I have turned on -Wcast-align in a big C++ project for ARM PXA270 architecture and am receiving many warnings of the form: warning: cast from `BYTE*' to `short int*' increases required alignment of target type This sounds like there will be a performance penalty to generate the correct alignment for this. Is that correct? Thanks for your attention. John Boncek -- View this message in context: http://www.nabble.com/-Wcast-align-and-performance-tp22501453p22501453.html Sent from the gcc - Help mailing list archive at Nabble.com.