ruby_xmalloc2    8386 gc.c           	ptr = ruby_xmalloc2(2, sizeof(VALUE));
ruby_xmalloc2     178 include/ruby/defines.h #define xmalloc2 ruby_xmalloc2
ruby_xmalloc2    1579 include/ruby/ruby.h #define RB_ALLOC_N(type,n) ((type*)ruby_xmalloc2((n),sizeof(type)))