Token :: Token(char input, Category category, double actual_value, int precedence)
{
set_input(input);
set_category(category);
set_actual_value(actual_value);
set_precedence(precedence);
}
int truth_table(char ipstr[], int fnvalues[], int *no_of_variables){
int i, j, output, len;
remove_spaces(ipstr);
if(check_for_valid_characters(ipstr)){
printf("ERROR! Use only valid characters - ~&|() a-z A-Z\n");
return 1;
}
set_precedence(precedence, ipstr);
get_variables(listvar, &numvar, precedence);
if(conv_to_postfix(ipstr, opstr, precedence) == 1){
printf("\nError in input\n");
return 1;
}
len = strlen(ipstr);
/* Truth-table Printing */
printf("\n");
for(i=0; i<numvar; i++){
printf("%c ", listvar[i]);
}
printf("%s ", ipstr);
for(i=0; i<(1<<numvar); i++){
/* For each permutation of bits */
printf("\n");
compute_val_var_from_perm(i, valvar, numvar);
for(j=0; j<numvar; j++)
printf("%d ", valvar[j]);
output = eval_postfix(opstr, valvar, numvar, listvar);
if(output == 1){
printf("Error : eval - not enuff operands\n");
return 1;
}
fnvalues[i] = output - '0';
printf("%*c ", len/2 + 1, output);
}
*no_of_variables = numvar;
printf("\n");
return 0;
}
