On Feb 5, 2009, at 4:42 PM, Steve Sisak wrote:
NSString * newString = [inputString
stringByReplacingCharactersInRange:range withString:@""];
[inputString release]; // release old inputString
inputString = [newString retain]; // retain new inputString
This sequence is not safe. As an optimization there is nothing
preventing "inputString" from returning self if "range" is of zero
length. If that ever happened, you could end up deallocating the
string before the following retain occurs. As has been suggested,
using a single mutable string is probably the best way to go.
~Martin
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