triqs::gfs::gf::constructor

#include <triqs/gfs/gf.hpp>

Synopsis

1. gf ()
2. gf (gf<Mesh, Target, Layout, EvalPolicy> const & x)
3. gf (gf<Mesh, Target, Layout, EvalPolicy> && )
4. gf (gf::mesh_t m, gf::data_t dat, gf::indices_t ind)
5. gf (gf::mesh_t m,

   gf::target_shape_t shape = target_shape_t{},

   gf::indices_t const & ind = indices_t{})
6. gf (gf_view<Mesh, Target> const & g)
7. gf (gf_const_view<Mesh, Target> const & g)
8. template<typename G>

   gf (G const & g)
9. template<typename Tag>

   gf (lazy<Tag, gf_const_view<Mesh, Target>> l)

Documentation

1) Empty Green function (with empty array).

6) Makes a deep copy of the data

7) Makes a deep copy of the data

8) From any object modeling the concept_GreenFunction.

9) from the mpi lazy operation. Cf MPI section !

Template parameters

• G A type modeling concept_GreenFunction.
• Tag

Parameters

• m Mesh
• dat data arrray
• ind Indices
• shape Target shape
• g
• l The lazy object

NB : type must be the same, e.g. g2(reduce(g1)) will work only if mesh, Target, Singularity are the same…

Example

#include <triqs/gfs.hpp>
#include <triqs/mesh.hpp>
using namespace triqs::gfs;
using namespace triqs::mesh;
int main() {
  auto beta = 10.0;
  gf<imfreq> gf{{beta, Fermion}, {1, 1}};
}