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