backend_tests.py 文件源码

def test_new_array_args(self):
        ffi = FFI(backend=self.Backend())
        # this tries to be closer to C: where we say "int x[5] = {10, 20, ..}"
        # then here we must enclose the items in a list
        p = ffi.new("int[5]", [10, 20, 30, 40, 50])
        assert p[0] == 10
        assert p[1] == 20
        assert p[2] == 30
        assert p[3] == 40
        assert p[4] == 50
        p = ffi.new("int[4]", [25])
        assert p[0] == 25
        assert p[1] == 0     # follow C convention rather than LuaJIT's
        assert p[2] == 0
        assert p[3] == 0
        p = ffi.new("int[4]", [ffi.cast("int", -5)])
        assert p[0] == -5
        assert repr(p) == "<cdata 'int[4]' owning %d bytes>" % (4*SIZE_OF_INT)