 fgets implementation. - - Read chars into buf (of size n), until delim is seen. - Return number of chars read (at most n). - Does not put a terminating '\0' in buf. - If extract_delim < 0, leave delimiter unread. - If extract_delim > 0, insert delim in output. */ - -_IO_size_t -_IO_getwline_info (_IO_FILE *fp, wchar_t *buf, _IO_size_t n, wint_t delim, - int extract_delim, wint_t *eof) -{ - wchar_t *ptr = buf; - if (eof != NULL) - *eof = 0; - if (__builtin_expect (fp->_mode, 1) == 0) - _IO_fwide (fp, 1); - while (n != 0) - { - _IO_ssize_t len = (fp->_wide_data->_IO_read_end - - fp->_wide_data->_IO_read_ptr); - if (len <= 0) - { - wint_t wc = __wuflow (fp); - if (wc == WEOF) - { - if (eof) - *eof = wc; - break; - } - if (wc == delim) - { - if (extract_delim > 0) - *ptr++ = wc; - else if (extract_delim < 0) - _IO_sputbackc (fp, wc); - if (extract_delim > 0) - ++len; - return ptr - buf; - } - *ptr++ = wc; - n--; - } - else - { - wchar_t *t; - if ((_IO_size_t) len >= n) - len = n; - t = wmemchr ((void *) fp->_wide_data->_IO_read_ptr, delim, len); - if (t != NULL) - { - _IO_size_t old_len = ptr - buf; - len = t - fp->_wide_data->_IO_read_ptr; - if (extract_delim >= 0) - { - ++t; - if (extract_delim > 0) - ++len; - } - wmemcpy ((void *) ptr, (void *) fp->_wide_data->_IO_read_ptr, - len); - fp->_wide_data->_IO_read_ptr = t; - return old_len + len; - } - wmemcpy ((void *) ptr, (void *) fp->_wide_data->_IO_read_ptr, len); - fp->_wide_data->_IO_read_ptr += len; - ptr += len; - n -= len; - } - } - return ptr - buf; -} |