.. highlight:: c

.. _gf_constr:

Constructors
====================

Constructors of gf
---------------------------


+--------------------------------+-------------------------------------------------------------------------------------------------------------------+
| Constructors                   | Comments                                                                                                          |
+================================+===================================================================================================================+
| gf()                           | Empty gf                                                                                                          |
+--------------------------------+-------------------------------------------------------------------------------------------------------------------+
| gf(gf const &)                 | Copy construction                                                                                                 |
+--------------------------------+-------------------------------------------------------------------------------------------------------------------+
| gf(gf &&)                      | Move construction                                                                                                 |
+--------------------------------+-------------------------------------------------------------------------------------------------------------------+
| gf(gf_view & g)                | Make a clone of the view.                                                                                         |
+--------------------------------+-------------------------------------------------------------------------------------------------------------------+
| gf(gf_const_view & g)          | Make a clone of the const view.                                                                                   |
+--------------------------------+-------------------------------------------------------------------------------------------------------------------+
| gf(mesh_t m, target_shape_t s) | Constructs a gf with mesh m and a target shape s. s depends on the specialization: it is the information needed   |
+--------------------------------+-------------------------------------------------------------------------------------------------------------------+
|                                | to construct the gf, aside from the mesh itself: typically the size of the matrix for a matrix_valued gf.         |
+--------------------------------+-------------------------------------------------------------------------------------------------------------------+
|                                | target_shape_t is described in the specialization section. section XXX). The function is initialized to 0         |
+--------------------------------+-------------------------------------------------------------------------------------------------------------------+
| gf(mesh_t m, data_t dat,       | *[Advanced]* Construct a gf from its elements (a mesh, a data array, a singularity, a symmetry, and an evaluator. |
+--------------------------------+-------------------------------------------------------------------------------------------------------------------+
| singularity_view_t const & si, | Normally should be reserved for lib purposes...(remove from the doc ?).                                           |
+--------------------------------+-------------------------------------------------------------------------------------------------------------------+
| symmetry_t const & s,          |                                                                                                                   |
+--------------------------------+-------------------------------------------------------------------------------------------------------------------+
| evaluator_t const & eval)      |                                                                                                                   |
+--------------------------------+-------------------------------------------------------------------------------------------------------------------+

There are more examples for each specializations in the corresponding pages.


.. literalinclude:: /documentation/examples/triqs/gfs/gf_constructors_0.cpp
:language: cpp

.. literalinclude:: /documentation/examples/triqs/gfs/gf_constructors_0.output