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scopeptr.h
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00021 # ifndef OPENVRML_SCOPEPTR_H
00022 # define OPENVRML_SCOPEPTR_H
00023
00024 # include <stddef.h>
00025 # include <assert.h>
00026 # include "common.h"
00027
00028 namespace OpenVRML {
00029
00030 class Scope;
00031
00032 class OPENVRML_SCOPE ScopePtr {
00033 Scope * scope;
00034 size_t * count;
00035
00036 public:
00037 explicit ScopePtr(Scope * scope = 0);
00038 ScopePtr(const ScopePtr & scopePtr);
00039 ~ScopePtr();
00040
00041 operator bool() const;
00042
00043 ScopePtr & operator=(const ScopePtr & scopePtr);
00044
00045 bool operator==(const ScopePtr & scopePtr) const;
00046
00047 Scope & operator*() const;
00048 Scope * operator->() const;
00049 Scope * get() const;
00050
00051 void reset(Scope * scope = 0);
00052
00053 private:
00054 void dispose();
00055 };
00056
00057 inline ScopePtr::~ScopePtr() {
00058 this->dispose();
00059 }
00060
00061 inline ScopePtr::operator bool() const {
00062 return this->scope;
00063 }
00064
00065 inline bool ScopePtr::operator==(const ScopePtr & scopePtr) const {
00066 return (this->scope == scopePtr.scope);
00067 }
00068
00069 inline Scope & ScopePtr::operator*() const {
00070 assert(this->scope);
00071 return *this->scope;
00072 }
00073
00074 inline Scope * ScopePtr::operator->() const {
00075 assert(this->scope);
00076 return this->scope;
00077 }
00078
00079 inline Scope * ScopePtr::get() const {
00080 assert(this->scope);
00081 return this->scope;
00082 }
00083 }
00084
00085 # endif