Thread: syntax error at end of input

Can someone please tell we where the error in this code is i keep getting an error on the last line saying "syntax error at end of input" need help quick please.

Code:

int main()
{
	// Welcome message
	printf("Welcome to RoboSimoClient\n\n");

	// Ask user for server IP address, then connect to it
	int counter;
	int a, b, c, d, port;
	printf("Please enter server IP address: ");
	scanf("%d.%d.%d.%d", &a, &b, &c, &d);
	printf("Please enter port number: ");
	scanf("%d", &port);	
	connect_to_server(a, b, c, d, port);
	// circle the arena
	while(1)
	{
		set_motor_speeds(100,100);
		counter = 1;
		while(read_analog_channel(0) < 120 && read_analog_channel(1) < 120);
		{
			set_motor_directions(1, 1);
		}
		set_motor_directions(0, 0);
		
		if(read_analog_channel(0) > 120 && read_analog_channel(1) < 120);
		{
			while(counter > 0);
			{
				if(read_analog_channel(0) > 120 && read_analog_channel(1) < 120)
				{
					set_motor_directions(1, 0);
				}
				else
				{
					set_motor_directions(1, 1);	
				}
				counter = counter + 1;
		}
		
		if(read_analog_channel(0) < 120 && read_analog_channel(1) > 120);
		{
			while(counter > 0);
			{
				if(read_analog_channel(0) < 120 && read_analog_channel(1) > 120)
				{
					set_motor_directions(0, 1);
				}
				else
				{
					set_motor_directions(0, 0);
				}
				counter = counter + 1;
		}
	}
	return 1;
}

Aside from missing header stdio.h and no function defs for read_analog_channel(), etc, the biggest problem I see is the while() statement and the first if() are missing their closing braces. As such, the compiler goes off the end of the file looking for the missing braces.

HTH

Jeff

Originally Posted by jeffcobb

Aside from missing header stdio.h and no function defs for read_analog_channel(), etc, the biggest problem I see is the while() statement and the first if() are missing their closing braces. As such, the compiler goes off the end of the file looking for the missing braces.

HTH

Jeff

your a hero thank you so much

Some problems were mentioned above, which may/may noe be duplicated here.

Code:

int main() // put "main(void)" instead
{
    // Welcome message
    printf("Welcome to RoboSimoClient\n\n");

    // Ask user for server IP address, then connect to it
    int counter;
    int a, b, c, d, port;
    printf("Please enter server IP address: ");
    scanf("%d.%d.%d.%d", &a, &b, &c, &d);
    printf("Please enter port number: ");
    scanf("%d", &port);    
    connect_to_server(a, b, c, d, port); //function doesnt exist (if it does, you should have included it in your post!)
    // circle the arena
    while(1)
    {
        set_motor_speeds(100,100); // function doesnt exist
        counter = 1;
        while(read_analog_channel(0) < 120 && read_analog_channel(1) < 120); // you probably dont want this trailing semicolon; also the function your calling doesnt exist
        {
            set_motor_directions(1, 1);  // function doesnt exist
         }
        set_motor_directions(0, 0);
        
        if(read_analog_channel(0) > 120 && read_analog_channel(1) < 120); // trailing semi colon probably not wanted
        {
            while(counter > 0); // semicolon
            {
                if(read_analog_channel(0) > 120 && read_analog_channel(1) < 120)
                {
                    set_motor_directions(1, 0);
                }
                else
                {
                    set_motor_directions(1, 1);    
                }
                counter = counter + 1;
           // missing close bracket
        }
        
        if(read_analog_channel(0) < 120 && read_analog_channel(1) > 120); //semi colon
        {
            while(counter > 0); // what the hell
            {
                if(read_analog_channel(0) < 120 && read_analog_channel(1) > 120)
                {
                    set_motor_directions(0, 1);
                }
                else
                {
                    set_motor_directions(0, 0);
                }
                counter = counter + 1;
            // missing close bracket for while loop 
        }
    }
    return 1;
}