Parsing a String to grab numbers

[sake]

Hi,
Once again, Google has failed me.
I need to know how to parse a string that contains two integer numbers separated by a comma (ex: 6,3). Even though the two numbers are supposed to be single digits, I have to be prepared to handle a number of any size. So pretty much, I have to input a string formatted in x,y notation, and then grab both numbers (x and y) and put them in two integer variables (int x, and int y). The only way I've been able to think of is to loop through the string, test each character against a switch statement, and if it's a number, add it to a C string. When a comma is detected, convert the C string to an integer and dump it to int x, then do the same thing until the end of the string is found. This way seems so laborious and messy, however. Is there any "cleaner" way to do it?
Thanks,
Austen

[svlsr2000]

Hi,
Once again, Google has failed me.
I need to know how to parse a string that contains two integer numbers separated by a comma (ex: 6,3). Even though the two numbers are supposed to be single digits, I have to be prepared to handle a number of any size. So pretty much, I have to input a string formatted in x,y notation, and then grab both numbers (x and y) and put them in two integer variables (int x, and int y). The only way I've been able to think of is to loop through the string, test each character against a switch statement, and if it's a number, add it to a C string. When a comma is detected, convert the C string to an integer and dump it to int x, then do the same thing until the end of the string is found. This way seems so laborious and messy, however. Is there any "cleaner" way to do it?
Thanks,
Austen

you can use atoi, after call to atoi move your pointer to begining of next integer.

[kartrkm]

hi,

hey if u wanna parse a string and take the values from it... use the STRTOK frunction...
for instance

char str[]="65,32";

if u wanna parse this string then,
char *ptr;
int x,y;
ptr=strtok(str,",");
x=atoi(ptr);
ptr=strtok(NULL,",");
y=atoi(ptr);


this is one way u can parse a string rather than goin char by char which is more tedious....

hope it solves ur prob....

Kars

[Banfa]

use strtol, this converts a character array (string) to an integer and returns a pointer to where the converstion failed/stopped.

So you should be able to

char input = "243,574";
char *pEnd;
long x, y;
 
x = strtol ( input, &pEnd, 10 );
if (*pEnd == ',')
{
    pEnd++;
    y = strtol ( pEnd, &pEnd, 10 );
 
    if (*pEnd != '\0')
    {
        // Conversion Error
    }
}
else
{
    // Conversion Error
}
 

[sake]

Thank you very much :-)
-Austen