lines 971-1016 of file: lib/cplusplus/fun.cpp

{xrst_begin cpp_fun_json}


Json Representation of AD Computational Graph
#############################################

Syntax
******

| *json* = *f*\ ``.to_json`` ()
| *f*\ ``.from_json`` ()

f
*
This is a :ref:`d_fun<cpp_fun_ctor@Syntax@d_fun>` object.

json
****
is a Json representation of the computation graph corresponding to
*f* ; see the CppAD documentation for
`json_ad_graph <https://coin-or.github.io/CppAD/doc/json_ad_graph.htm>`_.

to_json
*******
In this case, the function object *f* is ``const`` and
the return value *json* has prototype

| |tab| ``std::string`` *json*

from_json
*********
In this case, *json* has prototype

| |tab| ``const std::string&`` *json*

and the function *f* so it corresponds to *json* .

{xrst_toc_hidden
   example/cplusplus/fun_json_xam.cpp
}
Examples
********
:ref:`fun_to_json_xam.cpp-name`,
:ref:`fun_from_json_xam.cpp-name`.

{xrst_end cpp_fun_json}