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The syscalls like sbrk() and mmap() return pointers, to test them, more pointer compare test macros are required, add them: - EXPECT_PTREQ() expects two equal pointers. - EXPECT_PTRNE() expects two non-equal pointers. - EXPECT_PTRER() expects failure with a specified errno. - EXPECT_PTRER2() expects failure with one of two specified errnos. Signed-off-by: Zhangjin Wu <falcon@tinylab.org> Signed-off-by: Willy Tarreau <w@1wt.eu>