1 /*
2 Minetest
3 Copyright (C) 2010-2013 celeron55, Perttu Ahola <celeron55@gmail.com>
4 
5 This program is free software; you can redistribute it and/or modify
6 it under the terms of the GNU Lesser General Public License as published by
7 the Free Software Foundation; either version 2.1 of the License, or
8 (at your option) any later version.
9 
10 This program is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
13 GNU Lesser General Public License for more details.
14 
15 You should have received a copy of the GNU Lesser General Public License along
16 with this program; if not, write to the Free Software Foundation, Inc.,
17 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
18 */
19 
20 #pragma once
21 
22 #define ARRLEN(x) (sizeof(x) / sizeof((x)[0]))
23 
24 #define MYMIN(a, b) ((a) < (b) ? (a) : (b))
25 
26 #define MYMAX(a, b) ((a) > (b) ? (a) : (b))
27 
28 // Requires <algorithm>
29 #define CONTAINS(c, v) (std::find((c).begin(), (c).end(), (v)) != (c).end())
30 
31 // To disable copy constructors and assignment operations for some class
32 // 'Foobar', add the macro DISABLE_CLASS_COPY(Foobar) as a private member.
33 // Note this also disables copying for any classes derived from 'Foobar' as well
34 // as classes having a 'Foobar' member.
35 #define DISABLE_CLASS_COPY(C)        \
36 	C(const C &) = delete;           \
37 	C &operator=(const C &) = delete;
38 
39 #ifndef _MSC_VER
40 	#define UNUSED_ATTRIBUTE __attribute__ ((unused))
41 #else
42 	#define UNUSED_ATTRIBUTE
43 #endif
44 
45 // Fail compilation if condition expr is not met.
46 // Note that 'msg' must follow the format of a valid identifier, e.g.
47 // STATIC_ASSERT(sizeof(foobar_t) == 40), foobar_t_is_wrong_size);
48 #define STATIC_ASSERT(expr, msg) \
49 	UNUSED_ATTRIBUTE typedef char msg[!!(expr) * 2 - 1]
50 
51 // Macros to facilitate writing position vectors to a stream
52 // Usage:
53 //	v3s16 pos(1,2,3);
54 //	mystream << "message " << PP(pos) << std::endl;
55 
56 #define PP(x) "("<<(x).X<<","<<(x).Y<<","<<(x).Z<<")"
57 
58 #define PP2(x) "("<<(x).X<<","<<(x).Y<<")"
59