tests_nfloat.py 文件源码

def test_nfloat_ops_binary():
    # Signedness (nfloat + nfloat)
    assert (nfloat( exponent=4 ) + nfloat( exponent=4 )).e == 4
    assert (nfloat( exponent=4 ) + nfloat( exponent=8 )).e == 8
    assert (nfloat( exponent=8 ) + nfloat( exponent=4 )).e == 8
    assert (nfloat( exponent=8 ) + nfloat( exponent=8 )).e == 8
    # Size (nfloat + nfloat)
    assert (nfloat( mantissa=4 ) + nfloat( mantissa=4 )).m == 4
    assert (nfloat( mantissa=4 ) + nfloat( mantissa=8 )).m == 8
    assert (nfloat( mantissa=8 ) + nfloat( mantissa=4 )).m == 8
    assert (nfloat( mantissa=8 ) + nfloat( mantissa=8 )).m == 8
    # Signedness (nfloat + float)
    assert (nfloat( exponent=4 ) + 0.0).e == 4
    assert (nfloat( exponent=8 ) + 0.0).e == 8
    # Size (nfloat + float)
    assert (nfloat( mantissa=4 ) + 0.0).m == 4
    assert (nfloat( mantissa=8 ) + 0.0).m == 8
    # Arithmetic
    assert float32(3.0) +  float32(2.0) == float32(5.0)
    assert float32(3.0) -  float32(2.0) == float32(1.0)
    assert float32(3.0) *  float32(2.0) == float32(6.0)
    assert float32(3.0) /  float32(2.0) == float32(1.5)
    assert float32(3.0) // float32(2.0) == float32(1.0)
    assert float32(7.0) %  float32(5.0) == float32(2.0)
    assert float32(3.0) ** float32(4.0) == float32(81.0)