119 lines
3.7 KiB
C++
119 lines
3.7 KiB
C++
// A lightweight class, with pointer-like methods, that contains an int
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struct X
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{
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int i_;
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constexpr const int &operator*() const { return i_; }
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constexpr int &operator*() { return i_; }
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constexpr const int *get() const { return &i_; }
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constexpr int *get() { return &i_; }
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constexpr const int *operator->() const { return &i_; }
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constexpr int *operator->() { return &i_; }
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constexpr X(int i) : i_(i) {}
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};
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struct XWithImplicitIntStarConversion
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{
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int i_;
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constexpr const int &operator*() const { return i_; }
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constexpr int &operator*() { return i_; }
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constexpr const int *get() const { return &i_; }
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constexpr int *get() { return &i_; }
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constexpr const int *operator->() const { return &i_; }
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constexpr int *operator->() { return &i_; }
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constexpr operator int* () { return &i_; }
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constexpr XWithImplicitIntStarConversion(int i) : i_(i) {}
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};
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struct XWithImplicitConstIntStarConversion
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{
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int i_;
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constexpr const int &operator*() const { return i_; }
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constexpr int &operator*() { return i_; }
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constexpr const int *get() const { return &i_; }
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constexpr int *get() { return &i_; }
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constexpr const int *operator->() const { return &i_; }
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constexpr int *operator->() { return &i_; }
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constexpr operator const int* () const { return &i_; }
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constexpr XWithImplicitConstIntStarConversion(int i) : i_(i) {}
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};
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struct ExplicitX
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{
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int i_;
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constexpr const int &operator*() const { return i_; }
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constexpr int &operator*() { return i_; }
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constexpr const int *get() const { return &i_; }
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constexpr int *get() { return &i_; }
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constexpr const int *operator->() const { return &i_; }
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constexpr int *operator->() { return &i_; }
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constexpr explicit ExplicitX(int i) : i_(i) {}
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};
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struct MoveConstructibleFromX
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{
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int i_;
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constexpr const int &operator*() const { return i_; }
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constexpr int &operator*() { return i_; }
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constexpr const int *get() const { return &i_; }
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constexpr int *get() { return &i_; }
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constexpr const int *operator->() const { return &i_; }
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constexpr int *operator->() { return &i_; }
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constexpr MoveConstructibleFromX(int i) : i_(i) {}
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constexpr MoveConstructibleFromX(X&& x) : i_(x.i_) {}
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};
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struct ExplicitMoveConstructibleFromX
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{
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int i_;
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constexpr const int &operator*() const { return i_; }
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constexpr int &operator*() { return i_; }
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constexpr const int *get() const { return &i_; }
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constexpr int *get() { return &i_; }
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constexpr const int *operator->() const { return &i_; }
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constexpr int *operator->() { return &i_; }
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constexpr ExplicitMoveConstructibleFromX(int i) : i_(i) {}
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constexpr explicit ExplicitMoveConstructibleFromX(X&& x) : i_(x.i_) {}
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};
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struct CopyConstructibleFromX
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{
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int i_;
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constexpr const int &operator*() const { return i_; }
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constexpr int &operator*() { return i_; }
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constexpr const int *get() const { return &i_; }
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constexpr int *get() { return &i_; }
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constexpr const int *operator->() const { return &i_; }
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constexpr int *operator->() { return &i_; }
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constexpr CopyConstructibleFromX(int i) : i_(i) {}
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constexpr CopyConstructibleFromX(const X& x) : i_(x.i_) {}
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};
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struct ExplicitCopyConstructibleFromX
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{
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int i_;
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constexpr const int &operator*() const { return i_; }
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constexpr int &operator*() { return i_; }
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constexpr const int *get() const { return &i_; }
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constexpr int *get() { return &i_; }
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constexpr const int *operator->() const { return &i_; }
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constexpr int *operator->() { return &i_; }
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constexpr ExplicitCopyConstructibleFromX(int i) : i_(i) {}
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constexpr explicit ExplicitCopyConstructibleFromX(const X& x) : i_(x.i_) {}
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};
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