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Function dmd.backend.divcoeff.choose_multiplier

Implement Algorithm 6.2: Selection of multiplier and shift count

extern(C) bool choose_multiplier (
  int N,
  ulong d,
  int prec,
  ulong* pm,
  int* pshpost
) nothrow @trusted;


N 32 or 64
d divisor (must not be 0 or a power of 2)
prec bits of precision desired


*pm = factor *pshpost = post shift


true m >= 2**N


Walter Bright


Boost License 1.0