260 static int decimal_cmp(const Decimal *pA, const Decimal *pB){  in decimal_cmp()  argument
262   if( pA->sign!=pB->sign ){  in decimal_cmp()
267     pA = pB;  in decimal_cmp()
268     pB = pTemp;  in decimal_cmp()
271   nBSig = pB->nDigit - pB->nFrac;  in decimal_cmp()
276   if( n>pB->nDigit ) n = pB->nDigit;  in decimal_cmp()
277   rc = memcmp(pA->a, pB->a, n);  in decimal_cmp()
279     rc = pA->nDigit - pB->nDigit;  in decimal_cmp()
295   Decimal *pA = 0, *pB = 0;  in decimalCmpFunc()  local
301   pB = decimal_new(context, argv[1], 0, 0);  in decimalCmpFunc()
302   if( pB==0 || pB->isNull ) goto cmp_done;  in decimalCmpFunc()
303   rc = decimal_cmp(pA, pB);  in decimalCmpFunc()
309   decimal_free(pB);  in decimalCmpFunc()
345 static void decimal_add(Decimal *pA, Decimal *pB){  in decimal_add()  argument
351   if( pA->oom || pB==0 || pB->oom ){  in decimal_add()
355   if( pA->isNull || pB->isNull ){  in decimal_add()
361   if( nSig<pB->nDigit-pB->nFrac ){  in decimal_add()
362     nSig = pB->nDigit - pB->nFrac;  in decimal_add()
365   if( nFrac<pB->nFrac ) nFrac = pB->nFrac;  in decimal_add()
368   decimal_expand(pB, nDigit, nFrac);  in decimal_add()
369   if( pA->oom || pB->oom ){  in decimal_add()
372     if( pA->sign==pB->sign ){  in decimal_add()
375         int x = pA->a[i] + pB->a[i] + carry;  in decimal_add()
387       rc = memcmp(pA->a, pB->a, nDigit);  in decimal_add()
389         aA = pB->a;  in decimal_add()
394         aB = pB->a;  in decimal_add()
421   Decimal *pB = decimal_new(0, 0, nKey2, zB);  in decimalCollFunc()  local
424   if( pA==0 || pB==0 ){  in decimalCollFunc()
427     rc = decimal_cmp(pA, pB);  in decimalCollFunc()
430   decimal_free(pB);  in decimalCollFunc()
447   Decimal *pB = decimal_new(context, argv[1], 0, 0);  in decimalAddFunc()  local
449   decimal_add(pA, pB);  in decimalAddFunc()
452   decimal_free(pB);  in decimalAddFunc()
460   Decimal *pB = decimal_new(context, argv[1], 0, 0);  in decimalSubFunc()  local
462   if( pB ){  in decimalSubFunc()
463     pB->sign = !pB->sign;  in decimalSubFunc()
464     decimal_add(pA, pB);  in decimalSubFunc()
468   decimal_free(pB);  in decimalSubFunc()
546   Decimal *pB = decimal_new(context, argv[1], 0, 0);  in decimalMulFunc()  local
552    || pB==0 || pB->oom || pB->isNull   in decimalMulFunc()
556   acc = sqlite3_malloc64( pA->nDigit + pB->nDigit + 2 );  in decimalMulFunc()
561   memset(acc, 0, pA->nDigit + pB->nDigit + 2);  in decimalMulFunc()
563   if( pB->nFrac<minFrac ) minFrac = pB->nFrac;  in decimalMulFunc()
567     for(j=pB->nDigit-1, k=i+j+3; j>=0; j--, k--){  in decimalMulFunc()
568       x = acc[k] + f*pB->a[j] + carry;  in decimalMulFunc()
579   pA->nDigit += pB->nDigit + 2;  in decimalMulFunc()
580   pA->nFrac += pB->nFrac;  in decimalMulFunc()
581   pA->sign ^= pB->sign;  in decimalMulFunc()
591   decimal_free(pB);  in decimalMulFunc()