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dft_tools/test/triqs/clef/function.cpp
Olivier Parcollet 2c542647fd clef : new version using lvalues and moving rvalues
- 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
2013-09-08 15:04:12 +02:00

42 lines
936 B
C++

#include "./common.hpp"
int main() {
F1 f(7);
TEST((x_ >> (2*x_ +1) )(10));
triqs::clef::function<double(double,double)> f2;
f2(x_,y_) = x_ + y_;
TEST(f2(2,3));
f2(x_,y_) << x_ + 2*y_;
TEST(f2(2,3));
std::function<double(double,double)> ff2(f2);
TEST(ff2(2,3));
triqs::clef::function<double(double)> f1 ( f(x_) + 2*x_ ,x_);
TEST(f1(3));
triqs::clef::function<double(double,double)> g2;
g2(x_,y_) << x_ - y_ + f2(x_,2*y_);
TEST(g2(2,3));
std::function<double(double,double)> ff8 = make_function( x_ + y_, x_, y_);
TEST(ff8(2,3));
std::function<double(double)> f3;
f3 = x_>> f(x_) + 2*x_;
TEST(f3(3));
auto h = make_function( 2*x_ + y_ + 1, x_);
// is a lazy expression expression with placeholder y_, returning a function...
std::cout << tql::eval(h, y_=1) << std::endl;
TEST(tql::eval( h, y_=1) (10));
TEST(h);
auto hh = var(x_, y_) >> 2*x_ + y_;
std::cout << hh (3,1) << std::endl;
}