Undefined behaviour in xeve_mc.c

[dariusz-f]

When building a project using the clang compiler, the following warnings appear: This may provide to undefined behavior under different compilers.

/xeve/src_base/xeve_mc.c:324:37: warning: shifting a negative signed value is undefined [-Wshift-negative-value]
    min_clip[MV_X] = (-MAX_CU_SIZE) << 2;
                     ~~~~~~~~~~~~~~ ^
/xeve/src_base/xeve_mc.c:325:37: warning: shifting a negative signed value is undefined [-Wshift-negative-value]
    min_clip[MV_Y] = (-MAX_CU_SIZE) << 2;
                     ~~~~~~~~~~~~~~ ^
src_main/CMakeFiles/xeve_dynamic.dir/__/src_base/xeve_mc.c.o
/xeve/src_base/xeve_mc.c:324:37: warning: shifting a negative signed value is undefined [-Wshift-negative-value]
    min_clip[MV_X] = (-MAX_CU_SIZE) << 2;
                     ~~~~~~~~~~~~~~ ^
/xeve/src_base/xeve_mc.c:325:37: warning: shifting a negative signed value is undefined [-Wshift-negative-value]
    min_clip[MV_Y] = (-MAX_CU_SIZE) << 2;
                     ~~~~~~~~~~~~~~ ^

[kpchoi]

@dariusz-f I guess that the above errors seem to be bug. It should be " -(MAX_CU_SIZE << 2)". Could you kindly push PR simply?

[dariusz-f]

Fixed in #139

[dariusz-f]

Fixed also in xevd https://github.com/mpeg5/xevd/pull/74