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Annotation of prex-old/usr/lib/libc/stdio/local.h, Revision 1.1.1.1

1.1       nbrk        1: /*-
                      2:  * Copyright (c) 1990, 1993
                      3:  *     The Regents of the University of California.  All rights reserved.
                      4:  *
                      5:  * This code is derived from software contributed to Berkeley by
                      6:  * Chris Torek.
                      7:  *
                      8:  * Redistribution and use in source and binary forms, with or without
                      9:  * modification, are permitted provided that the following conditions
                     10:  * are met:
                     11:  * 1. Redistributions of source code must retain the above copyright
                     12:  *    notice, this list of conditions and the following disclaimer.
                     13:  * 2. Redistributions in binary form must reproduce the above copyright
                     14:  *    notice, this list of conditions and the following disclaimer in the
                     15:  *    documentation and/or other materials provided with the distribution.
                     16:  * 3. Neither the name of the University nor the names of its contributors
                     17:  *    may be used to endorse or promote products derived from this software
                     18:  *    without specific prior written permission.
                     19:  *
                     20:  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
                     21:  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
                     22:  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
                     23:  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
                     24:  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
                     25:  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
                     26:  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
                     27:  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
                     28:  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
                     29:  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
                     30:  * SUCH DAMAGE.
                     31:  *
                     32:  *     @(#)local.h     8.3 (Berkeley) 7/3/94
                     33:  */
                     34:
                     35: /*
                     36:  * Information local to this implementation of stdio,
                     37:  * in particular, macros and private variables.
                     38:  */
                     39:
                     40: extern int     __sflush(FILE *);
                     41: extern FILE    *__sfp(void);
                     42: extern int     __srefill(FILE *);
                     43: extern int     __sread(FILE *, char *, int);
                     44: extern int     __swrite(FILE *, char const *, int);
                     45: extern fpos_t  __sseek(FILE *, fpos_t, int);
                     46: extern int     __sclose(FILE *);
                     47: extern void    __sinit(void);
                     48: extern void    _cleanup(void);
                     49: extern void    (*__cleanup)(void);
                     50: extern void    __smakebuf(FILE *);
                     51: extern int     _fwalk(int (*)(FILE *));
                     52: extern int     __swsetup(FILE *);
                     53: extern int     __sflags(const char *, int *);
                     54:
                     55: extern int     __sdidinit;
                     56:
                     57: /*
                     58:  * Return true iff the given FILE cannot be written now.
                     59:  */
                     60: #define        cantwrite(fp) \
                     61:        ((((fp)->_flags & __SWR) == 0 || (fp)->_bf._base == NULL) && \
                     62:         __swsetup(fp))
                     63:
                     64: /*
                     65:  * Test whether the given stdio file has an active ungetc buffer;
                     66:  * release such a buffer, without restoring ordinary unread data.
                     67:  */
                     68: #define        HASUB(fp) ((fp)->_ub._base != NULL)
                     69: #define        FREEUB(fp) { \
                     70:        (fp)->_ub._base = NULL; \
                     71: }