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Add more PDD utilities (div, pow) (#5180)

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* Expose 'inv' on rationals to get reciprocal value

* Align parameter names with implementation

* Add cached operation that divides PDD by a constant

* Fix display for constant PDDs

* operator^ should probably call ^ instead of + (mk_xor instead of add)

* Add helper function 'pow' on PDDs
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Jakob Rath 2021-04-14 13:48:42 +02:00 • committed by GitHub
parent 2f7069a8b7
commit 324d9ed461
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5 changed files with 146 additions and 20 deletions
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6
src/util/rational.h
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@ -157,6 +157,12 @@ public:
friend inline rational numerator(rational const & r) { rational result; m().get_numerator(r.m_val, result.m_val); return result; }
friend inline rational denominator(rational const & r) { rational result; m().get_denominator(r.m_val, result.m_val); return result; }
friend inline rational inv(rational const & r) {
rational result;
m().inv(r.m_val, result.m_val);
return result;
}
rational & operator+=(rational const & r) {
m().add(m_val, r.m_val, m_val);