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/*
* Implementation Symphony Tool Box for Scilab
* globals.cpp
* contains definitions of global variables and functions
* By Keyur Joshi and Sai Kiran
*/
#include <symphony.h>
#include <sciprint.h>
sym_environment *global_sym_env=0;
extern "C"{
int process_ret_val(int ret_val){
int status=0;
sciprint("\n");
switch(ret_val){
case TM_NO_PROBLEM:
sciprint("No problem has been loaded.");
break;
case TM_NO_SOLUTION:
sciprint("This problem is infeasible.");
break;
case TM_FINISHED:
sciprint("The solver has finished working.");
break;
case TM_UNFINISHED:
sciprint("The solver has NOT finished working.");
break;
case TM_FEASIBLE_SOLUTION_FOUND:
sciprint("A feasible solution has been found. It may not be optimal.");
break;
case TM_SIGNAL_CAUGHT:
sciprint("TM_SIGNAL_CAUGHT");
break;
case TM_UNBOUNDED:
sciprint("This problem or its solution is unbounded.");
break;
case PREP_OPTIMAL_SOLUTION_FOUND:
sciprint("An optimal solution has been found.");
break;
case PREP_NO_SOLUTION:
sciprint("This problem is infeasible.");
break;
case PREP_ERROR:
sciprint("An error occured during preprocessing.");
status=1;
break;
case ERROR__USER:
sciprint("Error: user error detected in one of "
"sci_user_send_lp_data(), "
"sci_user_send_cg_data(), "
"user_send_cp_data(), "
"user_receive_feasible_solution(), "
"user_display_solution(), "
"user_process_own_messages() functions.");
status=1;
break;
case TM_OPTIMAL_SOLUTION_FOUND:
sciprint("An optimal solution has been found.");
break;
case TM_TIME_LIMIT_EXCEEDED:
sciprint("The solver stopped after the time limit was reached.");
break;
case TM_NODE_LIMIT_EXCEEDED:
sciprint("The solver stopped after the node limit was reached.");
break;
case TM_TARGET_GAP_ACHIEVED:
sciprint("The solver stopped after achieving the target gap.");
break;
case TM_FOUND_FIRST_FEASIBLE:
sciprint("A feasible solution has been found. It may not be optimal.");
break;
case TM_ERROR__NO_BRANCHING_CANDIDATE:
sciprint("Error: user didn’t select branching candidate in user_select_candidates()");
status=1;
break;
case TM_ERROR__ILLEGAL_RETURN_CODE:
sciprint("Error: illegal return code.");
status=1;
break;
case TM_ERROR__NUMERICAL_INSTABILITY:
sciprint("Error: solver stopped due to some numerical difficulties.");
status=1;
break;
case TM_ERROR__COMM_ERROR:
sciprint("Error: solver stopped due to communication error.");
status=1;
break;
case TM_ERROR__USER:
sciprint("Error: user error detected in one of user callbacks called during TM processes.");
break;
default:
sciprint("Error: undefined return value.");
status=1;
break;
}
sciprint("\n");
return status;
}
}
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