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u256, separate viable_set

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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2021-07-04 23:47:12 -07:00
parent aeec3bb6df
commit 04ce8ca5ef
18 changed files with 374 additions and 167 deletions
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2
src/math/interval/mod_interval.h
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@ -66,6 +66,8 @@ public:
mod_interval& intersect_ugt(Numeral const& l);
mod_interval& intersect_fixed(Numeral const& n);
mod_interval& intersect_diff(Numeral const& n);
mod_interval& update_lo(Numeral const& new_lo);
mod_interval& update_hi(Numeral const& new_hi);
mod_interval operator&(mod_interval const& other) const;
mod_interval operator+(mod_interval const& other) const;

20
src/math/interval/mod_interval_def.h
View file

@ -229,3 +229,23 @@ mod_interval<Numeral>& mod_interval<Numeral>::intersect_diff(Numeral const& a) {
hi = a;
return *this;
}
template<typename Numeral>
mod_interval<Numeral>& mod_interval<Numeral>::update_lo(Numeral const& new_lo) {
SASSERT(lo <= new_lo);
if (lo < hi && hi <= new_lo)
set_empty();
else
lo = new_lo;
return *this;
}
template<typename Numeral>
mod_interval<Numeral>& mod_interval<Numeral>::update_hi(Numeral const& new_hi) {
SASSERT(new_hi <= hi);
if (new_hi <= lo && lo < hi)
set_empty();
else
hi = new_hi;
return *this;
}