Calling PHCpack from C as a state machine in PHCv2.4.90

This directory was created in release 2.3 as subdirectory to CtoPHC.
The idea for using PHCpack as a state machine originated from the need
to create a parallel path tracker with MPI, first used in release 2.2,
to be used in the implementation of a parallel Pieri homotopy.
New in release 2.3 are additions to this state machine to implement
a parallel monodromy breakup algorithm.

The default extension is .ads (specification of Ada package).
In mixing C with Ada we give the extension, because sometimes we give
the same name (but different suffix) to related C and Ada routines.

In version 2.4.79, many new interface packages were added to organize
and document the definitions of the interface functions better.
In version 2.4.85, systems and solution containers were moved
to the new folder ../Structures.

------------------------------------------------------------------------------
file name                        : short description
------------------------------------------------------------------------------
file_management_interface        : interface to file management methods
standard_polysys_interface       : interface to double precision polynomials
dobldobl_polysys_interface       : interface to double double polynomials
quaddobl_polysys_interface       : interface to quad double polynomials
multprec_polysys_interface       : interface to multiprecision polynomials
multprec_laursys_interface       : interface to multiprecision Laurent systems
use_syscon                       : Ada gateway to the systems container
tableau_form_interface           : tableau form of systems
use_tabform                      : pass tableau forms of systems
ts_use_syscon.c                  : C routine calls the Ada gateway use_syscon
standard_syspool_interface       : interface to the pool of double systems
dobldobl_syspool_interface       : interface to the pool of dobldobl systems
quaddobl_syspool_interface       : interface to the pool of quaddobl systems
use_syspool                      : Ada gateway to the systems pool
ts_use_syspool.c                 : C routine calls the Ada gateway
------------------------------------------------------------------------------
standard_solutions_container     : management of Ada solution lists
standard_solutions_interface     : interface to double precision solutions
dobldobl_solutions_container     : solutions with double doubles
dobldobl_solutions_interface     : interface to double double solutions
quaddobl_solutions_container     : solutions with quad doubles
quaddobl_solutions_interface     : interface to quad double solutions
multprec_solutions_container     : multiprecision solutions
multprec_solutions_interface     : interface to multiprecision solutions
assignments_of_solutions         : converts between PHCpack and (b,c) format
ts_solcon                        : tests the solutions container
use_solcon                       : Ada gateway to the solutions container
ts_use_solcon.c                  : C routine calls the Ada gateway use_solcon
solutions_pool                   : pool of solution lists
ts_solpool                       : test on the solutions pool
standard_solspool_interface      : interface to functions on the pool of sols
use_solpool                      : Ada gateway to the solutions pool
ts_use_solpool.c                 : C routine calls the Ada gateway use_solpool
newton_interface                 : interface to Newton's method
------------------------------------------------------------------------------
phcpack_operations               : PHCpack as a state machine
phcpack_operations_io            : input/output of main data of PHCpack
c_to_phcpack                     : Ada routine as gateway to the machine
ts_c2str.c                       : test on having phc write C strings
------------------------------------------------------------------------------
scaling_interface                : interface to equation & coefficient scaling
use_scaling                      : access to scaling systems and solutions
reduction_interface              : interface to degree reduction methods
use_reduction                    : reduction of system to lower total degree
linear_products_interface        : linear product bounds and start systems
use_roco                         : job handlers for linear products
------------------------------------------------------------------------------
continuation_parameters_interface : tune continuation parameters
path_trackers_interface           : interface to path trackers
cascade_homotopy_interface        : interface to cascade homotopies
diagonal_homotopy_interface       : interface to diagonal homotopy
use_track                         : access to jumpstarting path trackers
------------------------------------------------------------------------------
pieri_homotopy                   : Pieri homotopies as a state machine
ts_pirhom                        : interactive test on pieri_homotopy
pieri_interface                  : interface to Pieri homotopy functions
use_c2pieri                      : Ada routine as gateway to Pieri machine
ts_use_c2pieri                   : C test on the interactive operations
schubert_interface               : interface to LR homotopies
use_c2lrhom                      : calls Littlewood-Richardson homotopies
------------------------------------------------------------------------------
standard_sampling_operations     : provides access to the sampling machine
dobldobl_sampling_operations     : supports monodromy with double doubles
quaddobl_sampling_operations     : supports monodromy with quad doubles
standard_monodromy_permutations  : computes permutations by monodromy
dobldobl_monodromy_permutations  : permutations on double double data
quaddobl_monodromy_permutations  : permutations on quad double data
witness_interface                : interface to witness sets
monodromy_interface              : interface to monodromy loops
use_c2fac                        : Ada gateway to factorization in PHCpack
ts_use_c2fac                     : C testing operations in use_c2fac
member_interface                 : interface functions for membership test
use_c2mbt                        : homotopy membership test jobs for in C
------------------------------------------------------------------------------
cells_container                  : manages mixed-cell configurations
integer_cells_container          : integer lifting valued cells container
cells_interface                  : interface to the cells containers
ts_celcon                        : tests the cells container
use_celcon                       : Ada gateway to the cells container
ts_use_celcon.c                  : C routine to test the cells container
------------------------------------------------------------------------------
monomial_maps_container          : monomial maps as solution to binomials
monomial_maps_interface          : interface function to monomial maps
use_mapcon                       : Ada gateway to monomial maps container
------------------------------------------------------------------------------
univariate_solvers_interface     : interface functions to the root finders
unisolve                         : roots of univariate polynomials
ts_unisolve                      : test on unisolve
------------------------------------------------------------------------------
multprec_giftwrap_container      : hold results of giftwrapping method
giftwrap_interface               : interface to giftwrapping functions
use_giftwrap                     : giftwrapping for convex hulls
ts_use_giftwrap                  : test on use_giftwrap
ts_giftwcon                      : test on giftwrapping container
-----------------------------------------------------------------------------
numerical_tropisms_container     : manages numerically computed tropisms
numerical_tropisms_interface     : to define the C interface to the tropisms
use_numbtrop                     : interface to the tropisms container
------------------------------------------------------------------------------
parameter_homotopy_state         : definition of parameter indices
sweep_interface                  : interface to the sweep operations
use_sweep                        : C interface for sweep homotopy
ts_use_sweep                     : test on use_sweep
------------------------------------------------------------------------------
step_trackers_interface          : interface to step-by-step trackers
use_nxtsol                       : handles jobs to step-by-step trackers
crude_path_trackers              : path trackers without postprocessing
ts_runtrack                      : calls the crude path trackers
------------------------------------------------------------------------------
power_series_interface           : interface to Newton's method on series
use_series                       : power series Newton method
pade_continuation_interface      : interface to Pade continuation
use_padcon                       : handles Pade continuation
------------------------------------------------------------------------------
deflation_interface              : interface to deflation and multiplicities
use_multip                       : compute multiplicity structure
------------------------------------------------------------------------------
ts_c2phc.c                       : C routine calls the Ada gateway to PHCpack
job_containers                   : jobs to move data from/into containers
job_handlers                     : functions to handle jobs in use_c2phc4c
symbol_table_interface           : interface to manipulating symbol table
use_c2phc4c                      : exports PHCpack functionality to C
use_c2phc                        : includes use_c2phc4c and DEMiCs interface
ts_use_c2phc.c                   : C test on the interactive operations
-----------------------------------------------------------------------------
irreducible_components_interface : numerical irreducible decomposition
use_witsols                      : gateway to blackbox solver
-----------------------------------------------------------------------------
