root/ext/dba/libcdb/uint32.c

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DEFINITIONS

This source file includes following definitions.
  1. uint32_pack
  2. uint32_unpack

   1 /*
   2    +----------------------------------------------------------------------+
   3    | PHP Version 7                                                        |
   4    +----------------------------------------------------------------------+
   5    | Copyright (c) 1997-2016 The PHP Group                                |
   6    +----------------------------------------------------------------------+
   7    | This source file is subject to version 3.01 of the PHP license,      |
   8    | that is bundled with this package in the file LICENSE, and is        |
   9    | available through the world-wide-web at the following url:           |
  10    | http://www.php.net/license/3_01.txt                                  |
  11    | If you did not receive a copy of the PHP license and are unable to   |
  12    | obtain it through the world-wide-web, please send a note to          |
  13    | license@php.net so we can mail you a copy immediately.               |
  14    +----------------------------------------------------------------------+
  15    | Author: Marcus Boerger <helly@php.net>                               |
  16    +----------------------------------------------------------------------+
  17  */
  18 
  19 /* $Id$ */
  20 
  21 /* incorporated from D.J.Bernstein's cdb-0.75 (http://cr.yp.to/cdb.html)*/
  22 
  23 #ifdef HAVE_CONFIG_H
  24 #include "config.h"
  25 #endif
  26 
  27 #include "php.h"
  28 
  29 #include "uint32.h"
  30 
  31 /* {{{ uint32_pack */
  32 void uint32_pack(char *out, uint32 in)
  33 {
  34         out[0] = in&0xff; in>>=8;
  35         out[1] = in&0xff; in>>=8;
  36         out[2] = in&0xff; in>>=8;
  37         out[3] = in&0xff;
  38 }
  39 /* }}} */
  40 
  41 /* {{{ uint32_unpack */
  42 void uint32_unpack(const char *in, uint32 *out)
  43 {
  44         *out = (((uint32)(unsigned char)in[3])<<24) |
  45                (((uint32)(unsigned char)in[2])<<16) |
  46                (((uint32)(unsigned char)in[1])<<8) |
  47                (((uint32)(unsigned char)in[0]));
  48 }
  49 /* }}} */

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