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
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
#![macro_escape]
#[macro_export]
macro_rules! panic {
() => (
panic!("explicit panic")
);
($msg:expr) => ({
static _MSG_FILE_LINE: (&'static str, &'static str, uint) = ($msg, file!(), line!());
::core::panicking::panic(&_MSG_FILE_LINE)
});
($fmt:expr, $($arg:tt)*) => ({
static _FILE_LINE: (&'static str, uint) = (file!(), line!());
::core::panicking::panic_fmt(format_args!($fmt, $($arg)*), &_FILE_LINE)
});
}
#[macro_export]
macro_rules! assert {
($cond:expr) => (
if !$cond {
panic!(concat!("assertion failed: ", stringify!($cond)))
}
);
($cond:expr, $($arg:tt)*) => (
if !$cond {
panic!($($arg)*)
}
);
}
#[macro_export]
macro_rules! assert_eq {
($cond1:expr, $cond2:expr) => ({
let c1 = $cond1;
let c2 = $cond2;
if c1 != c2 || c2 != c1 {
panic!("expressions not equal, left: {}, right: {}", c1, c2);
}
})
}
#[macro_export]
macro_rules! debug_assert_eq {
($($a:tt)*) => ({
if cfg!(not(ndebug)) {
assert_eq!($($a)*);
}
})
}
#[macro_export]
macro_rules! debug_assert {
($($arg:tt)*) => (if cfg!(not(ndebug)) { assert!($($arg)*); })
}
#[macro_export]
macro_rules! try {
($e:expr) => (match $e { Ok(e) => e, Err(e) => return Err(e) })
}
#[macro_export]
macro_rules! write {
($dst:expr, $($arg:tt)*) => ((&mut *$dst).write_fmt(format_args!($($arg)*)))
}
#[macro_export]
macro_rules! writeln {
($dst:expr, $fmt:expr $($arg:tt)*) => (
write!($dst, concat!($fmt, "\n") $($arg)*)
)
}
#[macro_export]
macro_rules! unreachable { () => (panic!("unreachable code")) }