can't read from file


i have code:
[src]
nsarray *paths = nssearchpathfordirectoriesindomains(nsdocumentdirectory, nsuserdomainmask, yes);
nsstring *documentsdirectory = [paths objectatindex:0];
nsstring *path = [documentsdirectory stringbyappendingpathcomponent:mad:"example.txt"];

nsstring revals;
nsinteger retval;
retval = [@"2" writetofile: path atomically:yes];
[/src]

it's write file value =2 ; can't find anywhere - how can read value revals?

thanks!
 

someboby know?
 


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