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Subject: Is this Xboard code wrong??

Author: Keafiwa

Date: 05:16:03 03/20/04


//This code taken from part of TCSP main.c shows it's xboard procedure
//code seems to be entering an infinite loop somewhere, on my machine(p4
//windows xp) can anyone suggest wht might be wrong and how i can correct it


#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <signal.h>
#include "defs.h"
#include "data.h"
#include "protos.h"
void xboard()
{
	int computer_side;
	char line[256], command[256];
	int m;
	int post = 0;

	signal(SIGINT, SIG_IGN);
	printf("\n");
	init_board();
	gen();
	computer_side = EMPTY;
	for (;;) {
		fflush(stdout);
		if (side == computer_side) {
			think(post);
			if (!pv[0][0].u) {
				computer_side = EMPTY;
				continue;
			}
			printf("move %s\n", move_str(pv[0][0].b));
			makemove(pv[0][0].b);
			ply = 0;
			gen();
			print_result();
			continue;
		}
		if (!fgets(line, 256, stdin))
			return;
		if (line[0] == '\n')
			continue;
		sscanf(line, "%s", command);
		if (!strcmp(command, "xboard"))
			continue;
		if (!strcmp(command, "new")) {
			init_board();
			gen();
			computer_side = DARK;
			continue;
		}
		if (!strcmp(command, "quit"))
			return;
		if (!strcmp(command, "force")) {
			computer_side = EMPTY;
			continue;
		}
		if (!strcmp(command, "white")) {
			side = LIGHT;
			xside = DARK;
			gen();
			computer_side = DARK;
			continue;
		}
		if (!strcmp(command, "black")) {
			side = DARK;
			xside = LIGHT;
			gen();
			computer_side = LIGHT;
			continue;
		}
		if (!strcmp(command, "st")) {
			sscanf(line, "st %d", &max_time);
			max_time *= 1000;
			max_depth = 32;
			continue;
		}
		if (!strcmp(command, "sd")) {
			sscanf(line, "sd %d", &max_depth);
			max_time = 1 << 25;
			continue;
		}
		if (!strcmp(command, "time")) {
			sscanf(line, "time %d", &max_time);
			max_time *= 10;
			max_time /= 30;
			max_depth = 32;
			continue;
		}
		if (!strcmp(command, "otim")) {
			continue;
		}
		if (!strcmp(command, "go")) {
			computer_side = side;
			continue;
		}
		if (!strcmp(command, "hint")) {
			think(0);
			if (!pv[0][0].u)
				continue;
			printf("Hint: %s\n", move_str(pv[0][0].b));
			continue;
		}
		if (!strcmp(command, "undo")) {
			if (!hply)
				continue;
			takeback();
			ply = 0;
			gen();
			continue;
		}
		if (!strcmp(command, "remove")) {
			if (hply < 2)
				continue;
			takeback();
			takeback();
			ply = 0;
			gen();
			continue;
		}
		if (!strcmp(command, "post")) {
			post = 2;
			continue;
		}
		if (!strcmp(command, "nopost")) {
			post = 0;
			continue;
		}
		m = parse_move(line);
		if (m == -1 || !makemove(gen_dat[m].m.b))
			printf("Error (unknown command): %s\n", command);
		else {
			ply = 0;
			gen();
			print_result();
		}
	}
}




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