[SOLVED] A question about atoi() i C...

trist007 · 02-15-2013, 06:31 PM

I'm trying to understand why I get this error when I compile
functions.c:521: warning: passing argument 2 of 'AddRecord' makes pointer from integer without a cast
arg2 is a char pointer already why is it complaining?

Code:

char *arg1;
	char *arg2;
	char *arg3;
	char *arg4;

	arg1 = strtok(args, " ");
	arg2 = strtok(NULL, " ");
	arg3 = strtok(NULL, " ");
	arg4 = strtok(NULL, " ");

Code:

if (strncmp(arg1, "add", 1) == 0) {
		if (arg4 == NULL)
			AddRecord(conn, NULL, arg2, arg3);
		else
			AddRecord(conn, atoi(arg2), arg3, arg4);  // line 521
		DatabaseWrite(conn, filename);
}

j13ett5 · 02-15-2013, 06:52 PM

It's complaining because atoi converts char-pointer into an integer represention of what it finds at the poited-to location.

Drop the atoi

AddRecord(conn, arg2, arg3, arg4); // line 521

trist007 · 02-15-2013, 10:01 PM

Ah ok yes I see now. Thanks.