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Style/consistency/nano-optimization nit: replace occurrences of 

(high_bits << PyLong_SHIFT) + low_bits with
  (high_bits << PyLong_SHIFT) | low_bits
in Objects/longobject.c.  Motivation:
 - shouldn't unnecessarily mix bit ops with arithmetic ops (style)
 - this pattern should be spelt the same way thoughout (consistency)
 - it's very very very slightly faster: no need to worry about
   carries to the high digit (nano-optimization).
This commit is contained in:
Mark Dickinson 2009-09-28 16:52:40 +00:00
parent b331802f97
commit 71adc9328d
1 changed files with 6 additions and 6 deletions
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12
Objects/longobject.c
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@ -251,7 +251,7 @@ PyLong_AsLong(PyObject *vv)
}
while (--i >= 0) {
prev = x;
x = (x << PyLong_SHIFT) + v->ob_digit[i];
x = (x << PyLong_SHIFT) | v->ob_digit[i];
if ((x >> PyLong_SHIFT) != prev)
goto overflow;
}
@ -296,7 +296,7 @@ PyLong_AsSsize_t(PyObject *vv) {
}
while (--i >= 0) {
prev = x;
x = (x << PyLong_SHIFT) + v->ob_digit[i];
x = (x << PyLong_SHIFT) | v->ob_digit[i];
if ((x >> PyLong_SHIFT) != prev)
goto overflow;
}
@ -350,7 +350,7 @@ PyLong_AsUnsignedLong(PyObject *vv)
}
while (--i >= 0) {
prev = x;
x = (x << PyLong_SHIFT) + v->ob_digit[i];
x = (x << PyLong_SHIFT) | v->ob_digit[i];
if ((x >> PyLong_SHIFT) != prev) {
PyErr_SetString(PyExc_OverflowError,
"long int too large to convert");
@ -386,7 +386,7 @@ PyLong_AsUnsignedLongMask(PyObject *vv)
i = -i;
}
while (--i >= 0) {
x = (x << PyLong_SHIFT) + v->ob_digit[i];
x = (x << PyLong_SHIFT) | v->ob_digit[i];
}
return x * sign;
}
@ -1170,7 +1170,7 @@ PyLong_AsUnsignedLongLongMask(PyObject *vv)
i = -i;
}
while (--i >= 0) {
x = (x << PyLong_SHIFT) + v->ob_digit[i];
x = (x << PyLong_SHIFT) | v->ob_digit[i];
}
return x * sign;
}
@ -1336,7 +1336,7 @@ inplace_divrem1(digit *pout, digit *pin, Py_ssize_t size, digit n)
pout += size;
while (--size >= 0) {
digit hi;
rem = (rem << PyLong_SHIFT) + *--pin;
rem = (rem << PyLong_SHIFT) | *--pin;
*--pout = hi = (digit)(rem / n);
rem -= (twodigits)hi * n;
}