On Fri, May 19, 2006 at 03:54:26PM +0100, Matt Davey wrote: > On Fri, 2006-05-19 at 10:20 -0400, Jakub Jelinek wrote: > > On Fri, May 19, 2006 at 04:16:40PM +0200, BankHacker wrote: > > > Jakub, I have tried to do what you propose but the following code is > > > throwing an error in execution time: > [...] > > > memset(randomdataState, 0, sizeof(*randomdataState)); > > > > And you dereference the uninitialized pointer here ^^^. > > Umm, just to be pedantic, sizeof will happily return > the number of bytes required to store 'struct random_data'. It doesn't > need to dereference anything. eg. "sizeof(struct random_data)" The problem is already in that memset, not on the third memset argument, but the first. The dereference is done in memset, not in the caller. Jakub