Python encode_int32_into_longlong_nan Exemples

Exemple #1

def fn_encode_nan(f1, i2):
    from rpython.rlib.longlong2float import can_encode_float, can_encode_int32
    from rpython.rlib.longlong2float import encode_int32_into_longlong_nan
    from rpython.rlib.longlong2float import decode_int32_from_longlong_nan
    from rpython.rlib.longlong2float import is_int32_from_longlong_nan
    assert can_encode_float(f1)
    assert can_encode_int32(i2)
    l1 = float2longlong(f1)
    l2 = encode_int32_into_longlong_nan(i2)
    assert not is_int32_from_longlong_nan(l1)
    assert is_int32_from_longlong_nan(l2)
    f1b = longlong2float(l1)
    assert f1b == f1 or (math.isnan(f1b) and math.isnan(f1))
    assert decode_int32_from_longlong_nan(l2) == i2
    return 42

Exemple #2

Fichier : test_longlong2float.py Projet : abhinavthomas/pypy

def fn_encode_nan(f1, i2):
    from rpython.rlib.longlong2float import can_encode_float, can_encode_int32
    from rpython.rlib.longlong2float import encode_int32_into_longlong_nan
    from rpython.rlib.longlong2float import decode_int32_from_longlong_nan
    from rpython.rlib.longlong2float import is_int32_from_longlong_nan
    from rpython.rlib.rfloat import isnan
    assert can_encode_float(f1)
    assert can_encode_int32(i2)
    l1 = float2longlong(f1)
    l2 = encode_int32_into_longlong_nan(i2)
    assert not is_int32_from_longlong_nan(l1)
    assert is_int32_from_longlong_nan(l2)
    f1b = longlong2float(l1)
    assert f1b == f1 or (isnan(f1b) and isnan(f1))
    assert decode_int32_from_longlong_nan(l2) == i2
    return 42

Exemple #3

Fichier : vector.py Projet : pycket/pycket

 def unwrap(self, w_val):
     if isinstance(w_val, W_Fixnum):
         bits = encode_int32_into_longlong_nan(w_val.value)
         return longlong2float(bits)
     assert isinstance(w_val, W_Flonum)
     return w_val.value

Exemple #4

Fichier : vector.py Projet : shiplift/PycketOnAShip

 def unwrap(self, w_val):
     if isinstance(w_val, W_Fixnum):
         bits = encode_int32_into_longlong_nan(w_val.value)
         return longlong2float(bits)
     assert isinstance(w_val, W_Flonum)
     return w_val.value