本文整理汇总了C++中ExpGenerator::generateContiguousMoveExpr方法的典型用法代码示例。如果您正苦于以下问题：C++ ExpGenerator::generateContiguousMoveExpr方法的具体用法？C++ ExpGenerator::generateContiguousMoveExpr怎么用？C++ ExpGenerator::generateContiguousMoveExpr使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类ExpGenerator的用法示例。
在下文中一共展示了ExpGenerator::generateContiguousMoveExpr方法的1个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。
示例1: child
//.........这里部分代码省略.........
ULng32 indexValueTupleLen = 0;
// The Tuple Desc describing the tuple containing the new unPacked columns
// It is generated when the expression is generated.
//
ExpTupleDesc *indexValueTupleDesc = 0;
ValueIdList indexValueList;
if (indexValue() != NULL_VALUE_ID)
{
indexValueList.insert(indexValue());
expGen->processValIdList(indexValueList,
ExpTupleDesc::SQLARK_EXPLODED_FORMAT,
indexValueTupleLen,
indexValueAtp,
indexValueAtpIndex,
&indexValueTupleDesc,
ExpTupleDesc::SHORT_FORMAT);
GenAssert(indexValueTupleLen == sizeof(Int32),
"UnPackRows::codeGen: Internal Error");
}
// If a packingFactor exists, generate a move expression for this.
// It is assumed that the packingFactor expression evaluates to a
// 4 byte integer.
//
ex_expr *packingFactorExpr = 0;
ULng32 packingFactorTupleLen;
if(packingFactor().entries() > 0) {
expGen->generateContiguousMoveExpr(packingFactor(),
-1,
unPackColsAtp,
unPackColsAtpIndex,
ExpTupleDesc::SQLARK_EXPLODED_FORMAT,
packingFactorTupleLen,
&packingFactorExpr);
GenAssert(packingFactorTupleLen == sizeof(Int32),
"UnPackRows::codeGen: Internal Error");
}
// Generate the UnPack expressions.
//
// characteristicOutputs() - refers to the list of expressions
// to be move to another tuple.
//
// 0 - Do not add conv. nodes.
//
// unPackColsAtp - this expression will move data to the
// unPackColsAtp (0) ATP.
//
// unPackColsAtpIndex - within the unPackColsAtp (0) ATP, the destination
// for this move expression will be the unPackColsAtpIndex TP. This should
// be the next to the last TP of the work ATP. (The indexValue will be in
// the last position)
//
// SQLARK_EXPLODED_FORMAT - generate the move expression to construct
// the destination tuple in EXPLODED FORMAT.
//
// unPackColsTupleLen - This is an output which will contain the length
// of the destination Tuple.
//