[doro]

Hello I'm totally beginner in programming for mac. I was looking for some answers in internet but none helped me to solve my problem, so I'm writing desperately for help

I have following problem: in loop I need to ad some characters to string.

My question is how to do that? Because by doing so:

Code:
NSString *hlp = [[NSString alloc] initWithFormat: $"some string"];

for (int i =0; i< n; i++) {

NSString *sufix = [[NSString alloc] initWithFormat: @"sufix no: %d,", i];

NSString hlp1 = [hlp stringByAppendingString: sufix];

[hlp release];

hlp = hlp1;
} 

textField.text = hlp;

i got message that "Program recieved signal : EXC_BAD_ACCESS".

Any help would be appreciated.
Doro

[Chuckit]

initWithFormat: returns a string you own. stringByAppendingString: returns a string you do not own. Releasing one is necessary; releasing the other one is wrong. So when you do hlp=hlp1, the next time through the loop it will incorrectly release the string. See the Memory Management Programming Guide for everything you need to know on the topic — it's really a must-read if you want to use Cocoa.