| … | |
… | |
| 30 | ++first; |
30 | ++first; |
| 31 | |
31 | |
| 32 | return first; |
32 | return first; |
| 33 | } |
33 | } |
| 34 | |
34 | |
|
|
35 | template<typename T> |
|
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36 | struct auto_ptr { |
|
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37 | T *p; |
|
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38 | |
|
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39 | auto_ptr() : p(0) { } |
|
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40 | auto_ptr(T *a) : p(a) { } |
|
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41 | |
|
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42 | template<typename A> |
|
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43 | auto_ptr(auto_ptr<A> &a) |
|
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44 | { |
|
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45 | p = a.p; |
|
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46 | a.p = 0; |
|
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47 | } |
|
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48 | |
|
|
49 | // void because it makes sense in our context |
|
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50 | void operator =(T *a) |
|
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51 | { |
|
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52 | delete p; |
|
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53 | p = a; |
|
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54 | } |
|
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55 | |
|
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56 | template<typename A> |
|
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57 | void operator =(auto_ptr<A> &a) |
|
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58 | { |
|
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59 | *this = a.p; |
|
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60 | a.p = 0; |
|
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61 | } |
|
|
62 | |
|
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63 | operator T *() const { return p; } |
|
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64 | |
|
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65 | T *operator ->() const { return p; } |
|
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66 | T &operator *() const { return *p; } |
|
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67 | |
|
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68 | T *get () |
|
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69 | { |
|
|
70 | T *r = p; |
|
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71 | p = 0; |
|
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72 | return r; |
|
|
73 | } |
|
|
74 | }; |
|
|
75 | |
|
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76 | typedef auto_ptr<char> auto_str; |
|
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77 | |
| 35 | #endif |
78 | #endif |
