Am 19.11.2014 12:32, schrieb Karoly Balogh (Charlie/SGR): > Hi, > > On Wed, 19 Nov 2014, Jonas Maebe wrote: > >>> Since the RTL's allocator is documented to align to 16 bytes >> >> Where? > > Ok, that's actually a very good question. :) I didn't find it anywhere, > except some earlier ML/forum posts revealed by Google. > > However, in practice it still seems to align to 16 bytes, and I asked > several people (compiler, RTL, Lazarus developers) during the FPC/Lazraus > conference last weekend in the Netherlands and the consensus was, it's > known the heap manager aligns to 16 bytes, it's designed to do that, and > in general it's a feature, which should be documented if it's not. > > But yeah, everyone appended "but better ask Jonas". :)
>From heap.inc: { we need to align the user pointers to 8 byte at least for mmx/sse and doubles on sparc, align to 16 bytes } Cryptic though :) _______________________________________________ fpc-devel maillist - fpc-devel@lists.freepascal.org http://lists.freepascal.org/cgi-bin/mailman/listinfo/fpc-devel