memoverlap - check whether two memory blocks overlap

       Lars Wirzenius (lars.wirzenius@helsinki.fi)

Publib                                        C Programmer's Manual                             MEMOVERLAP(3pub)

memoverlap  checks  whether  the  memory  blocks  t--(t+ts-1)  and  s--(s+ss-1) overlap.  Neither pointer
       argument may be NULL, but the sizes may be 0.  The memory blocks can be arbitrary, they do not have to be
       part of the same array.  Therefore, this function hides the unportable pointer comparison that one  would
       otherwise rely on.

       memoverlap - check whether two memory blocks overlap

memoverlap returns 0 if the blocks do not overlap, and nonzero if they do.

publib(3)

       #include <publib.h>
       int memoverlap(const void *t, size_t ts, const void *s, size_t ss);