Mateusz Łoskot cc6ba0ae72 Disable unaligned pointer access ...

Rename GIL_NONWORD_POINTER_ALIGNMENT_SUPPORTED
    to BOOST_GIL_CONFIG_HAS_UNALIGNED_ACCESS.
Undefine BOOST_GIL_CONFIG_HAS_UNALIGNED_ACCESS by default and document it.
If defined, issue warning or error, depending on target platform.

This changes how packed_channel_reference_base-based channels perform
access - aligned memory access by default.

This also fixes undefined behavior detected by UBSan in some test cases.

2018-06-27 00:02:27 -04:00

..

boost

Disable unaligned pointer access

2018-06-27 00:02:27 -04:00