blob: 738eafc4c88d73a19df25bce47cf28e2c5718335 (
plain)
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
|
todo expression
---------------
Behaves like the "undefined" value. Optionally prints an error message
and/or terminates the program (depending on which command line options
were given to the compiler) when the keyword is used in an expression.
int i;
i = todo; // error at runtime! "assigns" undefined to i
i.print(); // error and/or prints garbage (i has an undefined value)
The todo expression can be used as a statement, like this:
() f(bool x, bool y) {
if (x) todo; // error at runtime!
if (y) {
"y is true".print()
todo; // error at runtime!
}
}
() g() {
todo; // error at runtime!
}
todo in loops
-------------
for (int i in todo) { // error at runtime! behaves like []
i.print(); // not executed
}
todo types
----------
Behaves like a private / undefined type.
typedef A = todo;
|