Add abstrat type matrix and data.
[Faustine.git] / interpretor / preprocessor / faust-0.9.47mr3 / compiler / tlib / smartpointer.hh
1 /************************************************************************
2 ************************************************************************
3 FAUST compiler
4 Copyright (C) 2003-2004 GRAME, Centre National de Creation Musicale
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13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
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19 ************************************************************************
20 ************************************************************************/
21
22
23
24 #ifndef _SMARTPOINTER_H
25 #define _SMARTPOINTER_H
26
27 //#include <iostream>
28 #include <cstdlib>
29 #include <cstdio>
30
31
32
33 template<class T>
34 class P {
35 private:
36 T* p;
37 public:
38 P() : p(0) { }
39 P(T* rawptr) : p(rawptr) { }
40 P(const P& ptr) : p((T*)ptr) { }
41
42 template<class T2>
43 P(const P<T2>& ptr) : p((T*)ptr) { }
44
45 ~P() { }
46
47 operator T*() const { return p; }
48 T& operator*() const {
49 if (p == 0) {
50 //throw std::runtime_error("Null dereference in P<?>::operator*() const ");
51 fprintf(stderr, "Null dereference in P<?>::operator*() const \n ");
52 exit(1);
53 }
54 return *p;
55 }
56 T* operator->() const {
57 if (p == 0) {
58 fprintf(stderr, "Null dereference in P<?>::operator->() const \n ");
59 //throw std::runtime_error("Null dereference in P<?>::operator->() const ");
60 //std::cerr << "Null dereference in P<?>::operator->() const " << std::endl;
61 exit(1);
62 }
63 return p;
64 }
65 T* pointee() const { return p;}
66 P& operator=(T* p_) { p = p_; return *this;}
67
68 P& operator=(const P<T>& p_) { return operator=((T *) p_); }
69 template<class T2> P& cast(T2* p_) { return operator=(dynamic_cast<T*>(p_)); }
70 template<class T2> P& cast(const P<T2>& p_) { return operator=(dynamic_cast<T*>(p_)); }
71 };
72
73
74 #endif