Last change
on this file since 1262:61f989e3e525 was
1052:172ce6c3ac6e,
checked in by Alpar Juttner, 20 years ago
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Two examples showing a bit more convenient way to implement named parameters.
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File size:
856 bytes
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Rev | Line | |
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[1052] | 1 | struct TR |
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| 2 | { |
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| 3 | int a; |
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| 4 | int b; |
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| 5 | int c; |
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| 6 | }; |
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| 7 | |
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| 8 | template<class T> struct D |
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| 9 | { |
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| 10 | T t; |
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| 11 | |
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| 12 | D(const T &tt) :t(tt) {}; |
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| 13 | |
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| 14 | template<class X> struct TA : public T { |
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| 15 | X a; |
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| 16 | TA(const T &t,const X& x) : T(t), a(x) {}; |
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| 17 | }; |
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| 18 | template<class X> D<TA<X> > setA(const X &x) { |
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| 19 | return D<TA<X> >(TA<X>(this->t,x)); |
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| 20 | } |
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| 21 | |
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| 22 | template<class X> struct TB : public T { |
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| 23 | X b; |
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| 24 | TB(const T &t,const X& x) : T(t), b(x) {}; |
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| 25 | }; |
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| 26 | |
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| 27 | template<class X> D<TB<X> > setB(const X &x) { |
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| 28 | return D<TB<X> >(TB<X>(this->t,x)); |
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| 29 | } |
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| 30 | |
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| 31 | template<class X> struct TC : public T { |
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| 32 | X c; |
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| 33 | TC(const T &t,const X& x) : T(t), c(x) {}; |
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| 34 | }; |
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| 35 | |
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| 36 | template<class X> D<TC<X> > setC(const X &x) { |
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| 37 | return D<TC<X> >(TC<X>(this->t,x)); |
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| 38 | } |
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| 39 | ~D() |
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| 40 | { |
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| 41 | //Itt csinalunk valamit |
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| 42 | } |
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| 43 | }; |
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| 44 | |
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| 45 | D<TR> d() |
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| 46 | { |
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| 47 | return D<TR>(TR()); |
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| 48 | } |
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| 49 | |
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| 50 | int main() |
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| 51 | { |
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| 52 | d(); |
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| 53 | d().setA(5.5).setB(10).setC(1.5e12); |
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| 54 | } |
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