test_backends.py 文件源码

def test_set_floatx(self):
        """
        Make sure that changes to the global floatx are effectively
        taken into account by the backend.
        """
        # Keep track of the old value
        old_floatx = floatx()

        set_floatx('float16')
        var = variable([10])
        check_dtype(var, 'float16')

        set_floatx('float64')
        var = variable([10])
        check_dtype(var, 'float64')

        # Restore old value
        set_floatx(old_floatx)