Thread: how do i convert a string to an integer??

Code:

int i;
char * string = "1024";
i = atoi(string);
printf("%d", i);

Are you trying to create a hash? I don't have much experience with this, but try playing around with bit ops etc..

here's an example (probably not good, just off the top of my head..)

Code:

int examplehash(char *string)
{
	int i = 0, hash = 0;

	while(string[i])
	{
		hash += string[i];
		hash ^= string[i];
		++i;
	};

	return hash;
};

Give it a try, play around with it. Do a google search.

*blah, fixed code tag + missing increment

Hi wtyyip!

What did you expect ?

Code:

DESCRIPTION
       The atoi() function converts the initial  portion  of  the
       string  pointed  to  by nptr to int.  The behaviour is the
       same as

              strtol(nptr, (char **)NULL, 10);

       except that atoi() does not detect errors.

... so you should use strtol.

In fact... you C library is friendly enough to give you 0, it could return you any value it likes (at least with the ISO90 standard).

alex

int x = 'a';

Pretty simple stuff.

printf( "a is %d", 'a' );

Quzah.