gf and views
Synopsis:
template<typename Variable, typename Target=matrix_valued, typename Opt=void> class gf;
template<typename Variable, typename Target=matrix_valued, typename Opt=void> class gf_view;
template<typename Variable, typename Target=matrix_valued, typename Opt=void> class gf_const_view;
Hereafter, we describe the containers, the views.
Properties specific to each specializations are described in a specific page, linked in the table below.
Template parameters
| Template parameter |
Accepted type |
Access in the class |
Meaning |
|---|
| Variable |
Cf table below |
variable_t |
The domain of definition of the
Green function |
| Target |
Cf Table below |
target_t |
The target space of the function |
| Opt |
void |
option_t |
Currently unused |
The various specializations of the container and its views are decribed in in the specializations page.
The Variable template parameter can take the following values:
| Variable |
Meaning |
|---|
| imfreq |
Imaginary Matsubara frequency |
| imtime |
Imaginary Matsubara time |
| refreq |
Real frequency |
| retime |
Real time |
| legendre |
Legendre polynomial representation |
| block_index |
Block Green function |
| cartesian_product<Gs…> |
Cartesian product of gf<Gs> … functions. |
The Target template parameter can take the following values:
| Target |
Meaning |
|---|
| scalar_valued |
The function is scalar valued (double, complex…). |
| matrix_valued [default] |
The function is matrix valued. |
| tensor_valued<R> |
The function is tensor valued with rank |
Member types
| Member type |
Definitions |
|---|
| view_type |
The corresponding view type |
| regular_type |
The corresponding regular type i.e. the container itself |
| mesh_t |
The mesh |
| target_shape_t |
Type storing the information to construct the target space,
Depends on the specialisation (a shape for matrix_valued
gf, empty for a scalar valued, … Cf Specialisations) |
| data_t |
Type of the data array |
| singularity_t |
Type of the singularity (tail, nothing…) |
| symmetry_t |
Symmetry (unused at this stage). |
Member functions
| Member function |
Meaning |
|---|
| (constructor) |
|
| (destructor) |
|
| operator () |
Evaluation on a point of the domain |
| operator [] |
Access to the value on the mesh |
| mesh |
Access to the mesh |
| singularity |
Access to the singularity |
| symmetry |
Access to the symmetry |
| data |
Direct view of the data [Advanced] |
| operator = |
Assigns values to the container |
| operator +=,-=,*=,/= |
compound assignment operators |