test_verify1.py 文件源码

def test_string_to_voidp_arg():
    ffi = FFI()
    ffi.cdef("int myfunc(void *);")
    lib = ffi.verify("int myfunc(void *p) { return ((signed char *)p)[0]; }")
    res = lib.myfunc(b"hi!")
    assert res == ord(b"h")
    p = ffi.new("char[]", b"gah")
    res = lib.myfunc(p)
    assert res == ord(b"g")
    res = lib.myfunc(ffi.cast("void *", p))
    assert res == ord(b"g")
    res = lib.myfunc(ffi.cast("int *", p))
    assert res == ord(b"g")