// p - pointer to argument
// idx - index in argument
// default value
static int
get_number_arg(char* p,int def)
{
if (isdigit(*p))
{
def = atoi(p);
}
return def;
}
int
main(int argc, char** argv)
{
int argv_idx = 1; /* active option letter is argv[0][argv_idx] */
int players=1;
int number_of_deals=1;
bool want_argument=false;
while(argc>0)
{
if(argv[0][0]=='-')
{
char c=argv[0][argv_idx++];
switch(c)
{
case 0:
//do nothing
argv_idx=-1;
break;
case '-': // "--" don't take any more options
if(strcmp(argv[0]+argv_idx,"version")==0){
print_version();
}
else if(strcmp(argv[0]+argv_idx,"help")==0){
print_help();
}
argv_idx=-1;
break;
case 'h':
print_help();
break;
case 'v':
print_version();
break;
case 'p': // 1,2,3,4 players, default 1
if (argv[0][argv_idx]){ // "-p{tag}"
players=get_number_arg(argv[0]+argv_idx,1);
argv_idx=-1;
}
else{ // "-p {tag}"
want_argument=true;
}
break;
case 'n': //number of deals, default 1
if (argv[0][argv_idx]){ // "-n{tag}"
number_of_deals=get_number_arg(argv[0]+argv_idx,1);
if(number_of_deals<=0) number_of_deals=1;
argv_idx=-1;
}
else{ // "-n {tag}"
want_argument=true;
}
break;
default:
break;
}
//handle options with argument
if(want_argument)
{
if (argv[0][argv_idx]){
cerr
}
--argc;
if (argc<1){
cerr
}
++argv;
argv_idx = -1;
switch(c)
{
case 'p':
players=get_number_arg(argv[0],1);
argv_idx=-1;
break;
case 'n':
number_of_deals=get_number_arg(argv[0],1);
if(number_of_deals<=0) number_of_deals=1;
argv_idx=-1;
break;
default:
; //impossible
}
}
}
else{
argv_idx=-1;//do nothing
}
// If there are no more letters after the current "-", go to next
// argument. argv_idx is set to -1 when the current argument is to be
// skipped.
if (argv_idx <= 0 argv[0][argv_idx] == 0)
{
--argc;
++argv;
argv_idx = 1;
}
}
//init
srand(time(0));
//original card
//value: spade, 0-12; heart, 13-25; diamond 26-38; cotton 39-51;
//array index: west, 0-12; north, 13-25; east 26-38; south 39-51;
const int dim=52;
int cards[dim];