UFO: Alien Invasion
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cxx.h
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1#pragma once
2
3#define GCC_ATLEAST(major, minor) (defined __GNUC__ && (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor))))
4
5#ifndef __has_extension // clang feature detection
6# ifdef __has_feature
7# define __has_extension __has_feature
8# else
9# define __has_extension(x) 0
10# endif
11#endif
12
13#define CXX11(gcc_major, gcc_minor, msc_ver, clang_feature) ( \
14 __cplusplus >= 201103L || \
15 (defined __GXX_EXPERIMENTAL_CXX0X__ && GCC_ATLEAST((gcc_major), (gcc_minor))) || \
16 (defined _MSC_VER && (msc_ver) != 0 && _MSC_VER >= (msc_ver)) || \
17 __has_extension(clang_feature) \
18)
19
20#if CXX11(4, 4, 0, cxx_defaulted_functions)
21# define DEFAULT = default
22#else
23# define DEFAULT {}
24#endif
25
26#if CXX11(4, 4, 0, cxx_deleted_functions)
27# define DELETED = delete
28#else
29# define DELETED
30#endif
31
32#if !CXX11(4, 7, 1400, cxx_override_control)
33# define override
34#endif
35
36#ifndef __GNUC__
37# define __attribute__(x)
38#endif
39
40#ifdef _MSC_VER
41# define __func__ __FUNCTION__
42# define __PRETTY_FUNCTION__ __FUNCSIG__
43# if _MSC_VER < 1900
44# define snprintf _snprintf
45# endif
46# if _MSC_VER < 1800
47# define round(x) ((x) < 0 ? -std::floor(0.5 - (x)) : std::floor(0.5 + (x)))
48# endif
49#else
50# if __cplusplus < 201103L
51# ifndef nullptr
52/* not typesafe as the real nullptr from c++11 */
53# define nullptr 0
54# endif
55# endif
56#endif
57
58#if __cplusplus >= 201103L
59# define register
60#endif