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◆ preferred_associate()

ring_elem M2::RingQQ::preferred_associate ( ring_elem f) const
inlinevirtual

Reimplemented from Ring.

Definition at line 536 of file aring-glue.hpp.

537 {
538 mpq_srcptr a = MPQ_VAL(f);
539 if (mpq_sgn(a) >= 0) return from_long(1);
540 return from_long(-1);
541 }
virtual ring_elem from_long(long n) const
#define MPQ_VAL(f)
Definition ringelem.hpp:206

References M2::ConcreteRing< ARingQQ >::from_long(), and MPQ_VAL.