QuaternionLn

/* QuaternionLn(Quaternion const&, Quaternion&) */

void QuaternionLn(Quaternion *param_1,Quaternion *param_2)

{
  longdouble lVar1;
  float fVar2;
  float fVar3;
  float fVar4;
  float fVar5;
  float fVar6;
  float fVar7;
  double dVar8;
  
  fVar5 = *(float *)(param_1 + 4);
  fVar6 = *(float *)(param_1 + 8);
  fVar4 = *(float *)param_1;
  fVar2 = fVar6 * fVar6 + fVar5 * fVar5 + fVar4 * fVar4;
  fVar7 = SQRT(fVar2);
  if (fVar7 <= 1e-05) {
    fVar4 = 0.0;
    fVar3 = *(float *)(param_1 + 0xc);
    fVar5 = fVar4;
    fVar6 = fVar4;
  }
  else {
    fVar3 = *(float *)(param_1 + 0xc);
    dVar8 = (double)fVar7;
    lVar1 = (longdouble)__atan2_finite(dVar8,(double)fVar3);
    fVar7 = (float)((double)lVar1 / dVar8);
    fVar4 = fVar4 * fVar7;
    fVar5 = fVar5 * fVar7;
    fVar6 = fVar6 * fVar7;
  }
  lVar1 = (longdouble)__log_finite((double)(fVar3 * fVar3 + fVar2));
  *(float *)param_2 = fVar4;
  *(float *)(param_2 + 4) = fVar5;
  *(float *)(param_2 + 8) = fVar6;
  *(float *)(param_2 + 0xc) = (float)((double)lVar1 * 0.5);
  return;
}