8000 gh-84436: Add static flag in PyLongObject's lv_tag by eduardo-elizondo · Pull Request #103403 · python/cpython · GitHub
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gh-84436: Add static flag in PyLongObject's lv_tag #103403

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gh-84436: Add static flag in PyLongObject's lv_tag #103403

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cc8484a
Add static flag in PyLongObject's lv_tag
eduardo-elizondo Apr 10, 2023
2a23b75
Also correctly set the flags in SetDigit functions
eduardo-elizondo Apr 10, 2023
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Also correctly set the flags in SetDigit functions
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@eduardo-elizondo
eduardo-elizondo committed Apr 10, 2023
commit 2a23b75d7f32dfc95d21e79ece9e663d34489472
7 changes: 5 additions & 2 deletions Include/internal/pycore_long.h
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Expand Up @@ -237,14 +237,17 @@ _PyLong_SetSignAndDigitCount(PyLongObject *op, int sign, Py_ssize_t size)
assert(size >= 0);
assert(-1 <= sign && sign <= 1);
assert(sign != 0 || size == 0);
op->long_value.lv_tag = TAG_FROM_SIGN_AND_SIZE(sign, (size_t)size);
op->long_value.lv_tag = TAG_FROM_SIGN_AND_SIZE(sign, (size_t)size) |
(op->long_value.lv_tag & SIGN_STATIC);
}

static inline void
_PyLong_SetDigitCount(PyLongObject *op, Py_ssize_t size)
{
assert(size >= 0);
op->long_value.lv_tag = (((size_t)size) << NON_SIZE_BITS) | (op->long_value.lv_tag & SIGN_MASK);
op->long_value.lv_tag = (((size_t)size) << NON_SIZE_BITS) |
(op->long_value.lv_tag & SIGN_MASK) |
(op->long_value.lv_tag & SIGN_STATIC);
}

#define NON_SIZE_MASK ~((1 << NON_SIZE_BITS) - 1)
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