diff options
Diffstat (limited to 'newlib/libc/stdio/wbuf.c')
-rw-r--r-- | newlib/libc/stdio/wbuf.c | 81 |
1 files changed, 0 insertions, 81 deletions
diff --git a/newlib/libc/stdio/wbuf.c b/newlib/libc/stdio/wbuf.c deleted file mode 100644 index 1106829..0000000 --- a/newlib/libc/stdio/wbuf.c +++ /dev/null @@ -1,81 +0,0 @@ -/* No user fns here. Pesch 15apr92. */ - -/* - * Copyright (c) 1990 The Regents of the University of California. - * All rights reserved. - * - * Redistribution and use in source and binary forms are permitted - * provided that the above copyright notice and this paragraph are - * duplicated in all such forms and that any documentation, - * advertising materials, and other materials related to such - * distribution and use acknowledge that the software was developed - * by the University of California, Berkeley. The name of the - * University may not be used to endorse or promote products derived - * from this software without specific prior written permission. - * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR - * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED - * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. - */ - -#if defined(LIBC_SCCS) && !defined(lint) -static char sccsid[] = "%W% (Berkeley) %G%"; -#endif /* LIBC_SCCS and not lint */ - -#include <stdio.h> -#include "local.h" -#include "fvwrite.h" - -/* - * Write the given character into the (probably full) buffer for - * the given file. Flush the buffer out if it is or becomes full, - * or if c=='\n' and the file is line buffered. - */ - -int -__swbuf (c, fp) - register int c; - register FILE *fp; -{ - register int n; - - /* Ensure stdio has been initialized. */ - - CHECK_INIT (fp); - - /* - * In case we cannot write, or longjmp takes us out early, - * make sure _w is 0 (if fully- or un-buffered) or -_bf._size - * (if line buffered) so that we will get called again. - * If we did not do this, a sufficient number of putc() - * calls might wrap _w from negative to positive. - */ - - fp->_w = fp->_lbfsize; - if (cantwrite (fp)) - return EOF; - c = (unsigned char) c; - - /* - * If it is completely full, flush it out. Then, in any case, - * stuff c into the buffer. If this causes the buffer to fill - * completely, or if c is '\n' and the file is line buffered, - * flush it (perhaps a second time). The second flush will always - * happen on unbuffered streams, where _bf._size==1; fflush() - * guarantees that putc() will always call wbuf() by setting _w - * to 0, so we need not do anything else. - */ - - n = fp->_p - fp->_bf._base; - if (n >= fp->_bf._size) - { - if (fflush (fp)) - return EOF; - n = 0; - } - fp->_w--; - *fp->_p++ = c; - if (++n == fp->_bf._size || (fp->_flags & __SLBF && c == '\n')) - if (fflush (fp)) - return EOF; - return c; -} |