1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
|
#ifndef NARG
#define NARG_N(_1, _2, _3, _4, _5, _6, _7, _8, N, ...) N
#define RSEQ_N 8, 7, 6, 5, 4, 3, 2, 1, 0
#if _MSC_VER && !__INTEL_COMPILER
#define EXPAND(...) __VA_ARGS__
#define NARG_(...) EXPAND(EXPAND(NARG_N) (__VA_ARGS__))
#else
#define NARG_(...) NARG_N(__VA_ARGS__)
#endif
#define NARG(...) NARG_(__VA_ARGS__, RSEQ_N)
#endif
#ifndef foreach
#define CONCAT2(x, y) x##y
#define CONCAT1(x, y) CONCAT2(x,y)
#define CONCATENATE(x, y) CONCAT1(x, y)
#if _MSC_VER && !__INTEL_COMPILER
#undef EXPAND
#define EXPAND(...) __VA_ARGS__
#define FOREACH_0(func) } while (0)
#define FOREACH_1(func, first) func(first); FOREACH_0(func)
#define FOREACH_2(func, first,...) func(first); EXPAND(EXPAND(FOREACH_1)(func, __VA_ARGS__))
#define FOREACH_3(func, first,...) func(first); EXPAND(EXPAND(FOREACH_2)(func, __VA_ARGS__))
#define FOREACH_4(func, first,...) func(first); EXPAND(EXPAND(FOREACH_3)(func, __VA_ARGS__))
#define FOREACH_5(func, first,...) func(first); EXPAND(EXPAND(FOREACH_4)(func, __VA_ARGS__))
#define FOREACH_6(func, first,...) func(first); EXPAND(EXPAND(FOREACH_5)(func, __VA_ARGS__))
#define FOREACH_7(func, first,...) func(first); EXPAND(EXPAND(FOREACH_6)(func, __VA_ARGS__))
#define FOREACH_8(func, first,...) func(first); EXPAND(EXPAND(FOREACH_7)(func, __VA_ARGS__))
#define foreach(func, ...) do { EXPAND(CONCATENATE(FOREACH_, NARG(__VA_ARGS__))(func, __VA_ARGS__))
#else
#define FOREACH_0(func) } while (0)
#define FOREACH_1(func, first) func(first); FOREACH_0(func)
#define FOREACH_2(func, first,...) func(first); FOREACH_1(func, __VA_ARGS__)
#define FOREACH_3(func, first,...) func(first); FOREACH_2(func, __VA_ARGS__)
#define FOREACH_4(func, first,...) func(first); FOREACH_3(func, __VA_ARGS__)
#define FOREACH_5(func, first,...) func(first); FOREACH_4(func, __VA_ARGS__)
#define FOREACH_6(func, first,...) func(first); FOREACH_5(func, __VA_ARGS__)
#define FOREACH_7(func, first,...) func(first); FOREACH_6(func, __VA_ARGS__)
#define FOREACH_8(func, first,...) func(first); FOREACH_7(func, __VA_ARGS__)
#define foreach(func, ...) do { CONCATENATE(FOREACH_, NARG(__VA_ARGS__))(func, __VA_ARGS__)
#endif
#endif
|
