Softwareentwicklung in C++ - ASC

176 9. Klassen in C++
1 // memory game card . cpp − d e f i n i t i o n o f the methods o f MemoryGameCard
2
3 #include ”memory game card . h”
4
5 #include < c s t r i n g>
6
7 //−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−
8 /∗ constructor of MemoryGameCard
9 ∗
10 ∗ @param symbol the symbol represented by t h i s card
11 ∗/
12
13 MemoryGameCard : : MemoryGameCard( const char ∗ symbol )
14 {
15 i f ( ! symbol )
16 {
17 symbol = 0;
18 return ;
19 }
20 symbol = new char [ s t r l e n ( symbol ) + 1 ] ;
21 strcpy ( symbol , symbol ) ;
22 }
23
24 //−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−
25 /∗ d e s t r u c t o r of MemoryGameCard
26 ∗/
27
28 MemoryGameCard : : ˜ MemoryGameCard( )
29 {
30 i f ( symbol )
31 delete [ ] symbol ;
32 }
33
34 //−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−
35 /∗
36 ∗ @return the symbol that t h i s card r e p r e s e n t s
37 ∗/
38
39 const char ∗MemoryGameCard : : getSymbol ( )
40 {
41 return ( symbol ) ;
42 }
43
44
45
46 //−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−
47 /∗
48 ∗ @param symbol the symbol represented by t h i s card
49 ∗/
50
51 void MemoryGameCard : : changeSymbol ( const char ∗ symbol )
52 {
53 i f ( symbol )
54 delete [ ] symbol ;
55 i f ( ! symbol )
56 {
57 symbol = 0;
58 return ;
59 }
60 symbol = new char [ s t r l e n ( symbol ) + 1 ] ;
61 strcpy ( symbol , symbol ) ;
62 }