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viable

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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2021-07-04 10:20:01 -07:00
parent c0e885931c
commit aeec3bb6df
2 changed files with 37 additions and 5 deletions
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9
src/math/bigfix/u256.h
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@ -13,7 +13,7 @@ public:
u256 operator*(u256 const& other) const;
u256 operator+(u256 const& other) const { u256 r = *this; return r += other; }
u256 operator-(u256 const& other) const { u256 r = *this; return r -= other; }
u256 operator-() const { u256 r = *this; return r.inv(); }
u256 operator-() const { u256 r = *this; return r.uminus(); }
u256 operator<<(uint64_t sh) const;
u256 operator>>(uint64_t sh) const;
u256 operator&(u256 const& other) const;
@ -28,7 +28,7 @@ public:
u256& operator+=(u256 const& other);
u256& operator*=(u256 const& other);
u256& operator-=(u256 const& other);
u256& inv(); /* unary minus */
u256& uminus(); /* unary minus */
// comparisons
bool operator==(u256 const& other) const { return m_num[0] == other.m_num[0] && m_num[1] == other.m_num[1] && m_num[2] == other.m_num[2] && m_num[3] == other.m_num[3]; }
@ -54,3 +54,8 @@ public:
inline std::ostream& operator<<(std::ostream& out, u256 const& u) {
return u.display(out);
}
inline bool operator<(uint64_t n, u256 const& y) { return y > n; }
inline bool operator<=(uint64_t n, u256 const& y) { return y >= n; }
inline bool operator>(uint64_t n, u256 const& y) { return y < n; }
inline bool operator>=(uint64_t n, u256 const& y) { return y <= n; }