Kp 0fd80b12df Prevent out-of-bounds read when sorting segment sides ... GCC 6 `std::sort` sometimes compares an element to itself. For a normal implementation of comparison, this is useless, but not harmful. The render comparison predicate relies on accessing A[B[a][b]] when comparing `a` and `b`. Array `B` has `-1` in positions where `a == b`, which causes an access to `A[-1]`, which is undefined behavior. This crashes when using _GLIBCXX_DEBUG: Error: attempt to subscript container with out-of-bounds index -1, but container only holds 8 elements. Objects involved in the operation: sequence "this" @ 0x0x335adf0 { type = std::__debug::array<int, 8ul>::_Array_check_subscript<8ul>; } Since this is undefined behavior, non-debug builds might also misbehave. Current data layouts make it likely that the failure would not have externally observable consequences. Prevent the invalid access by short-circuiting the result if `a == b`.		2017-02-11 21:42:43 +00:00
..
2d	Pass canvas to gr_set_curfont	2017-02-11 21:42:38 +00:00
3d	Pass canvas to g3_check_and_draw_poly	2017-02-11 21:42:42 +00:00
arch	Pass canvas to LINE_SPACING	2017-02-11 21:42:42 +00:00
editor	Pass canvas to g3_check_and_draw_poly	2017-02-11 21:42:42 +00:00
main	Prevent out-of-bounds read when sorting segment sides	2017-02-11 21:42:43 +00:00
misc	Fix failure to unmap custom hogs	2016-12-17 18:39:18 +00:00