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
102 lines
3.0 KiB
C++
102 lines
3.0 KiB
C++
#include "./common.hpp"
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double x=1,y=2;
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template < typename Expr >
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void test1( Expr expr) {
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TEST(expr);
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TEST(eval( expr, x_=5));
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std::cout<<"-------------"<<std::endl;
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}
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template < typename Expr >
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void test2( Expr const & expr) {
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// std::cout << " type is " << triqs::utility::typeid_name(expr) << std::endl;
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std::cout<< " ------ start test2 -----------------"<<std::endl ;
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TEST(expr);
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TEST(eval(expr,x_ =1, y_ =2));
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TEST(eval(expr,x_ =1));
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TEST(eval(expr,x_ =x_ + y_));
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TEST(eval( eval ( expr,x_ =x_ + y_), x_ = 1, y_ = 2) );
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}
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int main() {
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F1 f(7);
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test1( 5*x_) ;
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test2(x_ + 2*y_);
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test2(x_ + 2*y_ + x_);
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test2(x_/2.0 + 2*y_);
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test2( f(x_) );
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test2( f(x_) + 2*y_);
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test2( 1/f(x_) + 2*y_);
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#ifdef LONG
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test2( 1/f(x_) + 2*y_ + x_ + 2*x_+ x_ + 2*x_+ x_ + 2*x_+ x_ + 2*x_+ x_ + 2*x_+ x_ + 2*x_+ x_ + 2*x_+ x_ + 2*x_+ x_ + 2*x_+ x_ + 2*x_+ x_ + 2*x_+ x_ + 2*x_+ x_ + 2*x_+ x_ + 2*x_);
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#endif
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#ifdef LONG2
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test2( 2*x_+ x_ + 2*x_+ x_ + 2*x_+ x_ + 2*x_+ x_ + 2*x_+ x_ + 2*x_+ x_ + 2*x_+ x_ + 2*x_+ x_ + 2*x_+ x_ + 2*x_+ x_ + 2*x_+ x_ + 2*x_+ x_ + 2*x_+ x_ + 2*x_ + 1/f(x_) + 2*y_ + x_ );
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#endif
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{
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auto expr1 = x_ *2 ;
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auto myf1 = make_function(expr1, x_);
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std::cout<< myf1(2) << " = "<< 4 << std::endl;
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auto expr = x_ + 2*y_;
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auto myf = make_function(expr, x_,y_);
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auto myf_r = make_function(expr, y_,x_);
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std::cout<< myf(2,5) << " = "<< 12 << std::endl;
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std::cout<< myf(5,2) << " = " << 9<<std::endl;
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std::cout<< myf_r(2,5) << " = "<< 9 <<std::endl;
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std::cout<< myf_r(5,2) << " = "<< 12 << std::endl;
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std::cout<<"-------------"<<std::endl;
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}
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{
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// testing the LHS wrting on an object caught by ref
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F1 f(7);
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std::cerr << " operator(double) still ok "<< f(2) << std::endl;
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std::cout<< " f.v before assign "<<f.v<<" "<< std::endl;
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f(x_ ) << 8*x_ ;
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//f(x_ + y_) << 8*x_ ;// leads to a compile error as expected
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// test.cpp:129:14: error: no viable overloaded '='
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// f(x_ + y_) << 8*x_ ;
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// ~~~~~~~~~~ ^ ~~~~
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std::cout<< " f.v after assign "<<f.v<<" "<< std::endl;
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std::cout<<"-------------"<<std::endl;
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std::cerr <<F1{9}(2,x_, F1{2})<<std::endl;
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auto expr = F1{9}(x_);
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expr << 7*x_;
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std::cerr << expr << std::endl ;
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F1{9}(x_ ) << 8*x_ ;
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std::cerr<<"-------------"<<std::endl;
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}
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{
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// testing fnt of 2 variables
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F2 ff;
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std::cout<<"expr = "<< (ff(x_,y_) + 2*y_)<< std::endl;
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std::cout<<"eval(expr,x_ =1, y_ =2) = "<< eval(ff(x_,y_) + 2*y_ , x_=x, y_=y) << " and it should be "<< ff(x,y) + 2*y <<std::endl;
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auto tmp = ff(2.0, y_) ;
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std::cout<<" tmp =" << tmp<<std::endl;
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std::cout<<"another = "<< eval( tmp , x_=x) << std::endl;
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std::cout<<"another = "<< eval( ff(x_,2) , x_=x) <<std::endl;
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std::cout<<"-------------"<<std::endl;
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}
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{
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// testing expression if
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TEST(eval( if_else( true , 2*x_ , y_) , x_=1, y_=3));
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TEST(eval( if_else( false , 2*x_ , y_) ,x_=1, y_=3));
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TEST(eval( if_else( x_>y_ , 2*x_ , y_) ,x_=1, y_=3));
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}
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std::cout << (x_ < y_) <<std::endl;
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}
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