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Up-> cppad_py library py_lib py_fun py_abort_recording fun_abort_xam.py

library-> py_lib cpp_lib

py_lib-> py_fun py_sparse py_utility more_py

py_fun-> py_independent py_abort_recording py_fun_ctor py_fun_property py_fun_new_dynamic py_fun_jacobian py_fun_hessian py_fun_forward py_fun_reverse py_fun_optimize

py_abort_recording-> fun_abort_xam.py

fun_abort_xam.py

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def fun_abort_xam() :
     #
     import numpy
     import numpy
     import cppad_py
     #
     # initialize return variable
     ok = True
     # ---------------------------------------------------------------------
     n_ind = 2
     #
     # create ax
     x = numpy.empty(n_ind, dtype=float)
     for i in range( n_ind  ) :
          x[i] = i + 1.0
     #
     ax = cppad_py.independent(x)
     #
     # preform some a_double operations
     ax0 = ax[0]
     ax1 = ax[1]
     ay = ax0 + ax1
     #
     # check that ay is a variable; its value depends on the value of ax
     ok = ok and ay.variable()
     #
     # abort this recording
     cppad_py.abort_recording()
     #
     # check that ay is now a parameter, no longer a variable.
     ok = ok and ay.parameter()
     #
     # since it is a parameter, we can retrieve its value
     y = ay.value()
     #
     # its value should be x0 + x1
     ok = ok and y  == x[0] + x[1]
     #
     # an abort when not recording has no effect
     cppad_py.abort_recording()
     #
     return( ok )
#