1574   decContext aset;		   /* working context */  in decNumberLog10()  local
1598     decContextDefault(&aset, DEC_INIT_DECIMAL64); /* clean context */  in decNumberLog10()
1606       aset.digits=1;  in decNumberLog10()
1607       decCopyFit(w, rhs, &aset, &residue, &copystat); /* copy & shorten */  in decNumberLog10()
1638     aset.digits=p;			/* as calculated */  in decNumberLog10()
1639     aset.emax=DEC_MAX_MATH;		/* usual bounds */  in decNumberLog10()
1640     aset.emin=-DEC_MAX_MATH;		/* .. */  in decNumberLog10()
1641     aset.clamp=0;			/* and no concrete format */  in decNumberLog10()
1642     decLnOp(a, rhs, &aset, &status);	/* a=ln(rhs) */  in decNumberLog10()
1669     aset.digits=p;  in decNumberLog10()
1670     decLnOp(b, w, &aset, &ignore);	/* b=ln(10) */  in decNumberLog10()
1672     aset.digits=set->digits;		/* for final divide */  in decNumberLog10()
1673     decDivideOp(res, a, b, &aset, DIVIDE, &status); /* into result */  in decNumberLog10()
2127   decContext aset;		   /* working context */  in decNumberPower()  local
2256       decContextDefault(&aset, DEC_INIT_DECIMAL64); /* clean context */  in decNumberPower()
2257       aset.emax=DEC_MAX_MATH;		/* usual bounds */  in decNumberPower()
2258       aset.emin=-DEC_MAX_MATH;		/* .. */  in decNumberPower()
2259       aset.clamp=0;			/* and no concrete format */  in decNumberPower()
2271       aset.digits=MAXI(lhs->digits, set->digits)+6+4;  in decNumberPower()
2283       aset=*set;			/* clone the context */  in decNumberPower()
2284       aset.round=DEC_ROUND_HALF_EVEN;	/* internally use balanced */  in decNumberPower()
2286       aset.digits=reqdigits+(rhs->digits+rhs->exponent)+2;  in decNumberPower()
2288       if (!set->extended) aset.digits--;     /* use classic precision */  in decNumberPower()
2291       if (aset.digits>DECNUMMAXP) {status|=DEC_Invalid_operation; break;}  in decNumberPower()
2294     /* aset.digits is the count of digits for the accumulator needed */  in decNumberPower()
2296     needbytes=sizeof(decNumber)+(D2U(aset.digits)-1)*sizeof(Unit);  in decNumberPower()
2305     /* here, aset is set up and accumulator is ready for use */  in decNumberPower()
2311       decLnOp(dac, lhs, &aset, &status);     /* dac=ln(lhs) */  in decNumberPower()
2324 	decMultiplyOp(dac, dac, rhs, &aset, &status);  /* dac=dac*rhs */  in decNumberPower()
2325 	decExpOp(dac, dac, &aset, &status);	       /* dac=exp(dac) */  in decNumberPower()
2343 	  decDivideOp(dac, &dnOne, lhs, &aset, DIVIDE, &status);  in decNumberPower()
2373 	  decMultiplyOp(dac, dac, lhs, &aset, &status); /* dac=dac*x */  in decNumberPower()
2377 	decMultiplyOp(dac, dac, dac, &aset, &status); /* dac=dac*dac [square] */  in decNumberPower()
2395 	/* round subnormals [to set.digits rather than aset.digits] */  in decNumberPower()
2406 	decDivideOp(dac, &dnOne, dac, &aset, DIVIDE, &status);  in decNumberPower()
5382   decContext aset, tset, dset;	   /* working contexts */  in decExpOp()  local
5462     decContextDefault(&aset, DEC_INIT_DECIMAL64);  in decExpOp()
5464     aset.emax=set->emax;		/* usual bounds */  in decExpOp()
5465     aset.emin=set->emin;		/* .. */  in decExpOp()
5466     aset.clamp=0;			/* and no concrete format */  in decExpOp()
5570       aset.digits=p*2;			/* double */  in decExpOp()
5583 	decAddOp(a, a, t, &aset, 0, status);	       /* a=a+t */  in decExpOp()
5609       aset.digits=p+2;		   /* sufficient precision */  in decExpOp()
5621 	  decMultiplyOp(t, t, a, &aset, status); /* acc=acc*x */  in decExpOp()
5625 	decMultiplyOp(t, t, t, &aset, status); /* acc=acc*acc [square] */  in decExpOp()
5634     aset.digits=set->digits;		/* [use default rounding] */  in decExpOp()
5635     decCopyFit(res, a, &aset, &residue, status); /* copy & shorten */  in decExpOp()
5756   decContext aset, bset;	   /* working contexts */  local
5792 	aset=*set; aset.round=DEC_ROUND_HALF_EVEN;
5794 	decNumberFromString(res, LN10, &aset);
5798 	aset=*set; aset.round=DEC_ROUND_HALF_EVEN;
5800 	decNumberFromString(res, LN2, &aset);
5845     decContextDefault(&aset, DEC_INIT_DECIMAL64); /* 16-digit extended */
5850     decMultiplyOp(a, a, b, &aset, &ignore);  /* a=a*b */
5854     aset.digits=2; aset.round=DEC_ROUND_DOWN;
5855     decCopyFit(b, rhs, &aset, &residue, &ignore); /* copy & shorten */
5863     aset.digits=16; aset.round=DEC_ROUND_HALF_EVEN; /* restore */
5864     decAddOp(a, a, b, &aset, 0, &ignore); /* acc=a+b */
5873     aset.emax=set->emax;
5874     aset.emin=set->emin;
5875     aset.clamp=0;			/* no concrete format */
5877     bset=aset;
5886     aset.digits=pp;			/* working context */
5917 	  decCompareOp(&cmp, rhs, &numone, &aset, COMPARE, &ignore); /* rhs=1 ? */
5927       decAddOp(a, a, b, &aset, 0, &ignore);  /* a=a+b for next estimate */
5932       aset.digits=pp;			     /* working context */
5946     aset.digits=set->digits;		/* [use default rounding] */
5947     decCopyFit(res, a, &aset, &residue, status); /* copy & shorten */