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2022-05-08Import reallocarray() from libX11 (originally from OpenBSD)Alan Coopersmith
Wrapper for realloc() that checks for overflow when multiplying arguments together, so we don't have to add overflow checks to every single call. For documentation on usage, see: http://www.openbsd.org/cgi-bin/man.cgi/OpenBSD-current/man3/calloc.3 Signed-off-by: Alan Coopersmith <alan.coopersmith@oracle.com>