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Member "dateutils-0.4.6/lib/nifty.h" (19 Mar 2019, 2316 Bytes) of package /linux/privat/dateutils-0.4.6.tar.xz:


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    1 /*** nifty.h -- generally handy macroes
    2  *
    3  * Copyright (C) 2009-2019 Sebastian Freundt
    4  *
    5  * Author:  Sebastian Freundt <freundt@ga-group.nl>
    6  *
    7  * This file is part of dateutils.
    8  *
    9  * Redistribution and use in source and binary forms, with or without
   10  * modification, are permitted provided that the following conditions
   11  * are met:
   12  *
   13  * 1. Redistributions of source code must retain the above copyright
   14  *    notice, this list of conditions and the following disclaimer.
   15  *
   16  * 2. Redistributions in binary form must reproduce the above copyright
   17  *    notice, this list of conditions and the following disclaimer in the
   18  *    documentation and/or other materials provided with the distribution.
   19  *
   20  * 3. Neither the name of the author nor the names of any contributors
   21  *    may be used to endorse or promote products derived from this
   22  *    software without specific prior written permission.
   23  *
   24  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR "AS IS" AND ANY EXPRESS OR
   25  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
   26  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
   27  * DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
   28  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
   29  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
   30  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
   31  * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
   32  * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
   33  * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
   34  * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
   35  *
   36  ***/
   37 
   38 #if !defined INCLUDED_nifty_h_
   39 #define INCLUDED_nifty_h_
   40 
   41 #if !defined LIKELY
   42 # define LIKELY(_x) __builtin_expect((_x), 1)
   43 #endif  /* !LIKELY */
   44 #if !defined UNLIKELY
   45 # define UNLIKELY(_x)   __builtin_expect((_x), 0)
   46 #endif  /* UNLIKELY */
   47 
   48 #if !defined UNUSED
   49 # define UNUSED(_x) _x __attribute__((unused))
   50 #endif  /* !UNUSED */
   51 
   52 #if !defined ALGN
   53 # define ALGN(_x, to)   _x __attribute__((aligned(to)))
   54 #endif  /* !ALGN */
   55 
   56 #if !defined countof
   57 # define countof(x) (sizeof(x) / sizeof(*x))
   58 #endif  /* !countof */
   59 
   60 #if !defined with
   61 # define with(args...)  for (args, *__ep__ = (void*)1; __ep__; __ep__ = 0)
   62 #endif  /* !with */
   63 
   64 #endif  /* INCLUDED_nifty_h_ */