mirror of
https://github.com/triqs/dft_tools
synced 2024-11-01 11:43:47 +01:00
2c542647fd
- change : all objects are by default stored now by reference, not by copy any more. Unless the trait force_copy_in_expr is true. - rvalue refs are moved into the tree - simplifies a lot the writing of lazy method, objects. - added a macro for methods - tests ok. Further check needed to control absence of copies... - improved documentation
43 lines
1.2 KiB
C++
43 lines
1.2 KiB
C++
#include <triqs/clef/clef.hpp>
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#include <triqs/clef/io.hpp>
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#define TEST(X) std::cout << BOOST_PP_STRINGIZE((X)) << " ---> "<< (X) <<std::endl;
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struct F1{
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double v;
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F1(double v_): v(v_){}
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F1(F1 const &) = delete; // non copyable
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F1(F1 &&x) : v(x.v) { std::cerr << "Moving F1 "<< v<<std::endl;}
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double operator() (double x) const { return 10*x;}
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TRIQS_CLEF_IMPLEMENT_LAZY_CALL(F1);
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template<typename Fnt> friend void triqs_clef_auto_assign (F1 & x, Fnt f) { x.v++; std::cerr<< " called triqs_clef_auto_assign "<< f(100)<<std::endl;}
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friend std::ostream & operator<<(std::ostream & out, F1 const & x) { return out<<"F1";}
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};
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struct F2 {
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double v;
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F2() {v=0;}
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double operator()(double x, double y) const { return 10*x + y;}
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TRIQS_CLEF_IMPLEMENT_LAZY_CALL(F2);
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template<typename Fnt> friend void triqs_clef_auto_assign (F2 const & x, Fnt f) { std::cerr<< " called F2 triqs_clef_auto_assign "<< f(10,20)<<std::endl;}
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friend std::ostream & operator<<(std::ostream & out, F2 const & x) { return out<<"F2";}
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};
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using namespace triqs::clef;
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triqs::clef::placeholder <1> x_;
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triqs::clef::placeholder <2> y_;
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triqs::clef::placeholder <3> z_;
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namespace tql= triqs::clef;
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