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Re: alignement or compiler bug?
Valeriy E. Ushakov <uwe%stderr.spb.ru@localhost> wrote:
> Emmanuel Dreyfus <manu%netbsd.org@localhost> wrote:
>> This code wil rarely crash in memcpy(). gdb shows an unexpectely huge
>> data_len, bigger than max_write. My explanation this that memcpy overwrite
>> data_len becaue (fwi +1) did not hold the expected value.
written = 0;
(void)memcpy((fwi + 1), buf + written, data_len);
written = fwo->size;
buf += written;
so, unless I miss something, on the second iteration the second
(source) arg to memcpy is going to be wrong, as you add written twice.
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