contrib/sqlite3/shell.c

4761 **    pB!=0
4762 **    pB->isNull==0
4764 static int decimal_cmp(const Decimal *pA, const Decimal *pB){
4766   if( pA->sign!=pB->sign ){
4771     pA = pB;
4772     pB = pTemp;
4775   nBSig = pB->nDigit - pB->nFrac;
4780   if( n>pB->nDigit ) n = pB->nDigit;
4781   rc = memcmp(pA->a, pB->a, n);
4783     rc = pA->nDigit - pB->nDigit;
4799   Decimal *pA = 0, *pB = 0;
4805   pB = decimal_new(context, argv[1], 0, 0);
4806   if( pB==0 || pB->isNull ) goto cmp_done;
4807   rc = decimal_cmp(pA, pB);
4813   decimal_free(pB);
4845 ** Add the value pB into pA.
4847 ** Both pA and pB might become denormalized by this routine.
4849 static void decimal_add(Decimal *pA, Decimal *pB){
4855   if( pA->oom || pB==0 || pB->oom ){
4859   if( pA->isNull || pB->isNull ){
4865   if( nSig<pB->nDigit-pB->nFrac ){
4866     nSig = pB->nDigit - pB->nFrac;
4869   if( nFrac<pB->nFrac ) nFrac = pB->nFrac;
4872   decimal_expand(pB, nDigit, nFrac);
4873   if( pA->oom || pB->oom ){
4876     if( pA->sign==pB->sign ){
4879         int x = pA->a[i] + pB->a[i] + carry;
4891       rc = memcmp(pA->a, pB->a, nDigit);
4893         aA = pB->a;
4898         aB = pB->a;
4925   Decimal *pB = decimal_new(0, 0, nKey2, zB);
4928   if( pA==0 || pB==0 ){
4931     rc = decimal_cmp(pA, pB);
4934   decimal_free(pB);
4951   Decimal *pB = decimal_new(context, argv[1], 0, 0);
4953   decimal_add(pA, pB);
4956   decimal_free(pB);
4964   Decimal *pB = decimal_new(context, argv[1], 0, 0);
4966   if( pB==0 ) return;
4967   pB->sign = !pB->sign;
4968   decimal_add(pA, pB);
4971   decimal_free(pB);
5049   Decimal *pB = decimal_new(context, argv[1], 0, 0);
5055    || pB==0 || pB->oom || pB->isNull
5059   acc = sqlite3_malloc64( pA->nDigit + pB->nDigit + 2 );
5064   memset(acc, 0, pA->nDigit + pB->nDigit + 2);
5066   if( pB->nFrac<minFrac ) minFrac = pB->nFrac;
5070     for(j=pB->nDigit-1, k=i+j+3; j>=0; j--, k--){
5071       x = acc[k] + f*pB->a[j] + carry;
5082   pA->nDigit += pB->nDigit + 2;
5083   pA->nFrac += pB->nFrac;
5084   pA->sign ^= pB->sign;
5094   decimal_free(pB);