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Comparing rxvt-unicode/src/rxvtutil.C (file contents):
Revision 1.13 by root, Mon Feb 21 07:41:03 2011 UTC vs.
Revision 1.22 by sf-exg, Wed Nov 12 12:12:02 2014 UTC

5 * All portions of code are copyright by their respective author/s. 5 * All portions of code are copyright by their respective author/s.
6 * Copyright (c) 2004-2006 Marc Lehmann <schmorp@schmorp.de> 6 * Copyright (c) 2004-2006 Marc Lehmann <schmorp@schmorp.de>
7 * 7 *
8 * This program is free software; you can redistribute it and/or modify 8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by 9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 2 of the License, or 10 * the Free Software Foundation; either version 3 of the License, or
11 * (at your option) any later version. 11 * (at your option) any later version.
12 * 12 *
13 * This program is distributed in the hope that it will be useful, 13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of 14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 * You should have received a copy of the GNU General Public License 18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software 19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. 20 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
21 *----------------------------------------------------------------------*/ 21 *----------------------------------------------------------------------*/
22 22
23// we include emman.c here to avoid relying on a C compiler, or
24// on the c++ compiler not complaining about .c, which is unlikely,
25// but...
26// This must be the first include, because the _GNU_SOURCE and
27// _XOPEN_SOURCE macros, used by emman.c, must be defined before
28// inclusion of any header.
29#include "emman.c"
30
23#include <cstdlib> 31#include <stdlib.h>
24#include <cstring> 32#include <string.h>
25#include <inttypes.h> 33#include <inttypes.h>
26 34
27#include "rxvtutil.h" 35#include "rxvtutil.h"
28
29#if !HAVE_GCC_BUILTINS
30int rxvt_ctz (unsigned int x) CONST
31{
32 int r = 0;
33
34 x &= -x; // this isolates the lowest bit
35
36 if (x & 0xaaaaaaaa) r += 1;
37 if (x & 0xcccccccc) r += 2;
38 if (x & 0xf0f0f0f0) r += 4;
39 if (x & 0xff00ff00) r += 8;
40 if (x & 0xffff0000) r += 16;
41
42 return r;
43}
44
45int rxvt_popcount (unsigned int x) CONST
46{
47 x -= (x >> 1) & 0x55555555;
48 x = ((x >> 2) & 0x33333333) + (x & 0x33333333);
49 x = ((x >> 4) + x) & 0x0f0f0f0f;
50 x *= 0x01010101;
51
52 return x >> 24;
53}
54#endif
55 36
56void * 37void *
57zero_initialized::operator new (size_t s) 38zero_initialized::operator new (size_t s)
58{ 39{
59 void *p = malloc (s); 40 void *p = malloc (s);
82 } 63 }
83 64
84 return temp_buf; 65 return temp_buf;
85} 66}
86 67
87

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