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Minor performance enhancements to the OP_Affinity opcode.

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FossilOrigin-Name: c45cd3b947c0f03a688f827fddb4629a986788f0dd98d5ef899f11e68ff1c202
This commit is contained in:
drh
2017-04-01 20:14:01 +00:00
parent 96a7e28df6
commit 662c50e067
3 changed files with 11 additions and 11 deletions
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12
manifest
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@@ -1,5 +1,5 @@
C Remove\san\sunnecessary\sclearing\sof\sthe\sVdbe.iCurrentTime\svalue. C Minor\sperformance\senhancements\sto\sthe\sOP_Affinity\sopcode.
D 2017-04-01T19:45:20.706 D 2017-04-01T20:14:01.312
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F src/vdbeapi.c 5b08d82592bcff4470601fe78aaabebd50837860 F src/vdbeapi.c 5b08d82592bcff4470601fe78aaabebd50837860
@@ -1569,7 +1569,7 @@ F vsixtest/vsixtest.tcl 6a9a6ab600c25a91a7acc6293828957a386a8a93
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manifest.uuid
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@@ -1 +1 @@
fcd2acdd6075aa9a7a66ce254eba77485f7b2804127e109c0309173488cd4b87 c45cd3b947c0f03a688f827fddb4629a986788f0dd98d5ef899f11e68ff1c202

8
src/vdbe.c
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@@ -2710,18 +2710,18 @@ op_column_out:
*/ */
case OP_Affinity: { case OP_Affinity: {
const char *zAffinity; /* The affinity to be applied */ const char *zAffinity; /* The affinity to be applied */
char cAff; /* A single character of affinity */
zAffinity = pOp->p4.z; zAffinity = pOp->p4.z;
assert( zAffinity!=0 ); assert( zAffinity!=0 );
assert( pOp->p2>0 );
assert( zAffinity[pOp->p2]==0 ); assert( zAffinity[pOp->p2]==0 );
pIn1 = &aMem[pOp->p1]; pIn1 = &aMem[pOp->p1];
while( (cAff = *(zAffinity++))!=0 ){ do{
assert( pIn1 <= &p->aMem[(p->nMem+1 - p->nCursor)] ); assert( pIn1 <= &p->aMem[(p->nMem+1 - p->nCursor)] );
assert( memIsValid(pIn1) ); assert( memIsValid(pIn1) );
applyAffinity(pIn1, cAff, encoding); applyAffinity(pIn1, *(zAffinity++), encoding);
pIn1++; pIn1++;
} }while( zAffinity[0] );
break; break;
} }