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core: Prevent signed integer overflow of minimum value

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This commit is contained in:
Gabriel Ferreira
2024-09-11 12:30:52 +02:00
parent d09d84ece7
commit 17e62acd68
1 changed files with 2 additions and 1 deletions
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3
src/core/model/int64x64-128.h
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@@ -217,7 +217,8 @@ class int64x64_t
inline double GetDouble() const
{
const bool negative = _v < 0;
const uint128_t value = negative ? -_v : _v;
const int128_t vTemp = _v + (_v == std::numeric_limits<int128_t>::min());
const uint128_t value = negative ? -vTemp : vTemp;
const long double fhi = value >> 64;
const long double flo = (value & HP_MASK_LO) / HP_MAX_64;
long double retval = fhi;