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Message: [QUOTE="grahamo, post: 1523141"] Doh, In my last mail I meant the function atoi instead of sprintf... and I also meant to use an int instead of an unsigned int......... this is the approach I mean , ignore the other email...sorry :( unsigned char* data = foo(); int result = atoi((char*)data) Is that correct? Assuming new c++ style casts are used, is the above right or completely erroneous. Cheers Graham From: [email]graham_walsh50@hotmail.com[/email] (grahamo) Newsgroups: comp.lang.c++ Subject: cast safe NNTP-Posting-Host: 194.206.100.24 Message-ID: <79528aa8.0412140618.fe964cc@posting.google.com> Hi, i know I should use the new style casts and I intend to however I would like to know how I go about this; I have an unsigned char* that a 3rd party API returned to me. The API reads text from a file and gives me that test as an unsigned char*. For the sake of this example the text string is "100" unsigned char* data = foo(); I need to get this into an unsigned int, which is what it ultimately should be however I'm not sure of the best approach. I can cast it to a char* and then use sprintf(result, "%d", arg) but I'm not sure if thats the best approach. What's the *correct* way to achieve it... in terms of code correctness and "correct approach". Thanks much for any info (as usual:) GrahamO [/QUOTE]