lib.exception source code

1 module lib.exception;
2 
3 /**
4   Raised when a function receives an argument that has the right type.
5  */
6 class ValueError : Error {
7     this(string msg) {
8         super("ValueError:  " ~ msg);
9     }
10 }
11 
12 
13 /**
14   Raised when a mapping (dictionary) key is not found in the set of existing
15   keys.
16  */
17 class KeyError : Error {
18     this(string msg) {
19         super("KeyError:  " ~ msg);
20     }
21 }
22 
23 
24 /**
25   Raised when a sequence subscript is out of range.
26  */
27 class IndexError : Error {
28     this(string msg) {
29         super("IndexError:  " ~ msg);
30     }
31 }