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Fix: OverflowSafeInt negation not handling INT64_MIN

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INT64_MIN negated is above INT64_MAX, and would overflow.
Instead, when negating INT64_MIN make it INT64_MAX.
This does mean that -(-(INT64_MIN)) != INT64_MIN.
This commit is contained in:
Charles Pigott 2021-07-19 12:41:31 +01:00
parent 9b0bb21f3b
commit 1e439979f7
1 changed files with 1 additions and 1 deletions
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src/core/overflowsafe_type.hpp
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@ -34,7 +34,7 @@ public:
inline OverflowSafeInt& operator = (const OverflowSafeInt& other) { this->m_value = other.m_value; return *this; }
inline OverflowSafeInt operator - () const { return OverflowSafeInt(-this->m_value); }
inline OverflowSafeInt operator - () const { return OverflowSafeInt(this->m_value == T_MIN ? T_MAX : -this->m_value); }
/**
* Safe implementation of addition.