[parallax]

How do I invoke a command similar to "(float)atof(char *str)" or "scanf()"on an NSString or NSMutableString?

I need to extract a float value from a string, so something like:

@"123.23445" should become a float with that value (123.23445).

Thanks.

[Dalgo]

In NSString, use - (double)doubleValue

and what do you mean similar to scanf()? scanf() is used to get input from the command line. Sure you could take a character array from scanf or NSString and convert it to a number, but there's no point in wasting time coding that if you can just use a method in NSString.

[parallax]

Ah. I'll try that.

What I mean by scanf is like extracting a few doubles from a string, or a double, then a character, like "%d %c %d %c" or something like that.

Thanks!

[ali]

Check out the NSScanner class.

It allows you to extract doubles, ints, strings, characters (from a given set) from a string. Basically similar to scanf() but less error prone. 8-)

Ali